As of 10:46 BST

Weather in Chestnut Hill

+11°

Chestnut Hill, Thursday, 8 October, 10:46

Overcast. Feels like 10°C. High 11°C, low 5°C.

Pressure1021 mb

Wind6 mph NW

Humidity84%

Visibility1522 ft

Dew point8°C

Detailed hourly forecast

The month ahead in Chestnut Hill: daytime temperatures averaging +12.6° and +7.9° overnight — that is 0° above the climate average for October. Rain is expected on 6 days (around 65 mm), against a normal of 9 days and 71 mm. The warmest day should be 21 October (+14.5°), the coolest 17 October (+3.6°).

+12.6°/+7.9°

Average day / night

+0°

Above average

6 / 9

Wet days / normal

65 mm

Rainfall this month

Ten-day blocks against the climate average

Period	Forecast (day)	Average	Difference
8 October – 17 October	+11.9°	+13°	-1.1°
18 October – 27 October	+13.8°	+11.8°	+2°
28 October – 6 November	near average	+10.7°	—

October records over 66 years

+22.8°1 October 1985All-time high

-1.9°18 October 1993All-time low

Climate averages and records are calculated from the nearest reference point — Keswick (1 km away).

Fri, 09+10 ° /14 °

+14 °

Chestnut Hill, Friday, 9 October

Heavy rain. High 14°C, low 10°C.

Pressure1005 mb

Wind16 mph W

Humidity88%

Visibility6.2 mi

Dew point9°C

Sat, 10+6 ° /10 °

8.2

+10 °

Chestnut Hill, Saturday, 10 October

Rain. High 10°C, low 6°C.

Pressure1008 mb

Wind16 mph W

Humidity87%

Visibility6.2 mi

Dew point6°C

Sun, 11+6 ° /10 °

0.1

+10 °

Chestnut Hill, Sunday, 11 October

Light rain. High 10°C, low 6°C.

Pressure1012 mb

Wind6 mph W

Humidity78%

Visibility4.4 mi

Dew point6°C

Mon, 12+7 ° /13 °

1.9

+13 °

Chestnut Hill, Monday, 12 October

Light rain. High 13°C, low 7°C.

Pressure1012 mb

Wind16 mph S

Humidity95%

Visibility—

Dew point10°C

Tue, 13+10 ° /14 °

6.5

+14 °

Chestnut Hill, Tuesday, 13 October

Rain. High 14°C, low 10°C.

Pressure1019 mb

Wind19 mph SW

Humidity79%

Visibility—

Dew point10°C

Wed, 14+9 ° /14 °

9.5

+14 °

Chestnut Hill, Wednesday, 14 October

Light rain. High 14°C, low 9°C.

Pressure1015 mb

Wind18 mph S

Humidity96%

Visibility—

Dew point13°C

Thu, 15+7 ° /11 °

0.5

+11 °

Chestnut Hill, Thursday, 15 October

Light rain. High 11°C, low 7°C.

Pressure1022 mb

Wind8 mph NW

Humidity72%

Visibility—

Dew point6°C

Fri, 16+5 ° /10 °

+10 °

Chestnut Hill, Friday, 16 October

Clear sky. High 10°C, low 5°C.

Pressure1023 mb

Wind5 mph N

Humidity67%

Visibility—

Dew point4°C

Sat, 17+4 ° /11 °

+11 °

Chestnut Hill, Saturday, 17 October

Clear sky. High 11°C, low 4°C.

Pressure1018 mb

Wind4 mph E

Humidity71%

Visibility—

Dew point4°C

Sun, 18+6 ° /13 °

0.1

+13 °

Chestnut Hill, Sunday, 18 October

Light rain. High 13°C, low 6°C.

Pressure1018 mb

Wind6 mph N

Humidity80%

Visibility—

Dew point9°C

Mon, 19+11 ° /14 °

0.8

+14 °

Chestnut Hill, Monday, 19 October

Light rain. High 14°C, low 11°C.

Pressure1029 mb

Wind14 mph NE

Humidity90%

Visibility—

Dew point12°C

Tue, 20+10 ° /14 °

0.2

+14 °

Chestnut Hill, Tuesday, 20 October

Light rain. High 14°C, low 10°C.

Pressure1024 mb

Wind11 mph E

Humidity80%

Visibility—

Dew point11°C

Wed, 21+10 ° /15 °

+15 °

Chestnut Hill, Wednesday, 21 October

Overcast. High 15°C, low 10°C.

Pressure1019 mb

Wind4 mph E

Humidity77%

Visibility—

Dew point10°C

Thu, 22+11 ° /14 °

+14 °

Chestnut Hill, Thursday, 22 October

Partly cloudy. High 14°C, low 11°C.

Pressure1024 mb

Wind4 mph NE

Humidity68%

Visibility—

Dew point7°C

Fri, 23+10 ° /14 °

+14 °

Chestnut Hill, Friday, 23 October

Overcast. High 14°C, low 10°C.

Pressure1031 mb

Wind5 mph NE

Humidity77%

Visibility—

Dew point9°C

Days 17 onward are based on 60-year climate statistics

Sat, 24+7 ° /12 °

5.9

+12 °

Chestnut Hill, Saturday, 24 October

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

Average high12°C

Average low7°C

Average rainfall5.9 mm

Chance of rain63%

Warmest on record+17° (1995)

Coldest on record-1° (1964)

Sun, 25+7 ° /12 °

6.4

+12 °

Chestnut Hill, Sunday, 25 October

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

Average high12°C

Average low7°C

Average rainfall6.4 mm

Chance of rain60%

Warmest on record+17° (2024)

Coldest on record+1° (2003)

Mon, 26+7 ° /12 °

4.5

+12 °

Chestnut Hill, Monday, 26 October

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

Average high12°C

Average low7°C

Average rainfall4.5 mm

Chance of rain65%

Warmest on record+16° (2005)

Coldest on record0° (2003)

Tue, 27+8 ° /12 °

6.4

+12 °

Chestnut Hill, Tuesday, 27 October

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

Average high12°C

Average low8°C

Average rainfall6.4 mm

Chance of rain72%

Warmest on record+19° (2005)

Coldest on record0° (1962)

Wed, 28+7 ° /11 °

7.1

+11 °

Chestnut Hill, Wednesday, 28 October

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

Average high11°C

Average low7°C

Average rainfall7.1 mm

Chance of rain63%

Warmest on record+16° (2005)

Coldest on record-1° (2008)

Thu, 29+6 ° /11 °

4.9

+11 °

Chestnut Hill, Thursday, 29 October

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

Average high11°C

Average low6°C

Average rainfall4.9 mm

Chance of rain55%

Warmest on record+16° (2005)

Coldest on record-1° (1988)

Fri, 30+7 ° /11 °

5.2

+11 °

Chestnut Hill, Friday, 30 October

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

Average high11°C

Average low7°C

Average rainfall5.2 mm

Chance of rain67%

Warmest on record+16° (2005)

Coldest on record-1° (2008)

Sat, 31+7 ° /11 °

5.5

+11 °

Chestnut Hill, Saturday, 31 October

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

Average high11°C

Average low7°C

Average rainfall5.5 mm

Chance of rain60%

Warmest on record+18° (2014)

Coldest on record0° (1992)

Sun, 01+7 ° /11 °

6.9

+11 °

Chestnut Hill, Sunday, 1 November

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

Average high11°C

Average low7°C

Average rainfall6.9 mm

Chance of rain67%

Warmest on record+16° (2014)

Coldest on record0° (2008)

Mon, 02+6 ° /11 °

6.1

+11 °

Chestnut Hill, Monday, 2 November

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

Average high11°C

Average low6°C

Average rainfall6.1 mm

Chance of rain52%

Warmest on record+15° (1996)

Coldest on record0° (1985)

Tue, 03+6 ° /10 °

+10 °

Chestnut Hill, Tuesday, 3 November

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

Average high10°C

Average low6°C

Average rainfall7 mm

Chance of rain72%

Warmest on record+16° (2011)

Coldest on record-1° (1966)

Wed, 04+6 ° /10 °

4.7

+10 °

Chestnut Hill, Wednesday, 4 November

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

Average high10°C

Average low6°C

Average rainfall4.7 mm

Chance of rain53%

Warmest on record+14° (1994)

Coldest on record-1° (1968)

Thu, 05+6 ° /10 °

4.3

+10 °

Chestnut Hill, Thursday, 5 November

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

Average high10°C

Average low6°C

Average rainfall4.3 mm

Chance of rain57%

Warmest on record+15° (2025)

Coldest on record-1° (1984)

Fri, 06+6 ° /10 °

3.4

+10 °

Chestnut Hill, Friday, 6 November

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

Average high10°C

Average low6°C

Average rainfall3.4 mm

Chance of rain50%

Warmest on record+15° (2025)

Coldest on record0° (1984)

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 Chestnut Hill 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 Chestnut Hill 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.