As of 16:59 BST

Weather in Harrow

+28°Weather now

Harrow, Saturday, 8 August, 16:59

Overcast. Feels like 27°C. High 28°C, low 10°C.

Pressure1017 mb
Wind2 mph W
Humidity33%
Visibility6.2 mi
Dew point10°C

Two-week forecast for Harrow: the first week averages +29.8° by day, the second +24.8° — so the second week runs 5° cooler than the first. Around 3 mm of rain is expected over the 14 days, on 1 wet days. The coming weekend starts 8 August: +28°, dry.

First and second week

WeekDayNightRainfallvs average
1st (8 August – 14 August)+29.8°+16°0 mm / 0 d—
2nd (15 August – 21 August)+24.8°+16.1°3 mm / 1 d—

Weekend weather

Sat, 8 August
Overcast
+28°+10°
dry
Sun, 9 August
Overcast
+32°+14°
dry
Sat, 15 August
Overcast
+29°+20°
dry
Sun, 16 August
Overcast
+29°+19°
dry
Sun, 09+14 ° /32 °0Overcast
+32 °Overcast

Harrow, Sunday, 9 August

Overcast. High 32°C, low 14°C.

Pressure1013 mb
Wind3 mph W
Humidity20%
Visibility6.2 mi
Dew point4°C
Mon, 10+14 ° /26 °0Overcast
+26 °Overcast

Harrow, Monday, 10 August

Overcast. High 26°C, low 14°C.

Pressure1020 mb
Wind8 mph NW
Humidity42%
Visibility6.2 mi
Dew point10°C
Tue, 11+16 ° /25 °0Mainly clear
+25 °Mainly clear

Harrow, Tuesday, 11 August

Mainly clear. High 25°C, low 16°C.

Pressure1025 mb
Wind9 mph E
Humidity36%
Visibility6.2 mi
Dew point8°C
Wed, 12+17 ° /29 °0Clear sky
+29 °Clear sky

Harrow, Wednesday, 12 August

Clear sky. High 29°C, low 17°C.

Pressure1023 mb
Wind7 mph E
Humidity22%
Visibility6.2 mi
Dew point4°C
Thu, 13+19 ° /36 °0Clear sky
+36 °Clear sky

Harrow, Thursday, 13 August

Clear sky. High 36°C, low 19°C.

Pressure1018 mb
Wind7 mph SE
Humidity12%
Visibility—
Dew point-1°C
Fri, 14+21 ° /32 °0Overcast
+32 °Overcast

Harrow, Friday, 14 August

Overcast. High 32°C, low 21°C.

Pressure1015 mb
Wind13 mph NW
Humidity30%
Visibility—
Dew point9°C
Sat, 15+20 ° /29 °0Overcast
+29 °Overcast

Harrow, Saturday, 15 August

Overcast. High 29°C, low 20°C.

Pressure1015 mb
Wind13 mph E
Humidity41%
Visibility—
Dew point12°C
Sun, 16+19 ° /29 °0Overcast
+29 °Overcast

Harrow, Sunday, 16 August

Overcast. High 29°C, low 19°C.

Pressure1013 mb
Wind11 mph W
Humidity43%
Visibility—
Dew point12°C
Mon, 17+17 ° /25 °0Overcast
+25 °Overcast

Harrow, Monday, 17 August

Overcast. High 25°C, low 17°C.

Pressure1011 mb
Wind13 mph NW
Humidity51%
Visibility—
Dew point11°C
Tue, 18+14 ° /22 °0Partly cloudy
+22 °Partly cloudy

Harrow, Tuesday, 18 August

Partly cloudy. High 22°C, low 14°C.

Pressure1010 mb
Wind14 mph NW
Humidity49%
Visibility—
Dew point8°C
Wed, 19+14 ° /23 °0Overcast
+23 °Overcast

Harrow, Wednesday, 19 August

Overcast. High 23°C, low 14°C.

Pressure1012 mb
Wind9 mph NW
Humidity36%
Visibility—
Dew point6°C
Thu, 20+16 ° /25 °2.6Light rain
+25 °Light rain

Harrow, Thursday, 20 August

Light rain. High 25°C, low 16°C.

Pressure1007 mb
Wind11 mph W
Humidity92%
Visibility—
Dew point16°C
Fri, 21+13 ° /21 °0Partly cloudy
+21 °Partly cloudy

Harrow, Friday, 21 August

Partly cloudy. High 21°C, low 13°C.

Pressure1012 mb
Wind14 mph NW
Humidity39%
Visibility—
Dew point4°C

Forecast questions

Can I plan a trip on a two-week forecast?

The first week is solid for planning. The second week shows the trend — go by the averages and the comparison with the climate normal, and check again closer to the date.

What does the "vs average" column mean?

It is the difference between the forecast and the climate average for the same dates in Harrow, calculated from 60 years of observations. A plus means the week is warmer than usual.

Why are weekends shown separately?

Saturday and Sunday plans are what people ask about most, so we break them out as separate cards with temperature and rainfall.