Overcast morning, then clearing to partly cloudy later in the afternoon. High of 26 °C. Total rainfall 0.1 mm. Clear overnight with a low of 17 °C. Total rainfall 0.1 mm.

Interactive map weather England

GPS: 51.5784; -0.3321

altitude: 69 m
local time:

PLACES IN THE AREA

Weather forecast Harrow, England extended forecast

Time			Precip.	Wind	Pressure	Humidity	Dew	total	Fog	Low	Middle	High
Thursday 06/18/2026
12 AM 7 PM	partly cloudy	17 °C 18 °C	0.0 mm	3.3 m/s 12 km/h southwest	1019 hPa	90 %	15 °C	33 %	0%	18%	0%	17%
1 AM 8 PM	partly cloudy	17 °C 18 °C	0.0 mm	3.0 m/s 11 km/h southwest	1019 hPa	93 %	15 °C	36 %	0%	21%	0%	18%
2 AM 9 PM	overcast	16 °C 17 °C	0.0 mm	2.8 m/s 10 km/h southwest	1018 hPa	95 %	15 °C	93 %	0%	93%	0%	19%
3 AM 10 PM	overcast	16 °C 17 °C	0.0 mm	2.7 m/s 10 km/h southwest	1018 hPa	96 %	15 °C	100 %	0%	100%	0%	31%
4 AM 11 PM	overcast	16 °C 17 °C	0.0 mm	2.7 m/s 10 km/h southwest	1018 hPa	96 %	15 °C	100 %	0%	100%	0%	60%
5 AM 12 AM	overcast	16 °C 17 °C	0.0 mm	3.2 m/s 12 km/h southwest	1018 hPa	95 %	15 °C	100 %	0%	100%	0%	64%
6 AM 1 AM	overcast	16 °C 17 °C	0.0 mm	3.2 m/s 12 km/h southwest	1018 hPa	94 %	15 °C	100 %	0%	100%	0%	46%
7 AM 2 AM	overcast	17 °C 18 °C	0.0 mm	3.2 m/s 12 km/h southwest	1018 hPa	91 %	15 °C	100 %	0%	100%	0%	51%
8 AM 3 AM	overcast	18 °C 19 °C	0.0 mm	3.8 m/s 14 km/h southwest	1018 hPa	86 %	15 °C	100 %	0%	100%	0%	35%
9 AM 4 AM	overcast	19 °C 20 °C	0.0 mm	4.2 m/s 15 km/h southwest	1018 hPa	79 %	14 °C	98 %	0%	97%	0%	32%
10 AM 5 AM	overcast	20 °C 21 °C	0.0 mm	4.3 m/s 15 km/h southwest	1018 hPa	71 %	14 °C	97 %	0%	97%	0%	17%
11 AM 6 AM	cloudy	21 °C 21 °C	0.0 mm	4.3 m/s 15 km/h south-southwest	1018 hPa	63 %	14 °C	68 %	0%	18%	0%	60%
12 PM 7 AM	cloudy	23 °C 24 °C	0.0 mm	3.7 m/s 13 km/h south-southwest	1017 hPa	58 %	14 °C	74 %	0%	12%	0%	70%
1 PM 8 AM	cloudy	25 °C 25 °C	0.0 mm	4.5 m/s 16 km/h southwest	1016 hPa	51 %	14 °C	89 %	0%	56%	0%	76%
7 PM 2 PM	partly cloudy	25 °C 26 °C	0.0 mm	2.7 m/s 10 km/h south-southwest	1014 hPa	53 %	14 °C	24 %	0%	2%	0%	21%
Friday 06/19/2026
1 AM 8 PM	clear	18 °C 20 °C	0.1 mm	1.5 m/s 5 km/h south-southwest	1014 hPa	90 %	16 °C	0 %	0%	0%	0%	0%
7 AM 2 AM	cloudy	19 °C 21 °C	0.4 mm	0.7 m/s 3 km/h east-southeast	1012 hPa	83 %	16 °C	47 %	0%	14%	39%	10%
1 PM 8 AM	cloudy	28 °C 30 °C	0.1 mm	2.7 m/s 10 km/h southwest	1010 hPa	52 %	17 °C	68 %	0%	14%	29%	48%
7 PM 2 PM	cloudy	27 °C 28 °C	0.0 mm	4.6 m/s 17 km/h southwest	1011 hPa	49 %	15 °C	71 %	0%	0%	0%	71%

Harrow, England - information

State: England

GPS coordinates: 51.5784; -0.3321

Time zone: Europe / London time difference in hours with time in US is -1 hours

Population: 149 246
Altitude: 69 m
The administrative part:

England, West Ilsley
Greater London, London

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Weather Harrow, England. Weather forecast Harrow.

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Data source

Weather forecast for Harrow is supplied by MET Norway Norwegian Meteorological Institute and the NRK.

Feels like

To calculate the perceived temperature, we use the Australian Apparent Temperature (AAT) model, which is designed for year-round calculations and takes air humidity into account in addition to temperature and wind speed.

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Astronomical information Harrow

data are always in the local time

Sun and light

June 18, 2026

Sunrise:	Sunset:
4:42 am	9:22 pm
Noon:	Length of day:
1:02 pm	16:39
Start of civil twilight*:	End of civil twilight*:
3:53 am	10:11 pm
Start of nautical twilight*:	End of nautical twilight*:
2:40 am	11:24 pm
Start of astronomical twilight*:	End of astronomical twilight*:
does not occur	does not occur
* What is Twilight?

Moon and moon phases

Moonrise:	Moonset:
06/18/2026 8:32 am	06/19/2026 12:08 am
Next new moon:	Next full moon:
07/14/2026	06/29/2026

Weather Harrow long-term weather forecast

Interactive map weather England

Weather forecast Harrow, England extended forecast

Thursday 06/18/2026

Friday 06/19/2026