As of 19:59 BST

Weather in South Harefield

+25°

South Harefield, Saturday, 8 August, 19:59

Overcast. Feels like 25°C. High 27°C, low 11°C.

Pressure1016 mb

Wind1 mph SW

Humidity39%

Visibility6.2 mi

Dew point10°C

Detailed hourly forecast

Sun, 09+14 ° /32 °

+32 °

South Harefield, Sunday, 9 August

Overcast. High 32°C, low 14°C.

Pressure1013 mb

Wind2 mph SW

Humidity21%

Visibility6.2 mi

Dew point4°C

Mon, 10+12 ° /26 °

+26 °

South Harefield, Monday, 10 August

Overcast. High 26°C, low 12°C.

Pressure1020 mb

Wind9 mph NW

Humidity31%

Visibility6.2 mi

Dew point5°C

Tue, 11+16 ° /26 °

+26 °

South Harefield, Tuesday, 11 August

Mainly clear. High 26°C, low 16°C.

Pressure1025 mb

Wind9 mph E

Humidity35%

Visibility6.2 mi

Dew point8°C

Wed, 12+17 ° /31 °

+31 °

South Harefield, Wednesday, 12 August

Clear sky. High 31°C, low 17°C.

Pressure1023 mb

Wind8 mph SE

Humidity22%

Visibility6.2 mi

Dew point4°C

Thu, 13+19 ° /37 °

+37 °

South Harefield, Thursday, 13 August

Clear sky. High 37°C, low 19°C.

Pressure1018 mb

Wind10 mph S

Humidity12%

Visibility—

Dew point-1°C

Fri, 14+20 ° /32 °

+32 °

South Harefield, Friday, 14 August

Overcast. High 32°C, low 20°C.

Pressure1015 mb

Wind15 mph NW

Humidity29%

Visibility—

Dew point9°C

Sat, 15+21 ° /30 °

+30 °

South Harefield, Saturday, 15 August

Overcast. High 30°C, low 21°C.

Pressure1015 mb

Wind13 mph E

Humidity40%

Visibility—

Dew point12°C

Sun, 16+19 ° /29 °

+29 °

South Harefield, Sunday, 16 August

Overcast. High 29°C, low 19°C.

Pressure1013 mb

Wind12 mph W

Humidity43%

Visibility—

Dew point12°C

Mon, 17+17 ° /24 °

+24 °

South Harefield, Monday, 17 August

Overcast. High 24°C, low 17°C.

Pressure1011 mb

Wind15 mph NW

Humidity50%

Visibility—

Dew point11°C

Tue, 18+13 ° /20 °

+20 °

South Harefield, Tuesday, 18 August

Partly cloudy. High 20°C, low 13°C.

Pressure1010 mb

Wind16 mph NW

Humidity51%

Visibility—

Dew point8°C

Wed, 19+13 ° /24 °

+24 °

South Harefield, Wednesday, 19 August

Overcast. High 24°C, low 13°C.

Pressure1012 mb

Wind10 mph NW

Humidity36%

Visibility—

Dew point6°C

Thu, 20+16 ° /25 °

2.3

+25 °

South Harefield, Thursday, 20 August

Light rain. High 25°C, low 16°C.

Pressure1007 mb

Wind15 mph W

Humidity91%

Visibility—

Dew point16°C

Fri, 21+12 ° /21 °

+21 °

South Harefield, Friday, 21 August

Partly cloudy. High 21°C, low 12°C.

Pressure1012 mb

Wind15 mph NW

Humidity37%

Visibility—

Dew point4°C

Sat, 22+14 ° /20 °

+20 °

South Harefield, Saturday, 22 August

Overcast. High 20°C, low 14°C.

Pressure1013 mb

Wind18 mph W

Humidity46%

Visibility—

Dew point8°C

Sun, 23+12 ° /21 °

+21 °

South Harefield, Sunday, 23 August

Overcast. High 21°C, low 12°C.

Pressure1020 mb

Wind16 mph NW

Humidity34%

Visibility—

Dew point3°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 South Harefield 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 South Harefield 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.