As of 05:21 BST

Weather in Chalfont St Peter

+7°

Chalfont St Peter, Thursday, 8 October, 05:21

Clear sky. Feels like 4°C. High 12°C, low 7°C.

Pressure1018 mb

Wind9 mph NW

Humidity89%

Visibility6.2 mi

Dew point5°C

Detailed hourly forecast

The month ahead in Chalfont St Peter: daytime temperatures averaging +15.1° and +9.8° overnight — that is 0.9° above the climate average for October. Rain is expected on 5 days (around 22 mm), against a normal of 5 days and 33 mm. The warmest day should be 13 October (+19.6°), the coolest 8 October (+6.8°).

+15.1°/+9.8°

Average day / night

+0.9°

Above average

5 / 5

Wet days / normal

22 mm

Rainfall this month

Ten-day blocks against the climate average

Period	Forecast (day)	Average	Difference
8 October – 17 October	+15°	+14.6°	+0.4°
18 October – 27 October	+15.3°	+13.3°	+1.9°
28 October – 6 November	near average	+11.9°	—

October records over 66 years

+25.7°1 October 2011All-time high

-2.2°29 October 2008All-time low

Climate averages and records are calculated from the nearest reference point — Gerrards Cross (2.2 km away).

Fri, 09+8 ° /16 °

2.6

+16 °

Chalfont St Peter, Friday, 9 October

Light rain. High 16°C, low 8°C.

Pressure1012 mb

Wind19 mph SW

Humidity76%

Visibility6.2 mi

Dew point13°C

Sat, 10+9 ° /14 °

+14 °

Chalfont St Peter, Saturday, 10 October

Overcast. High 14°C, low 9°C.

Pressure1013 mb

Wind15 mph W

Humidity57%

Visibility6.2 mi

Dew point5°C

Sun, 11+7 ° /14 °

+14 °

Chalfont St Peter, Sunday, 11 October

Partly cloudy. High 14°C, low 7°C.

Pressure1015 mb

Wind9 mph NW

Humidity58%

Visibility6.2 mi

Dew point5°C

Mon, 12+7 ° /16 °

5.5

+16 °

Chalfont St Peter, Monday, 12 October

Rain. High 16°C, low 7°C.

Pressure1019 mb

Wind13 mph S

Humidity67%

Visibility—

Dew point9°C

Tue, 13+15 ° /20 °

0.2

+20 °

Chalfont St Peter, Tuesday, 13 October

Light rain. High 20°C, low 15°C.

Pressure1022 mb

Wind14 mph SW

Humidity86%

Visibility—

Dew point16°C

Wed, 14+8 ° /17 °

+17 °

Chalfont St Peter, Wednesday, 14 October

Mainly clear. High 17°C, low 8°C.

Pressure1023 mb

Wind6 mph SW

Humidity53%

Visibility—

Dew point5°C

Thu, 15+9 ° /14 °

+14 °

Chalfont St Peter, Thursday, 15 October

Overcast. High 14°C, low 9°C.

Pressure1013 mb

Wind18 mph N

Humidity70%

Visibility—

Dew point8°C

Fri, 16+9 ° /12 °

1.8

+12 °

Chalfont St Peter, Friday, 16 October

Light rain. High 12°C, low 9°C.

Pressure1019 mb

Wind19 mph N

Humidity70%

Visibility—

Dew point6°C

Sat, 17+9 ° /14 °

0.2

+14 °

Chalfont St Peter, Saturday, 17 October

Light rain. High 14°C, low 9°C.

Pressure1018 mb

Wind15 mph N

Humidity79%

Visibility—

Dew point9°C

Sun, 18+10 ° /12 °

6.2

+12 °

Chalfont St Peter, Sunday, 18 October

Light rain. High 12°C, low 10°C.

Pressure1019 mb

Wind8 mph SE

Humidity75%

Visibility—

Dew point7°C

Mon, 19+12 ° /16 °

5.1

+16 °

Chalfont St Peter, Monday, 19 October

Light rain. High 16°C, low 12°C.

Pressure1019 mb

Wind8 mph S

Humidity80%

Visibility—

Dew point12°C

Tue, 20+13 ° /15 °

+15 °

Chalfont St Peter, Tuesday, 20 October

Overcast. High 15°C, low 13°C.

Pressure1021 mb

Wind11 mph E

Humidity72%

Visibility—

Dew point10°C

Wed, 21+11 ° /17 °

+17 °

Chalfont St Peter, Wednesday, 21 October

Overcast. High 17°C, low 11°C.

Pressure1018 mb

Wind12 mph SE

Humidity60%

Visibility—

Dew point8°C

Thu, 22+12 ° /17 °

+17 °

Chalfont St Peter, Thursday, 22 October

Overcast. High 17°C, low 12°C.

Pressure1014 mb

Wind13 mph E

Humidity63%

Visibility—

Dew point9°C

Fri, 23+11 ° /15 °

+15 °

Chalfont St Peter, Friday, 23 October

Clear sky. High 15°C, low 11°C.

Pressure1017 mb

Wind14 mph E

Humidity55%

Visibility—

Dew point6°C

Days 17 onward are based on 60-year climate statistics

Sat, 24+8 ° /13 °

2.1

+13 °

Chalfont St Peter, Saturday, 24 October

Climate average for this date — the mean of the last 60 years.

Average high13°C

Average low8°C

Average rainfall2.1 mm

Chance of rain40%

Warmest on record+18° (2017)

Coldest on record0° (1964)

Sun, 25+8 ° /13 °

1.3

+13 °

Chalfont St Peter, Sunday, 25 October

Climate average for this date — the mean of the last 60 years.

Average high13°C

Average low8°C

Average rainfall1.3 mm

Chance of rain33%

Warmest on record+17° (2013)

Coldest on record+1° (1997)

Mon, 26+7 ° /13 °

1.2

+13 °

Chalfont St Peter, Monday, 26 October

Climate average for this date — the mean of the last 60 years.

Average high13°C

Average low7°C

Average rainfall1.2 mm

Chance of rain27%

Warmest on record+18° (2022)

Coldest on record0° (1997)

Tue, 27+8 ° /13 °

1.6

+13 °

Chalfont St Peter, Tuesday, 27 October

Climate average for this date — the mean of the last 60 years.

Average high13°C

Average low8°C

Average rainfall1.6 mm

Chance of rain33%

Warmest on record+20° (2022)

Coldest on record0° (1962)

Wed, 28+7 ° /13 °

2.1

+13 °

Chalfont St Peter, Wednesday, 28 October

Climate average for this date — the mean of the last 60 years.

Average high13°C

Average low7°C

Average rainfall2.1 mm

Chance of rain42%

Warmest on record+18° (2022)

Coldest on record0° (2003)

Thu, 29+7 ° /12 °

1.3

+12 °

Chalfont St Peter, Thursday, 29 October

Climate average for this date — the mean of the last 60 years.

Average high12°C

Average low7°C

Average rainfall1.3 mm

Chance of rain30%

Warmest on record+21° (2022)

Coldest on record-2° (2008)

Fri, 30+7 ° /13 °

1.4

+13 °

Chalfont St Peter, Friday, 30 October

Climate average for this date — the mean of the last 60 years.

Average high13°C

Average low7°C

Average rainfall1.4 mm

Chance of rain28%

Warmest on record+19° (2001)

Coldest on record-2° (1997)

Sat, 31+7 ° /13 °

2.2

+13 °

Chalfont St Peter, Saturday, 31 October

Climate average for this date — the mean of the last 60 years.

Average high13°C

Average low7°C

Average rainfall2.2 mm

Chance of rain32%

Warmest on record+19° (2014)

Coldest on record-2° (1997)

Sun, 01+7 ° /12 °

2.3

+12 °

Chalfont St Peter, Sunday, 1 November

Climate average for this date — the mean of the last 60 years.

Average high12°C

Average low7°C

Average rainfall2.3 mm

Chance of rain40%

Warmest on record+17° (1999)

Coldest on record-1° (1988)

Mon, 02+7 ° /12 °

2.9

+12 °

Chalfont St Peter, Monday, 2 November

Climate average for this date — the mean of the last 60 years.

Average high12°C

Average low7°C

Average rainfall2.9 mm

Chance of rain37%

Warmest on record+17° (2005)

Coldest on record+0° (1985)

Tue, 03+6 ° /12 °

1.7

+12 °

Chalfont St Peter, Tuesday, 3 November

Climate average for this date — the mean of the last 60 years.

Average high12°C

Average low6°C

Average rainfall1.7 mm

Chance of rain32%

Warmest on record+16° (1996)

Coldest on record-3° (1985)

Wed, 04+6 ° /11 °

2.4

+11 °

Chalfont St Peter, Wednesday, 4 November

Climate average for this date — the mean of the last 60 years.

Average high11°C

Average low6°C

Average rainfall2.4 mm

Chance of rain35%

Warmest on record+16° (2010)

Coldest on record-2° (1966)

Thu, 05+6 ° /11 °

1.5

+11 °

Chalfont St Peter, Thursday, 5 November

Climate average for this date — the mean of the last 60 years.

Average high11°C

Average low6°C

Average rainfall1.5 mm

Chance of rain28%

Warmest on record+17° (2025)

Coldest on record-2° (1988)

Fri, 06+6 ° /11 °

2.3

+11 °

Chalfont St Peter, Friday, 6 November

Climate average for this date — the mean of the last 60 years.

Average high11°C

Average low6°C

Average rainfall2.3 mm

Chance of rain35%

Warmest on record+17° (2025)

Coldest on record0° (1995)

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 Peter 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 Peter 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.