Updated: Thursday 04 December 2025 - 06:23 
Next update: Thursday 04 December 2025 - 10:23 

Our own forecast Harrow, UK
by: Hillview Weather


Temperature

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Thunder

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Sol

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Wind

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Max/Min Temperature

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Today Tonight Friday Friday
night
Saturday Saturday
night
Sunday Sunday
night
ra nfg sctfg nra cloudy nra ra nfg
Rain likely Fog Fog a.m. Rain likely Cloudy Chance rain Chance rain Fog
10 mm (80%) - <2 mm (30%) 10 mm (80%) <2 mm (30%) <5 mm (60%) <5 mm (50%) <2 mm (10%)
Hi: Lo: Hi: Lo: Hi: 12° Lo: Hi: 12° Lo:
SSW
5.5923 mph SSW
SW
2.4855 mph SW
S
6.2137 mph S
S
9.3206 mph S
SSW
7.4565 mph SSW
SSW
6.8351 mph SSW
SW
4.971 mph SW
WSW
3.1069 mph WSW
raTodayDense overcast in the morning, becoming mostly cloudy to cloudy in the afternoon. Rain likely in the morning, then a chance of rain in the afternoon. High 8°. UV index up to 0. Wind south-southwest around 9 mph, gusting to 16 mph. Chance of precipitation 80 percent. Precipitation mostly around 10 mm.
nfgTonightMostly clear. Patchy light fog. Low 2°. Wind southwest around 4 mph.
sctfgFridayPartly to mostly cloudy in the morning, becoming dense overcast in the afternoon. Patchy light fog in the morning. A chance of rain in the afternoon. High 8°. UV index up to 0. Wind south around 4 mph in the morning, becoming 10 mph, gusting to 20 mph, in the afternoon. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
nraFriday
night
Cloudy. Rain likely in the evening, then a chance of rain after midnight. Low 7°, but temperatures rising after midnight. Wind south around 15 mph, gusting to 24 mph, in the evening, becoming 11 mph, gusting to 18 mph, after midnight. Chance of precipitation 80 percent. Precipitation mostly around 10 mm.
cloudySaturdayDense overcast in the morning, becoming cloudy in the afternoon. A chance of rain. High 12°. UV index up to 0. Wind south-southwest around 12 mph, gusting to 20 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
nraSaturday
night
Cloudy. A chance of rain after midnight. Low 9°. Wind south-southwest around 11 mph, gusting to 19 mph, in the evening, becoming 7 mph after midnight. Chance of precipitation 60 percent. Precipitation mostly between 2 and 5 mm.
raSundayDense overcast. A slight chance of rain in the morning, then a chance of rain in the afternoon. High 12°. UV index up to 0. Wind southwest around 8 mph. Chance of precipitation 50 percent. Precipitation mostly between 2 and 5 mm.
nfgSunday
night
Mostly cloudy to cloudy in the evening, becoming cloudy after midnight. Patchy light fog. A slight chance of rain. Low 8°. Wind west-southwest around 5 mph. Chance of precipitation less than 20 percent. Precipitation mostly less than 2 mm.
raMondayDense overcast. Rain likely. High 11°. UV index up to 0. Wind south around 4 mph in the morning, becoming 8 mph in the afternoon. Chance of precipitation 60 percent. Precipitation mostly around 5 mm.
nraMonday
night
Dense overcast. Rain likely in the evening, then a chance of rain after midnight. Low 11°, but temperatures rising after midnight. Wind south-southwest around 12 mph, gusting to 21 mph, in the evening, becoming 18 mph, gusting to 25 mph, after midnight. Chance of precipitation 80 percent. Precipitation mostly around 10 mm.
raTuesdayDense overcast. A slight chance of rain in the morning, then rain likely in the afternoon. High 13°. UV index up to 0. Wind south-southwest around 13 mph, gusting to 24 mph, in the morning, becoming 6 mph in the afternoon. Chance of precipitation 70 percent. Precipitation mostly between 5 and 10 mm.
nraTuesday
night
Dense overcast. Rain likely. Low 11°. Wind south-southwest around 12 mph, gusting to 18 mph, in the evening, becoming 16 mph, gusting to 24 mph, after midnight. Chance of precipitation 70 percent. Precipitation mostly around 5 mm.
bknWednesdayCloudy in the morning, becoming partly to mostly cloudy in the afternoon. A slight chance of rain. High 12°, but temperatures falling in the afternoon. UV index up to 0. Wind west-southwest around 16 mph, gusting to 24 mph, in the morning, becoming 11 mph, gusting to 20 mph, in the afternoon. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
nfgWednesday
night
Clear in the evening, becoming mostly clear after midnight. Patchy light fog. Low 5°. Wind west-southwest around 8 mph.
Period Forecast Temperature Wind Precipitation Pressure UV
Night
05 - 06
Cloudy Chance drizzle Cloudy
Chance drizzle
South 7 mph
2 Bft Light breeze
- 997 hPa-
Morning
06 - 12
Overcast Chance Rain ShowersOvercast Moderate rain Overcast
Chance drizzle - Moderate rain - Chance Rain Showers
South SW 11 mph
Gust up to 17 mph
3 Bft Gentle breeze
6.52 mm 996 hPa-
Afternoon
12 - 18
Partly cloudy Light fogCloudy Chance Rain Showers Overcast - Partly cloudy
Chance Rain Showers - Light rain - Light fog
SW 6 - 10 mph
Gust up to 16 mph
3 Bft Gentle breeze
1.91 mm 997 hPa-
Evening
18 - 00
Mostly clear Light fog Mostly clear
Light fog
SW 2 - 6 mph
Gust up to 10 mph
2 Bft Light breeze
- 1002 hPa-
Period Forecast Temperature Wind Precipitation Pressure UV
Night
00 - 06
Mostly clear Light fogMostly clear Light fog Mostly clear
Light fog
SW 4 mph
1 Bft Light air
- 1005 hPa-
Morning
06 - 12
Partly cloudy Light fogMostly cloudy Light fog Cloudy
Light fog
- SW SSE 3 - 7 mph
Gust up to 11 mph
2 Bft Light breeze
- 1007 hPa-
Afternoon
12 - 18
Overcast Heavy dewOvercast Chance drizzle Overcast
Chance drizzle - Light rain
SSE 7 - 14 mph
Gust up to 20 mph
4 Bft Moderate breeze
1.03 mm 1004 hPa-
Evening
18 - 00
Mostly cloudy Moderate dewOvercast Moderate rain Overcast - Mostly cloudy
Chance drizzle - Light rain
SSE 12 - 17 mph
Gust up to 24 mph
4 Bft Moderate breeze
8 mm 997 hPa-
Period Forecast Temperature Wind Precipitation Pressure UV
Night
00 - 06
Mostly cloudy Heavy dewOvercast Chance Rain Showers Cloudy - Overcast
Drizzle - Chance Rain Showers - Probably showers - Light rain
10° SSE SSW 12 mph
Gust up to 17 mph
3 Bft Gentle breeze
0.65 mm 994 hPa-
Morning
06 - 12
Overcast Chance Rain Showers Overcast
Chance Rain Showers - Drizzle
11° SSW 13 mph
Gust up to 19 mph
4 Bft Moderate breeze
0.26 mm 995 hPa-
Afternoon
12 - 18
Cloudy Chance Rain Showers Overcast - Cloudy
Chance Rain Showers - Drizzle
12° SSW 14 mph
Gust up to 20 mph
4 Bft Moderate breeze
0.14 mm 998 hPa-
Evening
18 - 00
Cloudy Heavy dewCloudy Chance Rain Showers Cloudy
Chance Rain Showers
11° SSW 8 - 12 mph
Gust up to 18 mph
3 Bft Gentle breeze
- 1002 hPa-
Period Forecast Temperature Wind Precipitation Pressure UV
Night
00 - 06
Overcast Heavy dewOvercast Moderate rain Cloudy - Overcast
Drizzle - Moderate rain
10° SSW 8 mph
Gust up to 13 mph
2 Bft Light breeze
3.94 mm 1002 hPa-
Morning
06 - 12
Cloudy Heavy dewOvercast Light rain Overcast - Cloudy
Light rain
11° SSW 10 mph
Gust up to 14 mph
3 Bft Gentle breeze
0.8 mm 1001 hPa-
Afternoon
12 - 18
Cloudy Moderate dewOvercast Chance drizzle Cloudy - Overcast
Chance drizzle - Light rain
12° SSW West 3 - 10 mph
Gust up to 15 mph
3 Bft Gentle breeze
2.58 mm 1003 hPa-
Evening
18 - 00
Mostly cloudy Light fogCloudy Light fog Overcast - Cloudy
Drizzle - Light fog
10° West 6 mph
Gust up to 10 mph
2 Bft Light breeze
0.02 mm 1007 hPa-
Period Forecast Temperature Wind Precipitation Pressure UV
Night
00 - 06
Overcast Heavy dewCloudy Light fog Cloudy - Overcast
Light fog
West SSW 3 - 7 mph
2 Bft Light breeze
- 1011 hPa-
Morning
06 - 12
Overcast Heavy dewOvercast Moderate rain Overcast
Drizzle - Moderate rain
11° SSW SSE 3 - 7 mph
2 Bft Light breeze
3.79 mm 1011 hPa-
Afternoon
12 - 18
Overcast Heavy dewOvercast Drizzle Overcast
Light rain - Drizzle
11° SSE SSW 9 mph
Gust up to 13 mph
3 Bft Gentle breeze
0.8 mm 1010 hPa-
Evening
18 - 00
Overcast Heavy dewOvercast Moderate rain Overcast
Moderate rain - Chance Rain Showers
12° SSW 8 - 16 mph
Gust up to 21 mph
4 Bft Moderate breeze
7.29 mm 1009 hPa-
Period Forecast Temperature Wind Precipitation Pressure UV
Night
00 - 06
Overcast Heavy dewOvercast Drizzle Overcast
Chance Rain Showers - Light rain - Drizzle
12° SSW 20 mph
Gust up to 26 mph
 5 Bft Fresh breeze 
1.7 mm 1007 hPa-
Morning
06 - 12
Overcast Heavy dewOvercast Drizzle Overcast
Drizzle
12° SSW 8 - 18 mph
Gust up to 24 mph
4 Bft Moderate breeze
0.32 mm 1006 hPa-
Afternoon
12 - 18
Overcast Chance drizzleOvercast Moderate rain Overcast
Chance Rain Showers - Chance drizzle - Moderate rain
13° SSW 3 - 11 mph
Gust up to 15 mph
3 Bft Gentle breeze
7.05 mm 1006 hPa-
Evening
18 - 00
Overcast Chance Rain Showers Overcast
Chance drizzle - Light rain - Chance Rain Showers
12° SSW 13 mph
Gust up to 19 mph
4 Bft Moderate breeze
4.42 mm 1003 hPa-
Period Forecast Temperature Wind Precipitation Pressure UV
Night
00 - 06
Overcast Chance Rain Showers Overcast
Chance drizzle - Light rain - Chance Rain Showers
12° SSW South 12 - 19 mph
Gust up to 24 mph
4 Bft Moderate breeze
1.4 mm 998 hPa-
Morning
06 - 12
Cloudy Chance Rain Showers Overcast - Cloudy
Chance Rain Showers - Drizzle
13° South WSW 13 - 19 mph
Gust up to 25 mph
4 Bft Moderate breeze
0.05 mm 1000 hPa-
Afternoon
12 - 18
Mostly clear Heavy dewCloudy Chance Rain Showers Partly cloudy - Mostly clear
Chance Rain Showers - Drizzle
- 12° WSW 9 - 13 mph
Gust up to 19 mph
4 Bft Moderate breeze
0.09 mm 1005 hPa-
Evening
18 - 00
Clear Heavy dewMostly clear Light fog Mostly clear
Light fog
- WSW 9 mph
Gust up to 14 mph
3 Bft Gentle breeze
- 1009 hPa-
Period Forecast Temperature Wind Precipitation Pressure UV
Night
00 - 06
Clear Light fog Clear
Light fog
WSW 9 mph
3 Bft Gentle breeze
- 1011 hPa-
Period Forecast Temperature Wind Precipitation Lightning Dewpoint Pressure Humidity UV Clouds Zicht
05 - 06 Cloudy Chance drizzle
Cloudy
Chance drizzle

(Feels like: 5°C)
South
7 mph South 2 Bft
Light breeze
- - 6°C 997.0 hPa 89 %- 100 % 13 miles
06 - 07 Overcast Chance drizzle
Overcast
Chance drizzle

(Feels like: 5°C)
South
10 mph South 3 Bft
Gentle breeze
- - 6°C 997.1 hPa 90 %- 100 % 13 miles
07 - 08 Overcast Light rain
Overcast
Light rain

(Feels like: 4°C)
South
10 mph South 3 Bft
Gentle breeze
0.16 mm - 6°C 996.3 hPa 92 %- 100 % 9 miles
08 - 09 Overcast Chance Rain Showers
Overcast
Chance Rain Showers

(Feels like: 4°C)
South
10 mph South 3 Bft
Gentle breeze
0.82 mm - 6°C 995.5 hPa 96 %- 100 % 13 miles
09 - 10 Overcast Chance Rain Showers
Overcast
Chance Rain Showers

(Feels like: 4°C)
South
11 mph South 3 Bft
Gentle breeze
- - 6°C 994.9 hPa 96 %- 100 % 13 miles
10 - 11 Overcast Moderate rain
Overcast
Moderate rain

(Feels like: 4°C)
South
10 mph South 3 Bft
Gentle breeze
0.92 mm - 7°C 995.0 hPa 97 %- 100 % 3 miles
11 - 12 Overcast Chance Rain Showers
Overcast
Chance Rain Showers

(Feels like: 4°C)
SW
10 mph SW 3 Bft
Gentle breeze
4.62 mm - 7°C 994.8 hPa 99 %- 100 % 11 miles
12 - 13 Overcast Chance Rain Showers
Overcast
Chance Rain Showers

(Feels like: 5°C)
SW
9 mph SW 3 Bft
Gentle breeze
- - 7°C 994.5 hPa 96 %- 99 % 12 miles
13 - 14 Cloudy Light rain
Cloudy
Light rain

(Feels like: 5°C)
SW
9 mph SW 3 Bft
Gentle breeze
0.32 mm - 7°C 995.2 hPa 95 %- 96 % 7 miles
14 - 15 Cloudy Chance Rain Showers
Cloudy
Chance Rain Showers

(Feels like: 4°C)
SW
9 mph SW 3 Bft
Gentle breeze
1.59 mm - 7°C 996.0 hPa 99 %- 90 % 10 miles
15 - 16 Mostly cloudy Chance Rain Showers
Mostly cloudy
Chance Rain Showers

(Feels like: 5°C)
SW
8 mph SW 3 Bft
Gentle breeze
- - 7°C 996.9 hPa 98 %- 77 % 11 miles
16 - 17 Mostly cloudy Light dew
Mostly cloudy

(Feels like: 5°C)
SW
7 mph SW 2 Bft
Light breeze
- - 6°C 997.7 hPa 97 %- 58 % 10 miles
17 - 18 Partly cloudy Light fog
Partly cloudy
Light fog

(Feels like: 4°C)
SW
6 mph SW 2 Bft
Light breeze
- - 6°C 998.7 hPa 97 %- 37 % 8 miles
18 - 19 Mostly clear Light fog
Mostly clear
Light fog

(Feels like: 4°C)
SW
5 mph SW 2 Bft
Light breeze
- - 6°C 999.7 hPa 98 %- 21 % 5 miles
19 - 20 Mostly clear Light fog
Mostly clear
Light fog

(Feels like: 4°C)
SW
4 mph SW 1 Bft
Light air
- - 6°C 1000.7 hPa 99 %- 18 % 5 miles
20 - 21 Mostly clear Light fog
Mostly clear
Light fog
SW
4 mph SW 1 Bft
Light air
- - 5°C 1001.5 hPa 99 %- 15 % 4 miles
21 - 22 Mostly clear Light fog
Mostly clear
Light fog
SW
4 mph SW 1 Bft
Light air
- - 5°C 1002.3 hPa 100 %- 13 % 5 miles
22 - 23 Mostly clear Light fog
Mostly clear
Light fog
SW
3 mph SW 1 Bft
Light air
- - 5°C 1003.0 hPa 100 %- 13 % 5 miles
23 - 00 Mostly clear Light fog
Mostly clear
Light fog
SW
3 mph SW 1 Bft
Light air
- - 4°C 1003.7 hPa 100 %- 14 % 6 miles
Period Forecast Temperature Wind Precipitation Lightning Dewpoint Pressure Humidity UV Clouds Zicht
00 - 01 Mostly clear Light fog
Mostly clear
Light fog
SW
4 mph SW 1 Bft
Light air
- - 4°C 1004.4 hPa 100 %- 14 % 5 miles
01 - 02 Mostly clear Light fog
Mostly clear
Light fog
SW
4 mph SW 1 Bft
Light air
- - 4°C 1004.9 hPa 100 %- 14 % 5 miles
02 - 03 Mostly clear Light fog
Mostly clear
Light fog
SW
3 mph SW 1 Bft
Light air
- - 4°C 1005.4 hPa 100 %- 14 % 6 miles
03 - 04 Mostly clear Light fog
Mostly clear
Light fog
SW
3 mph SW 1 Bft
Light air
- - 3°C 1005.8 hPa 100 %- 17 % 6 miles
04 - 05 Mostly clear Light fog
Mostly clear
Light fog
SW
3 mph SW 1 Bft
Light air
- - 3°C 1006.0 hPa 100 %- 24 % 6 miles
05 - 06 Mostly clear Light fog
Mostly clear
Light fog
SW
3 mph SW 1 Bft
Light air
- - 3°C 1006.4 hPa 100 %- 31 % 6 miles
06 - 07 Partly cloudy Light fog
Partly cloudy
Light fog
SW
3 mph SW 1 Bft
Light air
- - 3°C 1006.9 hPa 100 %- 45 % 6 miles
07 - 08 Partly cloudy Light fog
Partly cloudy
Light fog
SW
3 mph SW 1 Bft
Light air
- - 2°C 1007.1 hPa 100 %- 67 % 7 miles
08 - 09 Mostly cloudy Light fog
Mostly cloudy
Light fog
SSE
4 mph SSE 1 Bft
Light air
- - 2°C 1007.3 hPa 100 %- 84 % 7 miles
09 - 10 Mostly cloudy Heavy dew
Mostly cloudy

(Feels like: 1°C)
SSE
4 mph SSE 1 Bft
Light air
- - 3°C 1007.3 hPa 99 %- 93 % 10 miles
10 - 11 Cloudy Heavy dew
Cloudy

(Feels like: 2°C)
SSE
6 mph SSE 2 Bft
Light breeze
- - 4°C 1007.2 hPa 98 %- 95 % 11 miles
11 - 12 Cloudy Heavy dew
Cloudy

(Feels like: 3°C)
SSE
7 mph SSE 2 Bft
Light breeze
- - 5°C 1006.6 hPa 97 %- 97 % 12 miles
12 - 13 Overcast Heavy dew
Overcast

(Feels like: 3°C)
SSE
8 mph SSE 2 Bft
Light breeze
- - 5°C 1005.8 hPa 95 %- 98 % 13 miles
13 - 14 Overcast Drizzle
Overcast
Drizzle

(Feels like: 4°C)
SSE
9 mph SSE 3 Bft
Gentle breeze
0.01 mm - 6°C 1004.9 hPa 94 %- 99 % 12 miles
14 - 15 Overcast Chance drizzle
Overcast
Chance drizzle

(Feels like: 4°C)
SSE
10 mph SSE 3 Bft
Gentle breeze
0.04 mm - 6°C 1004.1 hPa 94 %- 99 % 13 miles
15 - 16 Overcast Chance drizzle
Overcast
Chance drizzle

(Feels like: 5°C)
SSE
11 mph SSE 3 Bft
Gentle breeze
- - 6°C 1003.4 hPa 93 %- 100 % 13 miles
16 - 17 Overcast Light rain
Overcast
Light rain

(Feels like: 4°C)
SSE
12 mph SSE 3 Bft
Gentle breeze
0.16 mm - 7°C 1002.2 hPa 95 %- 100 % 9 miles
17 - 18 Overcast Chance drizzle
Overcast
Chance drizzle

(Feels like: 4°C)
SSE
14 mph SSE 4 Bft
Moderate breeze
0.82 mm - 7°C 1001.1 hPa 99 %- 100 % 13 miles
18 - 19 Overcast Chance drizzle
Overcast
Chance drizzle

(Feels like: 4°C)
SSE
15 mph SSE 4 Bft
Moderate breeze
- - 7°C 1000.1 hPa 99 %- 100 % 13 miles
19 - 20 Overcast Moderate rain
Overcast
Moderate rain

(Feels like: 4°C)
SSE
16 mph SSE 4 Bft
Moderate breeze
1.01 mm - 8°C 999.1 hPa 100 %- 100 % 3 miles
20 - 21 Cloudy Moderate dew
Cloudy

(Feels like: 4°C)
SSE
17 mph SSE 4 Bft
Moderate breeze
5.08 mm - 8°C 997.9 hPa 100 %- 100 % 13 miles
21 - 22 Cloudy Moderate dew
Cloudy

(Feels like: 5°C)
SSE
17 mph SSE 4 Bft
Moderate breeze
- - 8°C 996.7 hPa 99 %- 95 % 13 miles
22 - 23 Cloudy Light rain
Cloudy
Light rain

(Feels like: 5°C)
SSE
15 mph SSE 4 Bft
Moderate breeze
0.31 mm - 9°C 995.8 hPa 100 %- 82 % 6 miles
23 - 00 Mostly cloudy Moderate dew
Mostly cloudy

(Feels like: 6°C)
SSE
12 mph SSE 3 Bft
Gentle breeze
1.60 mm - 9°C 994.9 hPa 100 %- 72 % 11 miles
Period Forecast Temperature Wind Precipitation Lightning Dewpoint Pressure Humidity UV Clouds Zicht
00 - 01 Mostly cloudy Heavy dew
Mostly cloudy

(Feels like: 6°C)
SSE
11 mph SSE 3 Bft
Gentle breeze
- - 9°C 994.2 hPa 100 %- 77 % 10 miles
01 - 02 Cloudy Drizzle
Cloudy
Drizzle

(Feels like: 6°C)
SSE
11 mph SSE 3 Bft
Gentle breeze
0.02 mm - 9°C 994.2 hPa 99 %- 95 % 10 miles
02 - 03 Overcast Chance Rain Showers
Overcast
Chance Rain Showers

(Feels like: 7°C)
SSE
10 mph SSE 3 Bft
Gentle breeze
0.12 mm 8% 9°C 994.1 hPa 98 %- 100 % 12 miles
03 - 04 Overcast Probably showers
Overcast
Probably showers

(Feels like: 7°C)
SSE
10 mph SSE 3 Bft
Gentle breeze
- 16% 9°C 994.0 hPa 97 %- 100 % 12 miles
04 - 05 Overcast Light rain
Overcast
Light rain
10°
(Feels like: 7°C)
SSE
10 mph SSE 3 Bft
Gentle breeze
0.09 mm 13% 9°C 993.9 hPa 96 %- 100 % 10 miles

WXSIM script (v4.11) from Leuven-Template.eu.   Forecast is created from data by WXSIM.   Graphs are drawn using Highcharts
Thanks for the scripts, code-snippets and ideas go to: Ken True from SaratogaWeather; Rob from WellingtonWeather; HENKKA from NordicWeather.

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