As of 05:47 EDT

Weather in Colchester, CT

36°

Colchester, Wednesday, 28 October, 05:47

Clear. Feels like 32°. High 59°, low 36°.

Pressure30.47 inHg

Wind4.9 mph NE

Humidity72%

Visibility6.2 mi

Dew point29°

See detailed hourly forecast

Monthly outlook for Colchester, CT: average high 57.8°, average low 39.7°. That is 1.3° above the climate normal for October. Precipitation is expected on 4 days (about 2.5 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 29 October (67.4°), the coolest 9 November (33.9°).

57.8°/39.7°

Average high / low

+1.3°

Above normal

4 / 5

Wet days / normal

2.5 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
28 October – 6 November	60°	56.8°	+1.7°
7 November – 16 November	54.2°	52.2°	+1.1°
17 November – 26 November	at normal	48.7°	—

October records over 66 years

83.8°6 October 2007All-time high

22.6°31 October 2020All-time low

Climate normals and records are computed from the nearest reference point — Norwich (13 mi).

Thu, 2967° / 46°

67 °

Colchester, Thursday, 29 October

Clear. High 67°, low 46°.

Pressure30.24 inHg

Wind9.8 mph SW

Humidity63%

Visibility6.2 mi

Dew point49°

Fri, 3065° / 46°

65 °

Colchester, Friday, 30 October

Clear. High 65°, low 46°.

Pressure30.00 inHg

Wind10.3 mph NW

Humidity54%

Visibility6.2 mi

Dew point48°

Sat, 3152° / 39°

52 °

Colchester, Saturday, 31 October

Partly cloudy. High 52°, low 39°.

Pressure30.39 inHg

Wind8.6 mph N

Humidity51%

Visibility6.2 mi

Dew point32°

Sun, 0158° / 36°

58 °

Colchester, Sunday, 1 November

Clear. High 58°, low 36°.

Pressure30.45 inHg

Wind7.1 mph S

Humidity53%

Visibility—

Dew point32°

Mon, 0264° / 42°

64 °

Colchester, Monday, 2 November

Clear. High 64°, low 42°.

Pressure30.33 inHg

Wind4.8 mph W

Humidity63%

Visibility—

Dew point42°

Tue, 0355° / 39°

55 °

Colchester, Tuesday, 3 November

Overcast. High 55°, low 39°.

Pressure30.24 inHg

Wind10.3 mph NE

Humidity81%

Visibility—

Dew point49°

Wed, 0454° / 35°

54 °

Colchester, Wednesday, 4 November

Overcast. High 54°, low 35°.

Pressure30.53 inHg

Wind7.9 mph E

Humidity46%

Visibility—

Dew point27°

Thu, 0561° / 37°

0.04

61 °

Colchester, Thursday, 5 November

Light rain. High 61°, low 37°.

Pressure30.27 inHg

Wind12.4 mph SE

Humidity80%

Visibility—

Dew point47°

Fri, 0665° / 52°

0.98

65 °

Colchester, Friday, 6 November

Heavy rain. High 65°, low 52°.

Pressure29.50 inHg

Wind14.4 mph S

Humidity95%

Visibility—

Dew point64°

Sat, 0747° / 38°

0.05

47 °

Colchester, Saturday, 7 November

Light rain. High 47°, low 38°.

Pressure29.74 inHg

Wind9.5 mph NW

Humidity90%

Visibility—

Dew point40°

Sun, 0852° / 35°

52 °

Colchester, Sunday, 8 November

Mostly clear. High 52°, low 35°.

Pressure29.94 inHg

Wind10.9 mph NW

Humidity61%

Visibility—

Dew point31°

Mon, 0956° / 34°

56 °

Colchester, Monday, 9 November

Clear. High 56°, low 34°.

Pressure30.15 inHg

Wind7.7 mph NW

Humidity44%

Visibility—

Dew point26°

Tue, 1055° / 35°

55 °

Colchester, Tuesday, 10 November

Clear. High 55°, low 35°.

Pressure30.27 inHg

Wind3.3 mph W

Humidity59%

Visibility—

Dew point34°

Wed, 1156° / 39°

56 °

Colchester, Wednesday, 11 November

Clear. High 56°, low 39°.

Pressure30.12 inHg

Wind7.4 mph S

Humidity60%

Visibility—

Dew point39°

Thu, 1260° / 49°

1.39

60 °

Colchester, Thursday, 12 November

Heavy rain. High 60°, low 49°.

Pressure29.50 inHg

Wind20.9 mph SE

Humidity94%

Visibility—

Dew point56°

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

Fri, 1350° / 37°

0.21

50 °

Colchester, Friday, 13 November

Climate normal for this date — 60-year average.

Average high50°

Average low37°

Average precipitation0.21 in

Chance of precipitation40%

Record high68° (1964)

Record low19° (2019)

Sat, 1450° / 37°

0.09

50 °

Colchester, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high50°

Average low37°

Average precipitation0.09 in

Chance of precipitation22%

Record high65° (1993)

Record low20° (2019)

Sun, 1551° / 37°

0.12

51 °

Colchester, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high51°

Average low37°

Average precipitation0.12 in

Chance of precipitation35%

Record high72° (1993)

Record low22° (1967)

Mon, 1651° / 38°

0.15

51 °

Colchester, Monday, 16 November

Climate normal for this date — 60-year average.

Average high51°

Average low38°

Average precipitation0.15 in

Chance of precipitation37%

Record high68° (2001)

Record low19° (1967)

Tue, 1750° / 36°

0.16

50 °

Colchester, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high50°

Average low36°

Average precipitation0.16 in

Chance of precipitation27%

Record high64° (2006)

Record low17° (1967)

Wed, 1850° / 37°

0.08

50 °

Colchester, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high50°

Average low37°

Average precipitation0.08 in

Chance of precipitation23%

Record high65° (1987)

Record low24° (2020)

Thu, 1950° / 36°

0.06

50 °

Colchester, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high50°

Average low36°

Average precipitation0.06 in

Chance of precipitation18%

Record high61° (1985)

Record low19° (1986)

Fri, 2049° / 36°

0.12

49 °

Colchester, Friday, 20 November

Climate normal for this date — 60-year average.

Average high49°

Average low36°

Average precipitation0.12 in

Chance of precipitation32%

Record high66° (1985)

Record low15° (1986)

Sat, 2148° / 35°

0.11

48 °

Colchester, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high48°

Average low35°

Average precipitation0.11 in

Chance of precipitation30%

Record high62° (1999)

Record low18° (1987)

Sun, 2247° / 35°

0.15

47 °

Colchester, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high47°

Average low35°

Average precipitation0.15 in

Chance of precipitation37%

Record high63° (1982)

Record low13° (2018)

Mon, 2347° / 34°

0.13

47 °

Colchester, Monday, 23 November

Climate normal for this date — 60-year average.

Average high47°

Average low34°

Average precipitation0.13 in

Chance of precipitation25%

Record high64° (1979)

Record low12° (2018)

Tue, 2448° / 35°

0.1

48 °

Colchester, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high48°

Average low35°

Average precipitation0.1 in

Chance of precipitation32%

Record high65° (1979)

Record low8° (1989)

Wed, 2548° / 34°

0.16

48 °

Colchester, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high48°

Average low34°

Average precipitation0.16 in

Chance of precipitation23%

Record high67° (1979)

Record low19° (2013)

Thu, 2649° / 36°

0.2

49 °

Colchester, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high49°

Average low36°

Average precipitation0.2 in

Chance of precipitation45%

Record high64° (1979)

Record low23° (1978)

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 Colchester, 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 Colchester, 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.