As of 20:18 BST

Weather in London Colney

+25°

London Colney, Saturday, 8 August, 20:18

Overcast. Feels like 24°C. High 27°C, low 11°C.

Pressure1016 mb

Wind1 mph SW

Humidity40%

Visibility6.2 mi

Dew point9°C

Detailed hourly forecast

Sun, 09+14 ° /32 °

+32 °

London Colney, Sunday, 9 August

Overcast. High 32°C, low 14°C.

Pressure1013 mb

Wind4 mph SW

Humidity21%

Visibility6.2 mi

Dew point4°C

Mon, 10+12 ° /26 °

+26 °

London Colney, Monday, 10 August

Overcast. High 26°C, low 12°C.

Pressure1020 mb

Wind10 mph NW

Humidity30%

Visibility6.2 mi

Dew point4°C

Tue, 11+14 ° /26 °

+26 °

London Colney, Tuesday, 11 August

Clear sky. High 26°C, low 14°C.

Pressure1025 mb

Wind11 mph E

Humidity34%

Visibility6.2 mi

Dew point8°C

Wed, 12+15 ° /31 °

+31 °

London Colney, Wednesday, 12 August

Overcast. High 31°C, low 15°C.

Pressure1023 mb

Wind8 mph SE

Humidity22%

Visibility6.2 mi

Dew point4°C

Thu, 13+20 ° /37 °

+37 °

London Colney, Thursday, 13 August

Clear sky. High 37°C, low 20°C.

Pressure1019 mb

Wind12 mph SE

Humidity13%

Visibility—

Dew point1°C

Fri, 14+20 ° /33 °

+33 °

London Colney, Friday, 14 August

Overcast. High 33°C, low 20°C.

Pressure1015 mb

Wind13 mph W

Humidity31%

Visibility—

Dew point10°C

Sat, 15+18 ° /30 °

+30 °

London Colney, Saturday, 15 August

Overcast. High 30°C, low 18°C.

Pressure1014 mb

Wind15 mph N

Humidity37%

Visibility—

Dew point11°C

Sun, 16+18 ° /29 °

+29 °

London Colney, Sunday, 16 August

Overcast. High 29°C, low 18°C.

Pressure1013 mb

Wind10 mph W

Humidity44%

Visibility—

Dew point12°C

Mon, 17+17 ° /25 °

0.2

+25 °

London Colney, Monday, 17 August

Light rain. High 25°C, low 17°C.

Pressure1011 mb

Wind16 mph NW

Humidity54%

Visibility—

Dew point11°C

Tue, 18+12 ° /20 °

0.2

+20 °

London Colney, Tuesday, 18 August

Light rain. High 20°C, low 12°C.

Pressure1010 mb

Wind18 mph NW

Humidity54%

Visibility—

Dew point9°C

Wed, 19+12 ° /23 °

+23 °

London Colney, Wednesday, 19 August

Overcast. High 23°C, low 12°C.

Pressure1012 mb

Wind11 mph N

Humidity37%

Visibility—

Dew point6°C

Thu, 20+16 ° /25 °

2.3

+25 °

London Colney, Thursday, 20 August

Light rain. High 25°C, low 16°C.

Pressure1006 mb

Wind15 mph W

Humidity91%

Visibility—

Dew point16°C

Fri, 21+12 ° /21 °

+21 °

London Colney, Friday, 21 August

Partly cloudy. High 21°C, low 12°C.

Pressure1012 mb

Wind16 mph NW

Humidity39%

Visibility—

Dew point5°C

Sat, 22+13 ° /20 °

+20 °

London Colney, Saturday, 22 August

Overcast. High 20°C, low 13°C.

Pressure1013 mb

Wind19 mph W

Humidity46%

Visibility—

Dew point8°C

Sun, 23+11 ° /20 °

+20 °

London Colney, Sunday, 23 August

Overcast. High 20°C, low 11°C.

Pressure1020 mb

Wind19 mph NW

Humidity38%

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 London Colney 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 London Colney 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.