As of 16:17 BST

Weather in South Mimms

+28°

South Mimms, Saturday, 8 August, 16:17

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

Pressure1017 mb

Wind10 mph S

Humidity32%

Visibility6.2 mi

Dew point9°C

Detailed hourly forecast

Sun, 09+14 ° /32 °

+32 °

South Mimms, Sunday, 9 August

Overcast. High 32°C, low 14°C.

Pressure1013 mb

Wind4 mph W

Humidity21%

Visibility6.2 mi

Dew point4°C

Mon, 10+13 ° /26 °

+26 °

South Mimms, Monday, 10 August

Overcast. High 26°C, low 13°C.

Pressure1020 mb

Wind10 mph NW

Humidity42%

Visibility6.2 mi

Dew point10°C

Tue, 11+14 ° /25 °

+25 °

South Mimms, Tuesday, 11 August

Mainly clear. High 25°C, low 14°C.

Pressure1025 mb

Wind10 mph E

Humidity37%

Visibility6.2 mi

Dew point8°C

Wed, 12+15 ° /29 °

+29 °

South Mimms, Wednesday, 12 August

Clear sky. High 29°C, low 15°C.

Pressure1024 mb

Wind8 mph SE

Humidity24%

Visibility6.2 mi

Dew point5°C

Thu, 13+18 ° /36 °

+36 °

South Mimms, Thursday, 13 August

Clear sky. High 36°C, low 18°C.

Pressure1018 mb

Wind9 mph SE

Humidity13%

Visibility—

Dew point0°C

Fri, 14+20 ° /32 °

+32 °

South Mimms, Friday, 14 August

Overcast. High 32°C, low 20°C.

Pressure1015 mb

Wind15 mph NW

Humidity30%

Visibility—

Dew point10°C

Sat, 15+19 ° /29 °

+29 °

South Mimms, Saturday, 15 August

Overcast. High 29°C, low 19°C.

Pressure1015 mb

Wind13 mph E

Humidity41%

Visibility—

Dew point12°C

Sun, 16+18 ° /29 °

0.1

+29 °

South Mimms, Sunday, 16 August

Light rain. High 29°C, low 18°C.

Pressure1013 mb

Wind10 mph W

Humidity44%

Visibility—

Dew point12°C

Mon, 17+17 ° /25 °

0.2

+25 °

South Mimms, Monday, 17 August

Light rain. High 25°C, low 17°C.

Pressure1011 mb

Wind16 mph NW

Humidity54%

Visibility—

Dew point11°C

Tue, 18+13 ° /21 °

0.2

+21 °

South Mimms, Tuesday, 18 August

Light rain. High 21°C, low 13°C.

Pressure1010 mb

Wind17 mph NW

Humidity53%

Visibility—

Dew point9°C

Wed, 19+12 ° /23 °

+23 °

South Mimms, Wednesday, 19 August

Overcast. High 23°C, low 12°C.

Pressure1012 mb

Wind10 mph N

Humidity37%

Visibility—

Dew point6°C

Thu, 20+16 ° /25 °

2.4

+25 °

South Mimms, Thursday, 20 August

Light rain. High 25°C, low 16°C.

Pressure1007 mb

Wind14 mph W

Humidity92%

Visibility—

Dew point16°C

Fri, 21+12 ° /21 °

+21 °

South Mimms, Friday, 21 August

Partly cloudy. High 21°C, low 12°C.

Pressure1012 mb

Wind15 mph NW

Humidity39%

Visibility—

Dew point4°C

Sat, 22+13 ° /20 °

+20 °

South Mimms, Saturday, 22 August

Overcast. High 20°C, low 13°C.

Pressure1013 mb

Wind18 mph W

Humidity47%

Visibility—

Dew point8°C

Sun, 23+11 ° /20 °

+20 °

South Mimms, Sunday, 23 August

Overcast. High 20°C, low 11°C.

Pressure1020 mb

Wind19 mph NW

Humidity39%

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 South Mimms 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 Mimms 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.