Updated: Sunday 22 June 2025 - 06:23 
Next update: Sunday 22 June 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 Monday Monday
night
Tuesday Tuesday
night
Wednesday Wednesday
night
bkn nbkn bkn nsct sct nfew sct nra
Mostly Cloudy Mostly Cloudy Mostly Cloudy Partly Cloudy Partly Cloudy Mostly Clear Partly Cloudy Chance rain
<2 mm (10%) <2 mm (10%) - <2 mm (20%) <2 mm (10%) - <2 mm (10%) 5 mm (60%)
Hi: 25° Lo: 13° Hi: 22° Lo: 12° Hi: 26° Lo: 13° Hi: 27° Lo: 15°
WSW
8.6992 mph WSW
WSW
6.8351 mph WSW
W
7.4565 mph W
W
5.5923 mph W
SW
9.3206 mph SW
SW
6.2137 mph SW
SW
4.971 mph SW
WSW
3.7282 mph WSW
 UV 5 Medium   UV 7 High   UV 6 High   UV 5 Medium 
bknTodayPartly to mostly sunny in the morning, becoming mostly cloudy to cloudy in the afternoon. A slight chance of rain in the afternoon. High 25°. UV index up to 5. Wind west-southwest around 9 mph, gusting to 22 mph, in the morning, becoming 14 mph, gusting to 23 mph, in the afternoon. Chance of precipitation less than 20 percent. Precipitation mostly less than 2 mm.
nbknTonightMostly cloudy in the evening, becoming partly to mostly cloudy after midnight. A slight chance of rain. Low 13°. Wind west-southwest around 11 mph, gusting to 20 mph. Chance of precipitation less than 20 percent. Precipitation mostly less than 2 mm.
bknMondayPartly to mostly cloudy in the morning, becoming partly to mostly sunny in the afternoon. High 22°. UV index up to 7. Wind west around 12 mph, gusting to 21 mph.
nsctMonday
night
Fair to partly cloudy in the evening, becoming partly to mostly cloudy after midnight. A slight chance of rain after midnight. Low 12°. Wind west around 9 mph, gusting to 20 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
sctTuesdayMostly cloudy to cloudy in the morning, becoming partly cloudy in the afternoon. A slight chance of rain. High 26°. UV index up to 6. Wind southwest around 11 mph, gusting to 22 mph, in the morning, becoming 15 mph, gusting to 24 mph, in the afternoon. Chance of precipitation less than 20 percent. Precipitation mostly less than 2 mm.
nfewTuesday
night
Mostly clear in the evening, becoming fair after midnight. Low 13°. Wind southwest around 10 mph, gusting to 22 mph, in the evening, becoming 5 mph after midnight.
sctWednesdayPartly cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. A slight chance of rain in the afternoon. High 27°. UV index up to 5. Wind southwest around 4 mph in the morning, becoming 8 mph, gusting to 17 mph, in the afternoon. Chance of precipitation less than 20 percent. Precipitation mostly less than 2 mm.
nraWednesday
night
Mostly cloudy in the evening, becoming cloudy after midnight. A slight chance of rain in the evening, then a chance of rain after midnight. Low 15°. Wind west-southwest around 6 mph, gusting to 15 mph. Chance of precipitation 60 percent. Precipitation mostly around 5 mm.
sctThursdayPartly cloudy. A slight chance of rain. High 24°. UV index up to 6. Wind west-southwest around 13 mph, gusting to 24 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
nbknfgThursday
night
Fair to partly cloudy in the evening, becoming fair after midnight. Patchy light fog after midnight. Low 12°. Wind west-southwest around 10 mph, gusting to 21 mph, in the evening, becoming 6 mph after midnight.
sctFridayPartly cloudy in the morning, becoming mostly cloudy in the afternoon. High 25°. UV index up to 6. Wind southwest around 11 mph, gusting to 21 mph.
nsctFriday
night
Partly cloudy in the evening, becoming fair after midnight. Low 13°. Wind southwest around 6 mph, gusting to 15 mph.
raSaturdayPartly cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. A slight chance of rain in the morning, then a chance of rain in the afternoon. High 25°. UV index up to 5. Wind southwest around 10 mph, gusting to 19 mph. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
nbknSaturday
night
Mostly cloudy to cloudy in the evening, becoming cloudy after midnight. A slight chance of rain in the evening. Low 15°. Wind west around 8 mph, gusting to 15 mph, in the evening, becoming northwest around 4 mph after midnight. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
Period Forecast Temperature Wind Precipitation Pressure UV
Morning
06 - 12
Mostly clear Partly cloudy Partly cloudy - Mostly clear 16° - 25° WNW 1 - 12 mph
Gust up to 21 mph
3 Bft Gentle breeze
- 1014 hPa uv
Medium (4.8)
Afternoon
12 - 18
Mostly cloudy Cloudy Drizzle Cloudy
Drizzle - Chance Rain Showers
22° - 25° WSW 15 mph
Gust up to 23 mph
4 Bft Moderate breeze
0.22 mm 1013 hPa uv
Medium (5.3)
Evening
18 - 00
Mostly cloudy Light dewMostly cloudy Chance Rain Showers Mostly cloudy
Chance Rain Showers - Drizzle
22° - 16° WSW 9 - 14 mph
Gust up to 21 mph
4 Bft Moderate breeze
0.06 mm 1012 hPa uv
Low (0.8)
Period Forecast Temperature Wind Precipitation Pressure UV
Night
00 - 06
Mostly cloudy Heavy dewMostly cloudy Moderate dew Partly cloudy
Drizzle
16° - 13° WSW 13 mph
Gust up to 18 mph
4 Bft Moderate breeze
0.07 mm 1011 hPa-
Morning
06 - 12
Partly cloudy Heavy dewCloudy Light dew Mostly cloudy 13° - 18° WSW WNW 13 mph
Gust up to 21 mph
4 Bft Moderate breeze
0.08 mm 1013 hPa uv
Medium (4.5)
Afternoon
12 - 18
Mostly clear Partly cloudy Partly cloudy - Mostly clear 19° - 22° WNW 13 mph
Gust up to 21 mph
4 Bft Moderate breeze
- 1014 hPa uv
High (6.8)
Evening
18 - 00
Partly cloudy Partly cloudy Mostly clear - Partly cloudy 22° - 15° WNW 8 - 13 mph
Gust up to 20 mph
4 Bft Moderate breeze
- 1015 hPa uv
Low (1.1)
Period Forecast Temperature Wind Precipitation Pressure UV
Night
00 - 06
Partly cloudy Cloudy Light rain Cloudy
Drizzle - Light rain
14° WNW SW 9 mph
Gust up to 13 mph
3 Bft Gentle breeze
0.29 mm 1015 hPa-
Morning
06 - 12
Cloudy Mostly cloudy Drizzle Mostly cloudy
Drizzle
13° - 20° SW 8 - 14 mph
Gust up to 21 mph
4 Bft Moderate breeze
0.44 mm 1013 hPa uv
Medium (4)
Afternoon
12 - 18
Partly cloudy Mostly cloudy Partly cloudy 21° - 26° SW 16 mph
Gust up to 25 mph
4 Bft Moderate breeze
0.07 mm 1012 hPa uv
High (6)
Evening
18 - 00
Mostly clear Mostly clear Mostly clear 26° - 18° SW 7 - 14 mph
Gust up to 23 mph
4 Bft Moderate breeze
- 1012 hPa uv
Low (1.2)
Period Forecast Temperature Wind Precipitation Pressure UV
Night
00 - 06
Mostly clear Heavy dewPartly cloudy Heavy dew Mostly clear - Partly cloudy 17° - 14° SW 3 - 7 mph
Gust up to 11 mph
2 Bft Light breeze
- 1013 hPa-
Morning
06 - 12
Mostly cloudy Mostly cloudy 14° - 25° SW 5 mph
Gust up to 13 mph
2 Bft Light breeze
- 1013 hPa uv
Medium (4.7)
Afternoon
12 - 18
Cloudy Mostly cloudy Drizzle Mostly cloudy
Drizzle
27° SW 9 mph
Gust up to 17 mph
3 Bft Gentle breeze
0.02 mm 1010 hPa uv
Medium (4.9)
Evening
18 - 00
Partly cloudy Cloudy Drizzle Cloudy
Drizzle
25° - 18° WSW 8 mph
Gust up to 15 mph
2 Bft Light breeze
0.16 mm 1008 hPa uv
Low (1)
Period Forecast Temperature Wind Precipitation Pressure UV
Night
00 - 06
Cloudy Moderate dewOvercast Moderate rain Cloudy - Overcast
Moderate rain - Chance Rain Showers
17° WSW 8 mph
Gust up to 13 mph
2 Bft Light breeze
1.73 mm 1007 hPa-
Morning
06 - 12
Partly cloudy Light dewCloudy Light fog Partly cloudy
Light fog - Drizzle - Light rain
15° - 19° WSW 9 - 13 mph
Gust up to 20 mph
4 Bft Moderate breeze
3.91 mm 1009 hPa uv
Medium (4)
Afternoon
12 - 18
Mostly clear Mostly cloudy Mostly clear - Mostly cloudy 20° - 24° WSW 12 - 16 mph
Gust up to 24 mph
4 Bft Moderate breeze
0.26 mm 1012 hPa uv
High (6.4)
Evening
18 - 00
Clear Moderate dewPartly cloudy Partly cloudy - Clear 23° - 16° WSW 8 - 14 mph
Gust up to 22 mph
4 Bft Moderate breeze
- 1017 hPa uv
Low (0.9)
Period Forecast Temperature Wind Precipitation Pressure UV
Night
00 - 06
Clear Heavy dewPartly cloudy Light fog Mostly clear - Partly cloudy
Light fog
15° - 12° WSW 8 mph
Gust up to 13 mph
2 Bft Light breeze
- 1019 hPa-
Morning
06 - 12
Clear Light dewPartly cloudy Heavy dew Partly cloudy - Clear 12° - 21° SW 7 - 13 mph
Gust up to 20 mph
4 Bft Moderate breeze
- 1020 hPa uv
High (5.5)
Afternoon
12 - 18
Mostly cloudy Cloudy Mostly cloudy 22° - 25° SW 9 - 13 mph
Gust up to 22 mph
4 Bft Moderate breeze
- 1020 hPa uv
High (5.6)
Evening
18 - 00
Mostly clear Moderate dewMostly cloudy Partly cloudy - Mostly clear 25° - 17° SW 6 - 10 mph
Gust up to 16 mph
3 Bft Gentle breeze
- 1021 hPa uv
Low (0.9)
Period Forecast Temperature Wind Precipitation Pressure UV
Night
00 - 06
Mostly clear Heavy dewPartly cloudy Heavy dew Mostly clear - Partly cloudy 17° - 14° SW 6 mph
2 Bft Light breeze
- 1022 hPa-
Morning
06 - 12
Partly cloudy Mostly cloudy Drizzle Mostly cloudy
Drizzle
14° - 24° SW 6 - 11 mph
Gust up to 18 mph
3 Bft Gentle breeze
0.06 mm 1021 hPa uv
Medium (4.1)
Afternoon
12 - 18
Cloudy Cloudy Drizzle Cloudy
Light rain - Drizzle
22° - 25° SW 12 mph
Gust up to 19 mph
3 Bft Gentle breeze
1.37 mm 1020 hPa uv
Medium (4.4)
Evening
18 - 00
Mostly cloudy Cloudy Heavy dew Cloudy
Light rain
22° - 17° West 5 - 11 mph
Gust up to 16 mph
3 Bft Gentle breeze
1.3 mm 1021 hPa uv
Low (0.9)
Period Forecast Temperature Wind Precipitation Pressure UV
Night
00 - 06
Mostly cloudy Heavy dewCloudy Heavy dew Overcast - Mostly cloudy 17° West North 6 mph
2 Bft Light breeze
- 1023 hPa-
Morning
06 - 07
Partly cloudy Heavy dew Partly cloudy 16° North 4 mph
1 Bft Light air
- 1023 hPa-
Period Forecast Temperature Wind Precipitation Lightning Dewpoint Pressure Humidity UV Clouds Zicht
06 - 07 Partly cloudy Light dew
Partly cloudy
16° WNW
1 mph WNW 1 Bft
Light air
- - 13°C 1013.0 hPa 82 %- 32 % 13 miles
07 - 08 Mostly clear
Mostly clear
18° WNW
9 mph WNW 3 Bft
Gentle breeze
- - 13°C 1014.4 hPa 72 % uv
Low (0.5)
29 % 13 miles
08 - 09 Mostly clear
Mostly clear
20° WNW
9 mph WNW 3 Bft
Gentle breeze
- - 13°C 1014.3 hPa 65 % uv
Low (1.1)
27 % 13 miles
09 - 10 Mostly clear
Mostly clear
22° WNW
10 mph WNW 3 Bft
Gentle breeze
- - 13°C 1014.2 hPa 59 % uv
Low (2.3)
25 % 13 miles
10 - 11 Partly cloudy
Partly cloudy
23° WNW
11 mph WNW 3 Bft
Gentle breeze
- - 13°C 1014.2 hPa 54 % uv
Medium (3.7)
35 % 13 miles
11 - 12 Partly cloudy
Partly cloudy
24° WNW
12 mph WNW 3 Bft
Gentle breeze
- - 13°C 1014.1 hPa 50 % uv
Medium (4.8)
63 % 13 miles
12 - 13 Mostly cloudy
Mostly cloudy
25° WSW
13 mph WSW 4 Bft
Moderate breeze
- - 13°C 1013.7 hPa 49 % uv
Medium (5.3)
86 % 13 miles
13 - 14 Mostly cloudy
Mostly cloudy
24° WSW
14 mph WSW 4 Bft
Moderate breeze
- - 13°C 1013.1 hPa 50 % uv
Medium (5.1)
97 % 13 miles
14 - 15 Cloudy Drizzle
Cloudy
Drizzle
24° WSW
15 mph WSW 4 Bft
Moderate breeze
0.03 mm - 13°C 1012.6 hPa 53 % uv
Medium (4.2)
97 % 11 miles
15 - 16 Cloudy Chance Rain Showers
Cloudy
Chance Rain Showers
23° WSW
15 mph WSW 4 Bft
Moderate breeze
0.18 mm - 14°C 1012.3 hPa 58 % uv
Medium (3.4)
98 % 13 miles
16 - 17 Cloudy Chance Rain Showers
Cloudy
Chance Rain Showers
22° WSW
15 mph WSW 4 Bft
Moderate breeze
- 3% 14°C 1012.1 hPa 60 % uv
Low (2.3)
96 % 13 miles
17 - 18 Cloudy Drizzle
Cloudy
Drizzle
22° WSW
14 mph WSW 4 Bft
Moderate breeze
0.01 mm - 14°C 1011.8 hPa 62 % uv
Low (1.4)
90 % 12 miles
18 - 19 Mostly cloudy Chance Rain Showers
Mostly cloudy
Chance Rain Showers
21° WSW
13 mph WSW 4 Bft
Moderate breeze
0.04 mm - 14°C 1011.6 hPa 66 % uv
Low (0.8)
81 % 13 miles
19 - 20 Mostly cloudy Chance Rain Showers
Mostly cloudy
Chance Rain Showers
20° WSW
12 mph WSW 3 Bft
Gentle breeze
- - 14°C 1011.6 hPa 69 %- 75 % 13 miles
20 - 21 Mostly cloudy Drizzle
Mostly cloudy
Drizzle
19° WSW
11 mph WSW 3 Bft
Gentle breeze
- - 14°C 1011.9 hPa 74 %- 76 % 13 miles
21 - 22 Mostly cloudy
Mostly cloudy
18° WSW
10 mph WSW 3 Bft
Gentle breeze
0.02 mm - 14°C 1012.1 hPa 80 %- 78 % 13 miles
22 - 23 Mostly cloudy
Mostly cloudy
17° WSW
9 mph WSW 3 Bft
Gentle breeze
- - 14°C 1012.1 hPa 84 %- 79 % 13 miles
23 - 00 Mostly cloudy Light dew
Mostly cloudy
16° WSW
10 mph WSW 3 Bft
Gentle breeze
- - 14°C 1011.8 hPa 88 %- 79 % 13 miles
Period Forecast Temperature Wind Precipitation Lightning Dewpoint Pressure Humidity UV Clouds Zicht
00 - 01 Mostly cloudy Light dew
Mostly cloudy
15° WSW
11 mph WSW 3 Bft
Gentle breeze
- - 14°C 1011.6 hPa 90 %- 81 % 13 miles
01 - 02 Mostly cloudy Moderate dew
Mostly cloudy
15°
(Feels like: 13°C)
WSW
11 mph WSW 3 Bft
Gentle breeze
- - 14°C 1011.5 hPa 93 %- 82 % 13 miles
02 - 03 Mostly cloudy Drizzle
Mostly cloudy
Drizzle
14° WSW
12 mph WSW 3 Bft
Gentle breeze
0.01 mm - 13°C 1011.2 hPa 94 %- 76 % 12 miles
03 - 04 Mostly cloudy Heavy dew
Mostly cloudy
14°
(Feels like: 12°C)
WSW
12 mph WSW 3 Bft
Gentle breeze
0.05 mm - 13°C 1010.9 hPa 97 %- 69 % 12 miles
04 - 05 Mostly cloudy Heavy dew
Mostly cloudy
13° WSW
12 mph WSW 3 Bft
Gentle breeze
- - 13°C 1010.7 hPa 98 %- 60 % 11 miles
05 - 06 Partly cloudy Drizzle
Partly cloudy
Drizzle
13°
(Feels like: 11°C)
WSW
12 mph WSW 3 Bft
Gentle breeze
0.01 mm - 13°C 1011.2 hPa 99 %- 51 % 10 miles
06 - 07 Partly cloudy Heavy dew
Partly cloudy
13° WSW
12 mph WSW 3 Bft
Gentle breeze
0.08 mm - 13°C 1011.8 hPa 99 %- 33 % 11 miles
07 - 08 Partly cloudy Heavy dew
Partly cloudy
14°
(Feels like: 12°C)
WSW
12 mph WSW 3 Bft
Gentle breeze
- - 13°C 1012.5 hPa 98 %- 36 % 12 miles
08 - 09 Mostly cloudy Moderate dew
Mostly cloudy
14° WSW
12 mph WSW 3 Bft
Gentle breeze
- - 14°C 1013.0 hPa 95 % uv
Low (0.9)
64 % 13 miles
09 - 10 Mostly cloudy Light dew
Mostly cloudy
15° WNW
12 mph WNW 3 Bft
Gentle breeze
- - 14°C 1013.6 hPa 90 % uv
Low (1.7)
85 % 13 miles
10 - 11 Cloudy Light dew
Cloudy
16° WNW
12 mph WNW 3 Bft
Gentle breeze
- - 13°C 1014.2 hPa 83 % uv
Medium (2.7)
89 % 13 miles
11 - 12 Mostly cloudy
Mostly cloudy
17° WNW
12 mph WNW 3 Bft
Gentle breeze
- - 13°C 1014.7 hPa 74 % uv
Medium (4.5)
74 % 13 miles
12 - 13 Partly cloudy
Partly cloudy
19° WNW
12 mph WNW 3 Bft
Gentle breeze
- - 12°C 1014.9 hPa 66 % uv
High (6.1)
54 % 13 miles
13 - 14 Partly cloudy
Partly cloudy
20° WNW
12 mph WNW 3 Bft
Gentle breeze
- - 12°C 1014.7 hPa 60 % uv
High (6.8)
37 % 13 miles
14 - 15 Partly cloudy
Partly cloudy
21° WNW
13 mph WNW 3 Bft
Gentle breeze
- - 12°C 1014.4 hPa 57 % uv
High (6.5)
36 % 13 miles
15 - 16 Mostly clear
Mostly clear
21° WNW
13 mph WNW 3 Bft
Gentle breeze
- - 11°C 1014.1 hPa 54 % uv
Medium (5.4)
35 % 13 miles
16 - 17 Mostly clear
Mostly clear
21° WNW
13 mph WNW 3 Bft
Gentle breeze
- - 11°C 1014.1 hPa 52 % uv
Medium (3.9)
33 % 13 miles
17 - 18 Mostly clear
Mostly clear
21° WNW
13 mph WNW 3 Bft
Gentle breeze
- - 11°C 1014.1 hPa 51 % uv
Low (2.3)
30 % 13 miles
18 - 19 Mostly clear
Mostly clear
21° WNW
12 mph WNW 3 Bft
Gentle breeze
- - 11°C 1014.3 hPa 51 % uv
Low (1.1)
27 % 13 miles
19 - 20 Mostly clear
Mostly clear
21° WNW
12 mph WNW 3 Bft
Gentle breeze
- - 11°C 1014.6 hPa 52 % uv
Low (0.5)
31 % 13 miles
20 - 21 Partly cloudy
Partly cloudy
19° WNW
11 mph WNW 3 Bft
Gentle breeze
- - 10°C 1015.1 hPa 56 %- 49 % 13 miles
21 - 22 Partly cloudy
Partly cloudy
18° WNW
10 mph WNW 3 Bft
Gentle breeze
- - 10°C 1015.4 hPa 61 %- 69 % 13 miles
22 - 23 Partly cloudy
Partly cloudy
16° WNW
9 mph WNW 3 Bft
Gentle breeze
- - 10°C 1015.6 hPa 68 %- 75 % 13 miles
23 - 00 Partly cloudy
Partly cloudy
15° WNW
9 mph WNW 3 Bft
Gentle breeze
- - 10°C 1015.5 hPa 74 %- 59 % 13 miles
Period Forecast Temperature Wind Precipitation Lightning Dewpoint Pressure Humidity UV Clouds Zicht
00 - 01 Partly cloudy
Partly cloudy
14° WNW
8 mph WNW 3 Bft
Gentle breeze
- - 10°C 1015.5 hPa 78 %- 47 % 13 miles
01 - 02 Partly cloudy
Partly cloudy
13° WNW
8 mph WNW 3 Bft
Gentle breeze
- - 10°C 1015.4 hPa 81 %- 48 % 13 miles
02 - 03 Mostly cloudy Drizzle
Mostly cloudy
Drizzle
12° WNW
8 mph WNW 2 Bft
Light breeze
0.03 mm - 10°C 1015.0 hPa 83 %- 72 % 11 miles
03 - 04 Mostly cloudy Light dew
Mostly cloudy
12° SW
8 mph SW 2 Bft
Light breeze
0.17 mm - 10°C 1014.6 hPa 85 %- 73 % 13 miles
04 - 05 Mostly cloudy Light dew
Mostly cloudy
13° SW
8 mph SW 2 Bft
Light breeze
- - 10°C 1014.0 hPa 86 %- 82 % 13 miles
05 - 06 Cloudy Light rain
Cloudy
Light rain
13°
(Feels like: 11°C)
SW
8 mph SW 2 Bft
Light breeze
0.09 mm - 11°C 1013.5 hPa 87 %- 88 % 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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