As of 19:38 BST

Weather in Chalfont St Giles

+25°

Chalfont St Giles, Saturday, 8 August, 19:38

Overcast. Feels like 25°C. High 27°C, low 10°C.

Pressure1016 mb

Wind1 mph S

Humidity38%

Visibility6.2 mi

Dew point10°C

Detailed hourly forecast

Sun, 09+14 ° /32 °

+32 °

Chalfont St Giles, Sunday, 9 August

Partly cloudy. High 32°C, low 14°C.

Pressure1013 mb

Wind5 mph W

Humidity22%

Visibility6.2 mi

Dew point5°C

Mon, 10+12 ° /26 °

+26 °

Chalfont St Giles, Monday, 10 August

Overcast. High 26°C, low 12°C.

Pressure1020 mb

Wind10 mph NW

Humidity42%

Visibility6.2 mi

Dew point10°C

Tue, 11+14 ° /26 °

+26 °

Chalfont St Giles, Tuesday, 11 August

Mainly clear. High 26°C, low 14°C.

Pressure1025 mb

Wind9 mph E

Humidity35%

Visibility6.2 mi

Dew point8°C

Wed, 12+16 ° /31 °

+31 °

Chalfont St Giles, Wednesday, 12 August

Clear sky. High 31°C, low 16°C.

Pressure1023 mb

Wind9 mph SE

Humidity22%

Visibility6.2 mi

Dew point4°C

Thu, 13+18 ° /37 °

+37 °

Chalfont St Giles, Thursday, 13 August

Clear sky. High 37°C, low 18°C.

Pressure1018 mb

Wind12 mph SW

Humidity13%

Visibility—

Dew point0°C

Fri, 14+19 ° /32 °

+32 °

Chalfont St Giles, Friday, 14 August

Overcast. High 32°C, low 19°C.

Pressure1015 mb

Wind13 mph NW

Humidity29%

Visibility—

Dew point9°C

Sat, 15+19 ° /29 °

+29 °

Chalfont St Giles, Saturday, 15 August

Overcast. High 29°C, low 19°C.

Pressure1015 mb

Wind14 mph NE

Humidity40%

Visibility—

Dew point11°C

Sun, 16+17 ° /28 °

+28 °

Chalfont St Giles, Sunday, 16 August

Overcast. High 28°C, low 17°C.

Pressure1013 mb

Wind12 mph W

Humidity43%

Visibility—

Dew point12°C

Mon, 17+16 ° /23 °

+23 °

Chalfont St Giles, Monday, 17 August

Overcast. High 23°C, low 16°C.

Pressure1011 mb

Wind16 mph NW

Humidity50%

Visibility—

Dew point11°C

Tue, 18+11 ° /19 °

0.1

+19 °

Chalfont St Giles, Tuesday, 18 August

Light rain. High 19°C, low 11°C.

Pressure1010 mb

Wind15 mph NW

Humidity53%

Visibility—

Dew point8°C

Wed, 19+11 ° /24 °

+24 °

Chalfont St Giles, Wednesday, 19 August

Overcast. High 24°C, low 11°C.

Pressure1012 mb

Wind11 mph NW

Humidity37%

Visibility—

Dew point6°C

Thu, 20+15 ° /24 °

+24 °

Chalfont St Giles, Thursday, 20 August

Light rain. High 24°C, low 15°C.

Pressure1006 mb

Wind17 mph W

Humidity89%

Visibility—

Dew point16°C

Fri, 21+11 ° /21 °

+21 °

Chalfont St Giles, Friday, 21 August

Partly cloudy. High 21°C, low 11°C.

Pressure1012 mb

Wind15 mph NW

Humidity37%

Visibility—

Dew point4°C

Sat, 22+13 ° /20 °

+20 °

Chalfont St Giles, Saturday, 22 August

Overcast. High 20°C, low 13°C.

Pressure1013 mb

Wind21 mph W

Humidity46%

Visibility—

Dew point8°C

Sun, 23+11 ° /21 °

+21 °

Chalfont St Giles, Sunday, 23 August

Overcast. High 21°C, low 11°C.

Pressure1020 mb

Wind17 mph NW

Humidity33%

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 Chalfont St Giles 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 Chalfont St Giles 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.