As of 18:57 EDT

Weather in Chester, CT

51°

Chester, Sunday, 11 October, 18:57

Heavy rain. Feels like 51°. High 56°, low 46°.

Pressure30.06 inHg

Wind9.2 mph NE

Humidity95%

Visibility1.8 mi

Dew point50°

See detailed hourly forecast

Monthly outlook for Chester, CT: average high 61.5°, average low 46.3°. That is 0.6° above the climate normal for October. Precipitation is expected on 4 days (about 1.2 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 14 October (76°), the coolest 18 October (32.2°).

61.5°/46.3°

Average high / low

+0.6°

Above normal

4 / 5

Wet days / normal

1.2 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
11 October – 20 October	61.1°	61.2°	-0.1°
21 October – 30 October	62.2°	58.2°	+2.2°
31 October – 9 November	at normal	55.5°	—

October records over 66 years

80.6°2 October 2019All-time high

29.1°31 October 2020All-time low

Climate normals and records are computed from the nearest reference point — Old Lyme (11 mi).

Mon, 1269° / 48°

0.07

69 °

Chester, Monday, 12 October

Light rain. High 69°, low 48°.

Pressure29.77 inHg

Wind8.7 mph N

Humidity72%

Visibility6.2 mi

Dew point54°

Tue, 1368° / 51°

68 °

Chester, Tuesday, 13 October

Partly cloudy. High 68°, low 51°.

Pressure29.94 inHg

Wind8.6 mph SE

Humidity70%

Visibility6.2 mi

Dew point58°

Wed, 1476° / 59°

76 °

Chester, Wednesday, 14 October

Light rain. High 76°, low 59°.

Pressure29.80 inHg

Wind8.5 mph NW

Humidity67%

Visibility6.2 mi

Dew point64°

Thu, 1562° / 50°

62 °

Chester, Thursday, 15 October

Clear. High 62°, low 50°.

Pressure30.18 inHg

Wind8 mph N

Humidity57%

Visibility6.2 mi

Dew point44°

Fri, 1663° / 50°

0.41

63 °

Chester, Friday, 16 October

Rain. High 63°, low 50°.

Pressure29.68 inHg

Wind18.2 mph NW

Humidity95%

Visibility—

Dew point57°

Sat, 1748° / 35°

0.09

48 °

Chester, Saturday, 17 October

Snow. High 48°, low 35°.

Pressure29.94 inHg

Wind18.3 mph NW

Humidity83%

Visibility—

Dew point36°

Sun, 1846° / 32°

46 °

Chester, Sunday, 18 October

Clear. High 46°, low 32°.

Pressure30.50 inHg

Wind17 mph NW

Humidity41%

Visibility—

Dew point18°

Mon, 1957° / 37°

57 °

Chester, Monday, 19 October

Overcast. High 57°, low 37°.

Pressure30.53 inHg

Wind14.1 mph SW

Humidity46%

Visibility—

Dew point30°

Tue, 2064° / 42°

64 °

Chester, Tuesday, 20 October

Clear. High 64°, low 42°.

Pressure30.42 inHg

Wind9.3 mph NE

Humidity48%

Visibility—

Dew point37°

Wed, 2157° / 45°

57 °

Chester, Wednesday, 21 October

Overcast. High 57°, low 45°.

Pressure30.68 inHg

Wind10 mph E

Humidity65%

Visibility—

Dew point41°

Thu, 2258° / 41°

58 °

Chester, Thursday, 22 October

Overcast. High 58°, low 41°.

Pressure30.71 inHg

Wind6.8 mph NE

Humidity67%

Visibility—

Dew point40°

Fri, 2364° / 46°

64 °

Chester, Friday, 23 October

Clear. High 64°, low 46°.

Pressure30.47 inHg

Wind6.2 mph SW

Humidity65%

Visibility—

Dew point46°

Sat, 2467° / 51°

67 °

Chester, Saturday, 24 October

Overcast. High 67°, low 51°.

Pressure30.21 inHg

Wind10.3 mph SW

Humidity73%

Visibility—

Dew point53°

Sun, 2566° / 59°

66 °

Chester, Sunday, 25 October

Overcast. High 66°, low 59°.

Pressure29.91 inHg

Wind10.1 mph SW

Humidity85%

Visibility—

Dew point59°

Mon, 2662° / 49°

0.03

62 °

Chester, Monday, 26 October

Light rain. High 62°, low 49°.

Pressure29.88 inHg

Wind10.5 mph NW

Humidity57%

Visibility—

Dew point41°

From day 17 onward the outlook is built from 60-year climate statistics

Tue, 2758° / 47°

0.15

58 °

Chester, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high58°

Average low47°

Average precipitation0.15 in

Chance of precipitation23%

Record high71° (1963)

Record low32° (1976)

Wed, 2858° / 47°

0.17

58 °

Chester, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high58°

Average low47°

Average precipitation0.17 in

Chance of precipitation33%

Record high74° (2023)

Record low32° (1976)

Thu, 2956° / 46°

0.17

56 °

Chester, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high56°

Average low46°

Average precipitation0.17 in

Chance of precipitation25%

Record high71° (1984)

Record low33° (1965)

Fri, 3056° / 45°

0.15

56 °

Chester, Friday, 30 October

Climate normal for this date — 60-year average.

Average high56°

Average low45°

Average precipitation0.15 in

Chance of precipitation23%

Record high66° (1971)

Record low35° (2020)

Sat, 3156° / 46°

0.07

56 °

Chester, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high56°

Average low46°

Average precipitation0.07 in

Chance of precipitation23%

Record high72° (2024)

Record low29° (2020)

Sun, 0158° / 47°

0.12

58 °

Chester, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high58°

Average low47°

Average precipitation0.12 in

Chance of precipitation28%

Record high74° (2024)

Record low37° (2010)

Mon, 0257° / 47°

0.08

57 °

Chester, Monday, 2 November

Climate normal for this date — 60-year average.

Average high57°

Average low47°

Average precipitation0.08 in

Chance of precipitation30%

Record high69° (2022)

Record low31° (1965)

Tue, 0357° / 46°

0.16

57 °

Chester, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high57°

Average low46°

Average precipitation0.16 in

Chance of precipitation30%

Record high69° (2017)

Record low35° (1980)

Wed, 0456° / 46°

0.04

56 °

Chester, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high56°

Average low46°

Average precipitation0.04 in

Chance of precipitation27%

Record high68° (1975)

Record low34° (2013)

Thu, 0556° / 46°

0.15

56 °

Chester, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high56°

Average low46°

Average precipitation0.15 in

Chance of precipitation40%

Record high70° (2022)

Record low34° (1965)

Fri, 0655° / 45°

0.11

55 °

Chester, Friday, 6 November

Climate normal for this date — 60-year average.

Average high55°

Average low45°

Average precipitation0.11 in

Chance of precipitation35%

Record high71° (2024)

Record low33° (2012)

Sat, 0755° / 44°

0.07

55 °

Chester, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high55°

Average low44°

Average precipitation0.07 in

Chance of precipitation25%

Record high72° (2022)

Record low32° (1962)

Sun, 0853° / 43°

0.13

53 °

Chester, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high53°

Average low43°

Average precipitation0.13 in

Chance of precipitation32%

Record high71° (2020)

Record low30° (2019)

Mon, 0953° / 43°

0.09

53 °

Chester, Monday, 9 November

Climate normal for this date — 60-year average.

Average high53°

Average low43°

Average precipitation0.09 in

Chance of precipitation22%

Record high67° (1975)

Record low26° (2019)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Chester, CT are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Chester, CT since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.