Updated: Sunday 18 January 2026 - 14:23 
Next update: Sunday 18 January 2026 - 18:23 

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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This
afternoon
Tonight Monday Monday
night
Tuesday Tuesday
night
Wednesday Wednesday
night
bkn nbknfg bkn ncloudy bkn nra ra nra
Mostly Cloudy Fog late Mostly Cloudy Cloudy Mostly Cloudy Rain likely Chance rain Rain likely
<2 mm (20%) <2 mm (10%) <2 mm (20%) <2 mm (30%) <2 mm (30%) 7 mm (70%) 5 mm (60%) 5 mm (60%)
Hi: 10° Lo: Hi: Lo: Hi: Lo: Hi: Lo:
S
1.2427 mph S
ESE
1.8641 mph ESE
ESE
3.1069 mph ESE
SE
4.3496 mph SE
SSE
6.2137 mph SSE
SSE
6.8351 mph SSE
SSE
6.2137 mph SSE
SSE
6.8351 mph SSE
bknThis
afternoon
Mostly cloudy to cloudy. A slight chance of rain. High 10°. UV index up to 0. Wind south around 2 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
nbknfgTonightCloudy in the evening, becoming mostly cloudy after midnight. Patchy light fog after midnight. A slight chance of rain after midnight. Low 4°. Wind east-southeast around 3 mph. Chance of precipitation less than 20 percent. Precipitation mostly less than 2 mm.
bknMondayCloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. A slight chance of rain. High 9°. UV index up to 0. Wind east-southeast around 5 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
ncloudyMonday
night
Dense overcast in the evening, becoming cloudy after midnight. A chance of rain. Low 6°. Wind southeast around 7 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
bknTuesdayCloudy in the morning, becoming partly to mostly cloudy in the afternoon. A chance of rain. High 8°. UV index up to 0. Wind south-southeast around 10 mph, gusting to 17 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
nraTuesday
night
Cloudy. A chance of rain in the evening, then rain likely after midnight. Low 6°. Wind south-southeast around 11 mph, gusting to 18 mph. Chance of precipitation 70 percent. Precipitation mostly between 5 and 10 mm.
raWednesdayMostly cloudy in the morning, becoming dense overcast in the afternoon. Patchy light fog in the morning. A slight chance of rain in the morning, then a chance of rain in the afternoon. High 7°. UV index up to 0. Wind south-southeast around 7 mph in the morning, becoming 10 mph, gusting to 17 mph, in the afternoon. Chance of precipitation 60 percent. Precipitation mostly around 5 mm.
nraWednesday
night
Dense overcast in the evening, becoming partly to mostly cloudy after midnight. Patchy light fog after midnight. Rain likely in the evening, then a slight chance of rain after midnight. Low 6°. Wind south-southeast around 11 mph, gusting to 18 mph. Chance of precipitation 60 percent. Precipitation mostly around 5 mm.
sctfgThursdayPartly to mostly cloudy in the morning, becoming cloudy in the afternoon. Patchy light fog in the morning. A chance of rain. High 9°. UV index up to 0. Wind south-southeast around 9 mph, gusting to 16 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
nraThursday
night
Partly to mostly cloudy in the evening, becoming cloudy after midnight. Patchy light fog. A slight chance of rain in the evening, then a chance of rain after midnight. Low 6°. Wind south-southeast around 7 mph, gusting to 17 mph. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
raFridayCloudy in the morning, becoming partly to mostly sunny in the afternoon. Rain likely. High 8°. UV index up to 0. Wind southwest around 9 mph, gusting to 17 mph. Chance of precipitation 70 percent. Precipitation mostly between 5 and 10 mm.
nraFriday
night
Partly to mostly cloudy in the evening, becoming dense overcast after midnight. A slight chance of rain in the evening, then rain likely after midnight. Low 5°. Wind south around 7 mph. Chance of precipitation 80 percent. Precipitation mostly between 20 and 30 mm.
raSaturdayDense overcast. Patchy light fog in the morning. Rain likely in the morning, then a slight chance of rain in the afternoon. High 6°. UV index up to 0. Wind east-southeast around 6 mph. Chance of precipitation 80 percent. Precipitation mostly around 10 mm.
nfgSaturday
night
Dense overcast in the evening, becoming partly to mostly cloudy after midnight. Patchy light fog. Low 4°. Wind east-southeast around 7 mph.
Period Forecast Temperature Wind Precipitation Pressure UV
Afternoon
13 - 18
Cloudy Light dewCloudy Light rain Cloudy
Light rain
10° South ESE 4 mph
Gust up to 8 mph
1 Bft Light air
0.51 mm 1016 hPa-
Evening
18 - 00
Cloudy Moderate dewCloudy Light fog Cloudy
Light fog
ESE 4 mph
Gust up to 8 mph
1 Bft Light air
- 1016 hPa-
Period Forecast Temperature Wind Precipitation Pressure UV
Night
00 - 06
Mostly cloudy DrizzleCloudy Light fog Cloudy
Light fog - Drizzle
ESE 4 mph
1 Bft Light air
0.09 mm 1014 hPa-
Morning
06 - 12
Mostly cloudy Moderate dewCloudy Light rain Mostly cloudy
Drizzle - Light rain
- ESE 5 mph
2 Bft Light breeze
0.56 mm 1015 hPa-
Afternoon
12 - 18
Mostly cloudy Light dewCloudy Drizzle Cloudy - Overcast
Drizzle
ESE 7 mph
Gust up to 11 mph
2 Bft Light breeze
0.07 mm 1014 hPa-
Evening
18 - 00
Overcast Light dewCloudy Drizzle Overcast - Cloudy
Drizzle
ESE 7 mph
Gust up to 11 mph
2 Bft Light breeze
0.26 mm 1015 hPa-
Period Forecast Temperature Wind Precipitation Pressure UV
Night
00 - 06
Overcast Light dewOvercast Drizzle Overcast - Cloudy
Drizzle
ESE SSE 8 mph
Gust up to 12 mph
2 Bft Light breeze
0.54 mm 1013 hPa-
Morning
06 - 12
Cloudy Light dewCloudy Drizzle Overcast - Cloudy
Drizzle
SSE 7 - 11 mph
Gust up to 16 mph
3 Bft Gentle breeze
0.41 mm 1012 hPa-
Afternoon
12 - 18
Mostly cloudy Light dewCloudy Light dew Mostly cloudy
Light rain
SSE 12 mph
Gust up to 17 mph
3 Bft Gentle breeze
0.98 mm 1009 hPa-
Evening
18 - 00
Overcast Moderate dewOvercast Light rain Cloudy - Overcast
Drizzle - Light rain
SSE 13 mph
Gust up to 18 mph
4 Bft Moderate breeze
1.61 mm 1006 hPa-
Period Forecast Temperature Wind Precipitation Pressure UV
Night
00 - 06
Mostly cloudy Light fogOvercast Moderate rain Overcast - Mostly cloudy
Light rain - Chance drizzle - Light fog
SSE 8 - 13 mph
Gust up to 18 mph
4 Bft Moderate breeze
6.28 mm 1002 hPa-
Morning
06 - 12
Mostly cloudy DrizzleCloudy Light fog Cloudy
Light fog - Drizzle
SSE 5 - 9 mph
Gust up to 14 mph
3 Bft Gentle breeze
0.42 mm 998 hPa-
Afternoon
12 - 18
Overcast Light dewOvercast Moderate rain Overcast
Moderate rain - Chance drizzle
SSE 9 - 13 mph
Gust up to 18 mph
4 Bft Moderate breeze
4.05 mm 992 hPa-
Evening
18 - 00
Overcast Chance drizzle Overcast
Chance drizzle - Light rain
SSE 13 mph
Gust up to 18 mph
4 Bft Moderate breeze
4.17 mm 989 hPa-
Period Forecast Temperature Wind Precipitation Pressure UV
Night
00 - 06
Partly cloudy Light fogCloudy Drizzle Partly cloudy
Drizzle - Light fog
SSE 8 - 12 mph
Gust up to 16 mph
3 Bft Gentle breeze
0.21 mm 988 hPa-
Morning
06 - 12
Partly cloudy DrizzleMostly cloudy Chance Rain Showers Mostly cloudy
Light fog - Drizzle - Chance Rain Showers
SSE 7 - 11 mph
Gust up to 16 mph
3 Bft Gentle breeze
0.34 mm 990 hPa-
Afternoon
12 - 18
Cloudy Chance Rain Showers Cloudy
Chance Rain Showers - Drizzle
SSE 11 mph
Gust up to 17 mph
3 Bft Gentle breeze
0.26 mm 991 hPa-
Evening
18 - 00
Partly cloudy Heavy dewCloudy Chance Rain Showers Partly cloudy
Chance Rain Showers - Drizzle - Light fog
SSE 4 - 8 mph
Gust up to 13 mph
2 Bft Light breeze
0.23 mm 992 hPa-
Period Forecast Temperature Wind Precipitation Pressure UV
Night
00 - 06
Mostly cloudy Light fogCloudy Light fog Cloudy - Overcast
Light fog - Chance Rain Showers - Light rain
SSE 6 - 12 mph
Gust up to 17 mph
3 Bft Gentle breeze
1.4 mm 992 hPa-
Morning
06 - 12
Partly cloudy Heavy dewOvercast Moderate rain Overcast - Partly cloudy
Chance Rain Showers - Moderate rain - Drizzle
SSE SW 8 - 12 mph
Gust up to 18 mph
3 Bft Gentle breeze
7.42 mm 991 hPa-
Afternoon
12 - 18
Clear Moderate dewPartly cloudy Moderate dew Clear - Partly cloudy SW South 6 - 10 mph
Gust up to 16 mph
3 Bft Gentle breeze
- 995 hPa-
Evening
18 - 00
Mostly clear Heavy dewOvercast Chance Rain Showers Mostly clear - Cloudy - Overcast
Drizzle - Chance Rain Showers
South 6 - 10 mph
Gust up to 14 mph
3 Bft Gentle breeze
0.09 mm 997 hPa-
Period Forecast Temperature Wind Precipitation Pressure UV
Night
00 - 06
Overcast Chance Rain ShowersOvercast Heavy rain Overcast
Chance Rain Showers - Moderate rain
South ESE 2 - 10 mph
Gust up to 14 mph
3 Bft Gentle breeze
26.75 mm 998 hPa-
Morning
06 - 12
Overcast Chance drizzleOvercast Moderate rain Overcast
Chance Rain Showers - Moderate rain - Chance drizzle
ESE 4 - 8 mph
Gust up to 13 mph
2 Bft Light breeze
9.91 mm 1000 hPa-
Afternoon
12 - 18
Cloudy Moderate dewOvercast Chance drizzle Overcast - Cloudy
Chance drizzle
ESE 8 mph
Gust up to 14 mph
2 Bft Light breeze
0.59 mm 1002 hPa-
Evening
18 - 00
Overcast Chance drizzleCloudy Light fog Overcast - Cloudy
Chance drizzle - Light fog
ESE 7 mph
Gust up to 12 mph
2 Bft Light breeze
- 1004 hPa-
Period Forecast Temperature Wind Precipitation Pressure UV
Night
00 - 06
Mostly cloudy Light fogMostly cloudy Light fog Mostly cloudy
Light fog
ESE 8 mph
Gust up to 13 mph
2 Bft Light breeze
- 1007 hPa-
Morning
06 - 12
Overcast Moderate dewOvercast Drizzle Cloudy - Overcast
Drizzle
ESE 10 mph
Gust up to 17 mph
3 Bft Gentle breeze
0.02 mm 1010 hPa-
Afternoon
12 - 14
Overcast Moderate dew Overcast ESE 9 mph
Gust up to 15 mph
3 Bft Gentle breeze
- 1012 hPa-
Period Forecast Temperature Wind Precipitation Lightning Dewpoint Pressure Humidity UV Clouds Zicht
13 - 14 Mostly cloudy Light dew
Mostly cloudy
10° South
1 mph South 1 Bft
Light air
- - 9°C 1015.0 hPa 92 %- 87 % 9 miles
14 - 15 Cloudy
Cloudy
10° South
2 mph South 1 Bft
Light air
- - 8°C 1015.5 hPa 90 %- 90 % 9 miles
15 - 16 Cloudy
Cloudy
10° South
3 mph South 1 Bft
Light air
- - 8°C 1016.1 hPa 89 %- 94 % 9 miles
16 - 17 Cloudy Light rain
Cloudy
Light rain
South
3 mph South 1 Bft
Light air
0.08 mm - 8°C 1016.0 hPa 90 %- 94 % 7 miles
17 - 18 Cloudy Light dew
Cloudy
ESE
3 mph ESE 1 Bft
Light air
0.43 mm - 8°C 1016.0 hPa 94 %- 95 % 9 miles
18 - 19 Cloudy Light dew
Cloudy
ESE
4 mph ESE 1 Bft
Light air
- - 7°C 1016.0 hPa 97 %- 95 % 8 miles
19 - 20 Cloudy Moderate dew
Cloudy
ESE
4 mph ESE 1 Bft
Light air
- - 7°C 1016.0 hPa 99 %- 96 % 7 miles
20 - 21 Cloudy Light fog
Cloudy
Light fog
ESE
4 mph ESE 1 Bft
Light air
- - 7°C 1015.8 hPa 100 %- 98 % 6 miles
21 - 22 Cloudy Light fog
Cloudy
Light fog
ESE
4 mph ESE 1 Bft
Light air
- - 7°C 1015.5 hPa 100 %- 97 % 6 miles
22 - 23 Cloudy Light fog
Cloudy
Light fog
ESE
4 mph ESE 1 Bft
Light air
- - 6°C 1015.1 hPa 100 %- 91 % 6 miles
23 - 00 Cloudy Light fog
Cloudy
Light fog
ESE
3 mph ESE 1 Bft
Light air
- - 6°C 1014.8 hPa 100 %- 87 % 6 miles
Period Forecast Temperature Wind Precipitation Lightning Dewpoint Pressure Humidity UV Clouds Zicht
00 - 01 Cloudy Light fog
Cloudy
Light fog
ESE
4 mph ESE 1 Bft
Light air
- - 6°C 1014.6 hPa 100 %- 82 % 6 miles
01 - 02 Mostly cloudy Drizzle
Mostly cloudy
Drizzle
ESE
3 mph ESE 1 Bft
Light air
0.01 mm - 5°C 1014.5 hPa 100 %- 74 % 6 miles
02 - 03 Mostly cloudy Light fog
Mostly cloudy
Light fog
ESE
3 mph ESE 1 Bft
Light air
0.08 mm - 5°C 1014.4 hPa 100 %- 64 % 6 miles
03 - 04 Mostly cloudy Light fog
Mostly cloudy
Light fog
ESE
3 mph ESE 1 Bft
Light air
- - 5°C 1014.2 hPa 100 %- 65 % 6 miles
04 - 05 Mostly cloudy Light fog
Mostly cloudy
Light fog
ESE
3 mph ESE 1 Bft
Light air
- - 5°C 1014.0 hPa 100 %- 80 % 6 miles
05 - 06 Cloudy Light fog
Cloudy
Light fog
ESE
3 mph ESE 1 Bft
Light air
- - 5°C 1013.9 hPa 100 %- 90 % 7 miles
06 - 07 Cloudy Heavy dew
Cloudy
ESE
3 mph ESE 1 Bft
Light air
- - 5°C 1014.1 hPa 100 %- 94 % 7 miles
07 - 08 Cloudy Drizzle
Cloudy
Drizzle
ESE
3 mph ESE 1 Bft
Light air
0.01 mm - 5°C 1014.2 hPa 100 %- 94 % 7 miles
08 - 09 Cloudy Heavy dew
Cloudy
ESE
3 mph ESE 1 Bft
Light air
0.04 mm - 5°C 1014.5 hPa 100 %- 94 % 7 miles
09 - 10 Cloudy Heavy dew
Cloudy
ESE
4 mph ESE 1 Bft
Light air
- - 5°C 1014.8 hPa 99 %- 92 % 7 miles
10 - 11 Cloudy Light rain
Cloudy
Light rain

(Feels like: 4°C)
ESE
4 mph ESE 1 Bft
Light air
0.08 mm - 5°C 1015.1 hPa 95 %- 85 % 7 miles
11 - 12 Mostly cloudy Moderate dew
Mostly cloudy
ESE
5 mph ESE 2 Bft
Light breeze
0.43 mm - 5°C 1015.1 hPa 93 %- 77 % 9 miles
12 - 13 Mostly cloudy Light dew
Mostly cloudy
ESE
5 mph ESE 2 Bft
Light breeze
- - 5°C 1014.7 hPa 87 %- 73 % 9 miles
13 - 14 Mostly cloudy Drizzle
Mostly cloudy
Drizzle

(Feels like: 6°C)
ESE
6 mph ESE 2 Bft
Light breeze
0.01 mm - 5°C 1014.4 hPa 84 %- 82 % 9 miles
14 - 15 Cloudy
Cloudy
ESE
6 mph ESE 2 Bft
Light breeze
0.04 mm - 5°C 1014.1 hPa 82 %- 88 % 9 miles
15 - 16 Cloudy
Cloudy
ESE
6 mph ESE 2 Bft
Light breeze
- - 5°C 1014.1 hPa 82 %- 94 % 9 miles
16 - 17 Cloudy Drizzle
Cloudy
Drizzle

(Feels like: 6°C)
ESE
6 mph ESE 2 Bft
Light breeze
- - 5°C 1014.0 hPa 84 %- 97 % 9 miles
17 - 18 Overcast Light dew
Overcast
ESE
6 mph ESE 2 Bft
Light breeze
0.02 mm - 5°C 1014.2 hPa 86 %- 99 % 9 miles
18 - 19 Overcast Light dew
Overcast

(Feels like: 5°C)
ESE
6 mph ESE 2 Bft
Light breeze
- - 5°C 1014.4 hPa 87 %- 100 % 9 miles
19 - 20 Overcast Drizzle
Overcast
Drizzle

(Feels like: 5°C)
ESE
6 mph ESE 2 Bft
Light breeze
0.04 mm - 5°C 1014.7 hPa 88 %- 100 % 8 miles
20 - 21 Overcast Light dew
Overcast

(Feels like: 5°C)
ESE
6 mph ESE 2 Bft
Light breeze
0.17 mm - 5°C 1014.8 hPa 91 %- 99 % 9 miles
21 - 22 Cloudy Light dew
Cloudy
ESE
6 mph ESE 2 Bft
Light breeze
- - 5°C 1014.7 hPa 92 %- 99 % 9 miles
22 - 23 Cloudy Drizzle
Cloudy
Drizzle

(Feels like: 4°C)
ESE
7 mph ESE 2 Bft
Light breeze
0.01 mm - 5°C 1014.4 hPa 93 %- 99 % 9 miles
23 - 00 Overcast Light dew
Overcast

(Feels like: 4°C)
ESE
7 mph ESE 2 Bft
Light breeze
0.04 mm - 5°C 1014.2 hPa 94 %- 99 % 9 miles
Period Forecast Temperature Wind Precipitation Lightning Dewpoint Pressure Humidity UV Clouds Zicht
00 - 01 Overcast Light dew
Overcast

(Feels like: 4°C)
ESE
8 mph ESE 2 Bft
Light breeze
- - 5°C 1014.1 hPa 94 %- 99 % 9 miles
01 - 02 Cloudy Drizzle
Cloudy
Drizzle

(Feels like: 4°C)
ESE
8 mph ESE 2 Bft
Light breeze
0.03 mm - 5°C 1013.9 hPa 94 %- 98 % 9 miles
02 - 03 Cloudy Light dew
Cloudy

(Feels like: 4°C)
ESE
8 mph ESE 2 Bft
Light breeze
0.11 mm - 5°C 1013.6 hPa 96 %- 98 % 9 miles
03 - 04 Cloudy Light dew
Cloudy

(Feels like: 4°C)
ESE
8 mph ESE 2 Bft
Light breeze
- - 5°C 1013.3 hPa 96 %- 98 % 9 miles
04 - 05 Overcast Drizzle
Overcast
Drizzle

(Feels like: 4°C)
ESE
8 mph ESE 2 Bft
Light breeze
0.07 mm - 5°C 1012.9 hPa 96 %- 98 % 8 miles
05 - 06 Overcast Light dew
Overcast

(Feels like: 3°C)
SSE
7 mph SSE 2 Bft
Light breeze
0.33 mm - 6°C 1012.7 hPa 97 %- 99 % 9 miles
06 - 07 Overcast Light dew
Overcast

(Feels like: 3°C)
SSE
7 mph SSE 2 Bft
Light breeze
- - 6°C 1012.6 hPa 97 %- 99 % 9 miles
07 - 08 Cloudy Drizzle
Cloudy
Drizzle

(Feels like: 3°C)
SSE
8 mph SSE 2 Bft
Light breeze
0.06 mm - 6°C 1012.6 hPa 97 %- 98 % 7 miles
08 - 09 Cloudy Light dew
Cloudy

(Feels like: 3°C)
SSE
9 mph SSE 3 Bft
Gentle breeze
0.33 mm - 6°C 1012.6 hPa 99 %- 97 % 9 miles
09 - 10 Cloudy Light dew
Cloudy

(Feels like: 3°C)
SSE
9 mph SSE 3 Bft
Gentle breeze
- - 6°C 1012.6 hPa 98 %- 95 % 9 miles
10 - 11 Cloudy Drizzle
Cloudy
Drizzle

(Feels like: 3°C)
SSE
10 mph SSE 3 Bft
Gentle breeze
- - 6°C 1012.5 hPa 96 %- 92 % 9 miles
11 - 12 Cloudy Light dew
Cloudy

(Feels like: 4°C)
SSE
11 mph SSE 3 Bft
Gentle breeze
0.02 mm - 6°C 1011.9 hPa 94 %- 90 % 9 miles
12 - 13 Cloudy Light dew
Cloudy

(Feels like: 4°C)
SSE
11 mph SSE 3 Bft
Gentle breeze
- - 6°C 1011.2 hPa 92 %- 85 % 9 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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