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Updated: Wednesday 30 April 2025 - 06:23 
Next update: Wednesday 30 April 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 Thursday Thursday
night		 Friday Friday
night		 Saturday Saturday
night
skc nskc bkn nsct bkn nbknfg bkn nbkn
Sunny Clear Mostly Cloudy Partly Cloudy Mostly Cloudy Fog late Mostly Cloudy Mostly Cloudy
- - <2 mm (10%) - <2 mm (30%) - <2 mm (10%) <2 mm (30%)
Hi: 23° Lo: 6° Hi: 25° Lo: 8° Hi: 18° Lo: 7° Hi: 16° Lo: 7°
E
1.8641 mph E		 ESE
1.8641 mph ESE		 SE
3.7282 mph SE		 S
2.4855 mph S		 NW
1.8641 mph NW		 NE
2.4855 mph NE		 NNE
1.8641 mph NNE		 NE
5.5923 mph NE
 UV 6 High   UV 5 Medium  UV 3 Medium UV 3 Medium
skcTodaySunny. High 23°. UV index up to 6. Wind east around 3 mph.
nskcTonightClear. Low 6°. Wind east-southeast around 3 mph.
bknThursdayPartly to mostly sunny in the morning, becoming partly to mostly cloudy in the afternoon. A slight chance of rain in the afternoon. High 25°. UV index up to 5. Wind southeast around 3 mph in the morning, becoming south around 6 mph in the afternoon. Chance of precipitation less than 20 percent. Precipitation mostly less than 2 mm.
nsctThursday
night		Partly cloudy in the evening, becoming fair after midnight. Low 8°. Wind south around 4 mph in the evening, becoming southwest after midnight.
bknFridayMostly cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. A chance of rain. High 18°. UV index up to 3. Wind northwest around 3 mph in the morning, becoming north in the afternoon. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
nbknfgFriday
night		Mostly cloudy in the evening, becoming partly cloudy after midnight. Patchy light fog after midnight. Low 7°. Wind northeast around 4 mph.
bknSaturdayMostly cloudy to cloudy in the morning, becoming cloudy in the afternoon. A slight chance of rain in the afternoon. High 16°. UV index up to 3. Wind north-northeast around 3 mph. Chance of precipitation less than 20 percent. Precipitation mostly less than 2 mm.
nbknSaturday
night		Cloudy in the evening, becoming mostly cloudy to cloudy after midnight. A slight chance of rain in the evening. Low 7°. Wind northeast around 9 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm.
sctSundayMostly cloudy in the morning, becoming partly cloudy in the afternoon. A slight chance of rain. High 14°. UV index up to 5. Wind northeast around 13 mph, gusting to 23 mph. Chance of precipitation less than 20 percent. Precipitation mostly less than 2 mm.
nraSunday
night		Cloudy in the evening, becoming mostly cloudy to cloudy after midnight. A chance of rain. Low 6°. Wind north-northeast around 10 mph, gusting to 21 mph. Chance of precipitation 40 percent. Precipitation mostly around 2 mm.
bknMondayMostly cloudy in the morning, becoming cloudy in the afternoon. A slight chance of rain. High 12°. UV index up to 2. Wind north around 12 mph, gusting to 21 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
nbknMonday
night		Mostly cloudy in the evening, becoming clear after midnight. A slight chance of rain. Low 3°. Wind north-northwest around 5 mph, gusting to 17 mph. Chance of precipitation less than 20 percent. Precipitation mostly less than 2 mm.
sctTuesdayPartly cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. A slight chance of rain in the afternoon. High 16°. UV index up to 4. Wind northwest around 7 mph, gusting to 16 mph. Chance of precipitation 20 percent. Precipitation mostly less than 2 mm.
nbknTuesday
night		Mostly cloudy to cloudy in the evening, becoming cloudy after midnight. A slight chance of rain. Low 8°. Wind northwest around 5 mph. Chance of precipitation less than 20 percent. Precipitation mostly less than 2 mm.
 Wednesday 30 April 2025 sunrise  05:33 BST   sunset  20:23 BST   Daylength: 14:49 
Period Forecast Temperature Wind Precipitation Pressure UV
Morning
06 - 12		 Clear Clear Clear 6° - 19° North ENE 3 mph
Gust up to 7 mph
1 Bft Light air		 - 1023 hPa uv
Medium (4.4)
Afternoon
12 - 18		 Clear Clear 20° - 23° ENE ESE 5 mph
Gust up to 11 mph
2 Bft Light breeze		 - 1022 hPa uv
High (5.7)
Evening
18 - 00		 Clear Clear Clear 22° - 11° ESE 6 mph
Gust up to 10 mph
2 Bft Light breeze		 - 1021 hPa uv
Low (0.6)
 Thursday 01 May 2025 sunrise  05:32 BST   sunset  20:24 BST   Daylength: 14:53 
Period Forecast Temperature Wind Precipitation Pressure UV
Night
00 - 06		 Clear Heavy dew Clear 10° - 7° ESE 3 mph
1 Bft Light air		 - 1020 hPa-
Morning
06 - 12		 Clear Heavy dewMostly cloudy Mostly clear - Mostly cloudy 6° - 20° ESE 4 mph
Gust up to 8 mph
1 Bft Light air		 - 1019 hPa uv
Medium (3.7)
Afternoon
12 - 18		 Partly cloudy Mostly cloudy Drizzle Mostly cloudy
Drizzle		 21° - 25° South 7 mph
Gust up to 13 mph
2 Bft Light breeze		 - 1016 hPa uv
Medium (5.3)
Evening
18 - 00		 Partly cloudy Partly cloudy Partly cloudy 22° - 13° South 7 mph
Gust up to 12 mph
2 Bft Light breeze		 0.04 mm 1015 hPa uv
Low (0.5)
 Friday 02 May 2025 sunrise  05:30 BST   sunset  20:26 BST   Daylength: 14:56 
Period Forecast Temperature Wind Precipitation Pressure UV
Night
00 - 06		 Mostly clear Heavy dewPartly cloudy Heavy dew Mostly clear - Partly cloudy 12° - 8° SW 5 mph
2 Bft Light breeze		 - 1015 hPa-
Morning
06 - 12		 Partly cloudy Heavy dewCloudy Light rain Cloudy
Light rain		 8° - 17° SW NNW 3 mph
Gust up to 7 mph
1 Bft Light air		 0.14 mm 1016 hPa uv
Low (2.3)
Afternoon
12 - 18		 Cloudy Cloudy Drizzle Cloudy
Drizzle		 15° - 19° NNW 5 mph
Gust up to 9 mph
2 Bft Light breeze		 0.78 mm 1015 hPa uv
Medium (3.3)
Evening
18 - 00		 Partly cloudy Moderate dewCloudy Partly cloudy 17° - 11° NE 7 mph
2 Bft Light breeze		 0.12 mm 1016 hPa-
 Saturday 03 May 2025 sunrise  05:28 BST   sunset  20:28 BST   Daylength: 14:60 
Period Forecast Temperature Wind Precipitation Pressure UV
Night
00 - 06		 Partly cloudy Heavy dewMostly cloudy Light fog Mostly cloudy
Light fog		 11° - 8° NE 5 mph
2 Bft Light breeze		 - 1016 hPa-
Morning
06 - 12		 Mostly cloudy Light fogCloudy Cloudy
Light fog		 7° - 14° NE 4 mph
Gust up to 8 mph
1 Bft Light air		 - 1014 hPa uv
Low (2.3)
Afternoon
12 - 18		 Overcast Overcast Drizzle Cloudy - Overcast
Drizzle		 16° NNW NE 5 mph
Gust up to 10 mph
2 Bft Light breeze		 0.03 mm 1013 hPa uv
Medium (3)
Evening
18 - 00		 Cloudy Light dewCloudy Light rain Overcast - Cloudy
Light rain		 15° - 10° NE 5 - 9 mph
Gust up to 14 mph
3 Bft Gentle breeze		 0.84 mm 1014 hPa-
 Sunday 04 May 2025 sunrise  05:26 BST   sunset  20:29 BST   Daylength: 15:03 
Period Forecast Temperature Wind Precipitation Pressure UV
Night
00 - 06		 Mostly cloudy Moderate dewMostly cloudy Moderate dew Mostly cloudy 10° NE 10 mph
Gust up to 15 mph
3 Bft Gentle breeze		 - 1015 hPa-
Morning
06 - 12		 Partly cloudy Cloudy Moderate dew Partly cloudy
Drizzle		 7° - 11° NE 9 - 14 mph
Gust up to 21 mph
4 Bft Moderate breeze		 0.09 mm 1016 hPa uv
Medium (3.3)
Afternoon
12 - 18		 Partly cloudy Mostly cloudy Drizzle Mostly cloudy
Drizzle		 14° NE 15 mph
Gust up to 23 mph
4 Bft Moderate breeze		 0.01 mm 1017 hPa uv
Medium (4.5)
Evening
18 - 00		 Cloudy Cloudy Drizzle Cloudy
Light rain - Drizzle		 14° - 8° NE 9 - 13 mph
Gust up to 21 mph
4 Bft Moderate breeze		 0.85 mm 1019 hPa-
 Monday 05 May 2025 sunrise  05:24 BST   sunset  20:31 BST   Daylength: 15:07 
Period Forecast Temperature Wind Precipitation Pressure UV
Night
00 - 06		 Mostly cloudy DrizzleCloudy Light rain Mostly cloudy
Light rain - Drizzle		 8° NE North 11 mph
Gust up to 17 mph
3 Bft Gentle breeze		 1.17 mm 1020 hPa-
Morning
06 - 12		 Partly cloudy Moderate dewCloudy Drizzle Cloudy
Drizzle		 6° - 11° North 13 mph
Gust up to 21 mph
4 Bft Moderate breeze		 0.11 mm 1022 hPa uv
Low (1.9)
Afternoon
12 - 18		 Cloudy Cloudy Drizzle Cloudy
Drizzle		 12° North 14 mph
Gust up to 22 mph
4 Bft Moderate breeze		 0.19 mm 1022 hPa uv
Medium (2.5)
Evening
18 - 00		 Partly cloudy Cloudy Drizzle Partly cloudy
Drizzle		 11° - 7° North 5 - 11 mph
Gust up to 18 mph
3 Bft Gentle breeze		 0.36 mm 1023 hPa-
 Tuesday 06 May 2025 sunrise  05:22 BST   sunset  20:33 BST   Daylength: 15:10 
Period Forecast Temperature Wind Precipitation Pressure UV
Night
00 - 06		 Clear Heavy dewMostly clear Light dew Clear 7° - 4° North NW 5 mph
Gust up to 9 mph
2 Bft Light breeze		 - 1023 hPa-
Morning
06 - 12		 Clear Heavy dewMostly cloudy Drizzle Mostly clear - Mostly cloudy
Drizzle		 3° - 14° NW 7 mph
Gust up to 16 mph
2 Bft Light breeze		 0.01 mm 1022 hPa uv
Medium (2.9)
Afternoon
12 - 18		 Mostly cloudy Cloudy Drizzle Cloudy
Drizzle		 13° - 16° NW 9 mph
Gust up to 16 mph
3 Bft Gentle breeze		 0.41 mm 1019 hPa uv
Medium (3.7)
Evening
18 - 00		 Mostly cloudy Cloudy Drizzle Cloudy
Drizzle		 14° - 9° NW 3 - 8 mph
Gust up to 15 mph
2 Bft Light breeze		 0.06 mm 1019 hPa-
 Wednesday 07 May 2025 sunrise  05:21 BST   sunset  20:34 BST   Daylength: 15:13 
Period Forecast Temperature Wind Precipitation Pressure UV
Night
00 - 06		 Cloudy Light dewCloudy Drizzle Cloudy
Drizzle		 9° NW 5 mph
2 Bft Light breeze		 0.18 mm 1019 hPa-
Morning
06 - 07		 Cloudy Light dew Cloudy 8° NW 5 mph
2 Bft Light breeze		 0.02 mm 1019 hPa-
 Wednesday 30 April 2025 sunrise  05:33 BST   sunset  20:23 BST   Daylength: 14:49 
Period Forecast Temperature Wind Precipitation Lightning Dewpoint Pressure Humidity UV Clouds Zicht
06 - 07 Clear Moderate dew
Clear		 6° North
2 mph North 1 Bft
Light air		 - - 4°C 1023.0 hPa 87 %- 14 % 13 miles
07 - 08 Clear Light dew
Clear		 8° ENE
3 mph ENE 1 Bft
Light air		 - - 5°C 1023.5 hPa 80 %- 27 % 13 miles
08 - 09 Clear
Clear		 11° ENE
3 mph ENE 1 Bft
Light air		 - - 6°C 1023.5 hPa 69 % uv
Low (0.8)		 25 % 13 miles
09 - 10 Clear
Clear		 14° ENE
3 mph ENE 1 Bft
Light air		 - - 6°C 1023.5 hPa 59 % uv
Low (1.6)		 24 % 13 miles
10 - 11 Clear
Clear		 17° ENE
3 mph ENE 1 Bft
Light air		 - - 6°C 1023.5 hPa 51 % uv
Medium (3)		 22 % 13 miles
11 - 12 Clear
Clear		 19° ENE
3 mph ENE 1 Bft
Light air		 - - 7°C 1023.5 hPa 45 % uv
Medium (4.4)		 20 % 13 miles
12 - 13 Clear
Clear		 20° ENE
3 mph ENE 1 Bft
Light air		 - - 7°C 1023.2 hPa 41 % uv
Medium (5.4)		 19 % 13 miles
13 - 14 Clear
Clear		 22° ENE
4 mph ENE 1 Bft
Light air		 - - 7°C 1022.5 hPa 38 % uv
High (5.7)		 17 % 13 miles
14 - 15 Clear
Clear		 22° ENE
4 mph ENE 1 Bft
Light air		 - - 7°C 1021.7 hPa 36 % uv
Medium (5.3)		 14 % 13 miles
15 - 16 Clear
Clear		 23° ESE
4 mph ESE 1 Bft
Light air		 - - 7°C 1021.0 hPa 36 % uv
Medium (4.2)		 10 % 13 miles
16 - 17 Clear
Clear		 23° ESE
4 mph ESE 1 Bft
Light air		 - - 7°C 1020.6 hPa 36 % uv
Medium (2.8)		 9 % 13 miles
17 - 18 Clear
Clear		 22° ESE
4 mph ESE 1 Bft
Light air		 - - 7°C 1020.3 hPa 37 % uv
Low (1.4)		 9 % 13 miles
18 - 19 Clear
Clear		 21° ESE
5 mph ESE 2 Bft
Light breeze		 - - 7°C 1020.2 hPa 40 % uv
Low (0.6)		 10 % 13 miles
19 - 20 Clear
Clear		 19° ESE
5 mph ESE 2 Bft
Light breeze		 - - 7°C 1020.2 hPa 45 %- 10 % 13 miles
20 - 21 Clear
Clear		 17° ESE
5 mph ESE 2 Bft
Light breeze		 - - 7°C 1020.7 hPa 53 %- 7 % 13 miles
21 - 22 Clear
Clear		 14° ESE
4 mph ESE 1 Bft
Light air		 - - 7°C 1021.0 hPa 63 %- 5 % 13 miles
22 - 23 Clear
Clear		 12° ESE
4 mph ESE 1 Bft
Light air		 - - 8°C 1021.1 hPa 72 %- 4 % 13 miles
23 - 00 Clear
Clear		 11° ESE
3 mph ESE 1 Bft
Light air		 - - 7°C 1021.1 hPa 78 %- 3 % 13 miles
 Thursday 01 May 2025 sunrise  05:32 BST   sunset  20:24 BST   Daylength: 14:53 
Period Forecast Temperature Wind Precipitation Lightning Dewpoint Pressure Humidity UV Clouds Zicht
00 - 01 Clear
Clear		 10° ESE
3 mph ESE 1 Bft
Light air		 - - 7°C 1021.1 hPa 81 %- 2 % 13 miles
01 - 02 Clear Light dew
Clear		 9° ESE
3 mph ESE 1 Bft
Light air		 - - 7°C 1021.0 hPa 84 %- 1 % 13 miles
02 - 03 Clear Moderate dew
Clear		 9° ESE
2 mph ESE 1 Bft
Light air		 - - 6°C 1020.7 hPa 85 %- 1 % 13 miles
03 - 04 Clear Moderate dew
Clear		 8° ESE
2 mph ESE 1 Bft
Light air		 - - 6°C 1020.3 hPa 86 %- 1 % 13 miles
04 - 05 Clear Heavy dew
Clear		 8° ESE
2 mph ESE 1 Bft
Light air		 - - 6°C 1019.9 hPa 87 %- 1 % 13 miles
05 - 06 Clear Heavy dew
Clear		 7° ESE
2 mph ESE 1 Bft
Light air		 - - 5°C 1019.5 hPa 88 %- 2 % 13 miles
06 - 07 Clear Heavy dew
Clear		 7° ESE
2 mph ESE 1 Bft
Light air		 - - 5°C 1019.3 hPa 89 %- 3 % 13 miles
07 - 08 Clear Heavy dew
Clear		 9° ESE
2 mph ESE 1 Bft
Light air		 - - 6°C 1019.2 hPa 83 %- 9 % 13 miles
08 - 09 Clear
Clear		 12° ESE
2 mph ESE 1 Bft
Light air		 - - 7°C 1019.0 hPa 72 % uv
Low (0.8)		 23 % 13 miles
09 - 10 Mostly clear
Mostly clear		 15° ESE
2 mph ESE 1 Bft
Light air		 - - 8°C 1018.8 hPa 62 % uv
Low (1.6)		 36 % 13 miles
10 - 11 Partly cloudy
Partly cloudy		 18° ESE
3 mph ESE 1 Bft
Light air		 - - 8°C 1018.6 hPa 54 % uv
Medium (2.9)		 47 % 13 miles
11 - 12 Mostly cloudy
Mostly cloudy		 20° ESE
4 mph ESE 1 Bft
Light air		 - - 8°C 1018.4 hPa 48 % uv
Medium (3.7)		 72 % 13 miles
12 - 13 Partly cloudy
Partly cloudy		 21° South
5 mph South 2 Bft
Light breeze		 - - 9°C 1017.9 hPa 44 % uv
Medium (5.1)		 64 % 13 miles
13 - 14 Partly cloudy
Partly cloudy		 23° South
6 mph South 2 Bft
Light breeze		 - 2% 9°C 1017.1 hPa 40 % uv
Medium (5.3)		 71 % 13 miles
14 - 15 Mostly cloudy
Mostly cloudy		 24° South
6 mph South 2 Bft
Light breeze		 - 12% 9°C 1016.3 hPa 38 % uv
Medium (4.3)		 85 % 13 miles
15 - 16 Partly cloudy
Partly cloudy		 24° South
7 mph South 2 Bft
Light breeze		 - 11% 9°C 1015.8 hPa 38 % uv
Medium (3.8)		 82 % 13 miles
16 - 17 Partly cloudy
Partly cloudy		 24° South
7 mph South 2 Bft
Light breeze		 - 15% 9°C 1015.4 hPa 38 % uv
Low (2.4)		 87 % 13 miles
17 - 18 Mostly cloudy Drizzle
Mostly cloudy
Drizzle		 23° South
7 mph South 2 Bft
Light breeze		 - 26% 9°C 1014.8 hPa 39 % uv
Low (1.1)		 95 % 12 miles
18 - 19 Mostly cloudy
Mostly cloudy		 22° South
7 mph South 2 Bft
Light breeze		 0.04 mm 15% 9°C 1014.4 hPa 44 % uv
Low (0.5)		 96 % 13 miles
19 - 20 Mostly cloudy
Mostly cloudy		 20° South
6 mph South 2 Bft
Light breeze		 - 11% 9°C 1014.2 hPa 49 %- 97 % 13 miles
20 - 21 Mostly cloudy
Mostly cloudy		 18° South
6 mph South 2 Bft
Light breeze		 - 6% 9°C 1014.8 hPa 57 %- 96 % 13 miles
21 - 22 Partly cloudy
Partly cloudy		 16° South
5 mph South 2 Bft
Light breeze		 - - 9°C 1015.3 hPa 65 %- 87 % 13 miles
22 - 23 Partly cloudy
Partly cloudy		 14° South
4 mph South 1 Bft
Light air		 - - 9°C 1015.5 hPa 74 %- 75 % 13 miles
23 - 00 Partly cloudy
Partly cloudy		 13° South
4 mph South 1 Bft
Light air		 - - 9°C 1015.4 hPa 80 %- 53 % 13 miles
 Friday 02 May 2025 sunrise  05:30 BST   sunset  20:26 BST   Daylength: 14:56 
Period Forecast Temperature Wind Precipitation Lightning Dewpoint Pressure Humidity UV Clouds Zicht
00 - 01 Mostly clear
Mostly clear		 12° SW
4 mph SW 1 Bft
Light air		 - - 9°C 1015.4 hPa 83 %- 33 % 13 miles
01 - 02 Mostly clear Moderate dew
Mostly clear		 11° SW
4 mph SW 1 Bft
Light air		 - - 8°C 1015.4 hPa 86 %- 20 % 13 miles
02 - 03 Mostly clear Moderate dew
Mostly clear		 10° SW
4 mph SW 1 Bft
Light air		 - - 8°C 1015.2 hPa 87 %- 17 % 13 miles
03 - 04 Clear Heavy dew
Clear		 9° SW
4 mph SW 1 Bft
Light air		 - - 7°C 1015.0 hPa 88 %- 15 % 13 miles
04 - 05 Mostly clear Heavy dew
Mostly clear		 9° SW
4 mph SW 1 Bft
Light air		 - - 7°C 1014.8 hPa 89 %- 17 % 13 miles
05 - 06 Partly cloudy Heavy dew
Partly cloudy		 8° SW
3 mph SW 1 Bft
Light air		 - - 7°C 1014.8 hPa 89 %- 30 % 13 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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