As of 20:12 BST

Weather in Clapham Junction

+24°

Clapham Junction, Saturday, 8 August, 20:12

Overcast. Feels like 24°C. High 28°C, low 11°C.

Pressure1016 mb

Wind1 mph SW

Humidity37%

Visibility6.2 mi

Dew point8°C

Detailed hourly forecast

Sun, 09+15 ° /32 °

+32 °

Clapham Junction, Sunday, 9 August

Overcast. High 32°C, low 15°C.

Pressure1013 mb

Wind3 mph N

Humidity19%

Visibility6.2 mi

Dew point3°C

Mon, 10+13 ° /26 °

+26 °

Clapham Junction, Monday, 10 August

Overcast. High 26°C, low 13°C.

Pressure1020 mb

Wind8 mph NW

Humidity34%

Visibility6.2 mi

Dew point7°C

Tue, 11+17 ° /25 °

+25 °

Clapham Junction, Tuesday, 11 August

Mainly clear. High 25°C, low 17°C.

Pressure1025 mb

Wind10 mph E

Humidity35%

Visibility6.2 mi

Dew point8°C

Wed, 12+18 ° /30 °

+30 °

Clapham Junction, Wednesday, 12 August

Clear sky. High 30°C, low 18°C.

Pressure1023 mb

Wind7 mph E

Humidity20%

Visibility6.2 mi

Dew point3°C

Thu, 13+20 ° /37 °

+37 °

Clapham Junction, Thursday, 13 August

Clear sky. High 37°C, low 20°C.

Pressure1018 mb

Wind6 mph E

Humidity12%

Visibility—

Dew point0°C

Fri, 14+22 ° /33 °

+33 °

Clapham Junction, Friday, 14 August

Overcast. High 33°C, low 22°C.

Pressure1015 mb

Wind8 mph W

Humidity30%

Visibility—

Dew point10°C

Sat, 15+21 ° /29 °

+29 °

Clapham Junction, Saturday, 15 August

Overcast. High 29°C, low 21°C.

Pressure1015 mb

Wind11 mph E

Humidity41%

Visibility—

Dew point13°C

Sun, 16+19 ° /29 °

+29 °

Clapham Junction, Sunday, 16 August

Overcast. High 29°C, low 19°C.

Pressure1013 mb

Wind10 mph W

Humidity43%

Visibility—

Dew point13°C

Mon, 17+18 ° /25 °

+25 °

Clapham Junction, Monday, 17 August

Overcast. High 25°C, low 18°C.

Pressure1011 mb

Wind11 mph NW

Humidity49%

Visibility—

Dew point11°C

Tue, 18+15 ° /24 °

+24 °

Clapham Junction, Tuesday, 18 August

Partly cloudy. High 24°C, low 15°C.

Pressure1009 mb

Wind10 mph N

Humidity44%

Visibility—

Dew point8°C

Wed, 19+15 ° /24 °

+24 °

Clapham Junction, Wednesday, 19 August

Overcast. High 24°C, low 15°C.

Pressure1012 mb

Wind9 mph N

Humidity37%

Visibility—

Dew point7°C

Thu, 20+17 ° /24 °

2.5

+24 °

Clapham Junction, Thursday, 20 August

Light rain. High 24°C, low 17°C.

Pressure1007 mb

Wind10 mph SW

Humidity92%

Visibility—

Dew point16°C

Fri, 21+14 ° /23 °

+23 °

Clapham Junction, Friday, 21 August

Partly cloudy. High 23°C, low 14°C.

Pressure1013 mb

Wind13 mph NW

Humidity43%

Visibility—

Dew point6°C

Sat, 22+14 ° /20 °

0.1

+20 °

Clapham Junction, Saturday, 22 August

Light rain. High 20°C, low 14°C.

Pressure1013 mb

Wind13 mph W

Humidity50%

Visibility—

Dew point8°C

Sun, 23+13 ° /22 °

+22 °

Clapham Junction, Sunday, 23 August

Overcast. High 22°C, low 13°C.

Pressure1020 mb

Wind14 mph NW

Humidity37%

Visibility—

Dew point4°C

Questions about the month ahead

How accurate is a month-long forecast?

The first 16 days come from weather models — highly reliable for the first 3–5 days, gradually less so after that. Days 17 to 30 for Clapham Junction are built from climate averages over the last 60 years, so they show typical weather for those dates rather than a specific forecast.

What does "above average" mean?

We compare the forecast with the climate average for exactly the same calendar days, calculated from 60 years of observations. The difference shows how the coming month compares with a typical one.

Where do the 66-year records come from?

These are real historical extremes recorded in Clapham Junction since 1960: the highest and lowest temperature for each calendar date, with the year it happened.

How often is the 30-day forecast updated?

The forecast portion refreshes every hour. The climate portion is based on long-term data and stays stable.