As of 09:20 EST

Weather in Harwinton, CT

50°

Harwinton, Sunday, 8 November, 09:20

Overcast. Feels like 49°. High 54°, low 45°.

Pressure29.80 inHg

Wind3 mph NW

Humidity84%

Visibility6.2 mi

Dew point45°

See detailed hourly forecast

Monthly outlook for Harwinton, CT: average high 48.4°, average low 38°. That is 0.5° above the climate normal for November. Precipitation is expected on 5 days (about 2.0 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 23 November (60.3°), the coolest 19 November (29.5°).

48.4°/38°

Average high / low

+0.5°

Above normal

5 / 5

Wet days / normal

2.0 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
8 November – 17 November	47.1°	48.7°	-0.9°
18 November – 27 November	50.4°	45.6°	+2.7°
28 November – 7 December	at normal	42°	—

November records over 66 years

76.1°6 November 2024All-time high

3.7°20 November 1986All-time low

Climate normals and records are computed from the nearest reference point — Plymouth (6 mi).

Mon, 0953° / 44°

0.05

53 °

Harwinton, Monday, 9 November

Light rain. High 53°, low 44°.

Pressure29.74 inHg

Wind11.3 mph NW

Humidity76%

Visibility6.2 mi

Dew point41°

Tue, 1054° / 42°

54 °

Harwinton, Tuesday, 10 November

Partly cloudy. High 54°, low 42°.

Pressure29.85 inHg

Wind9.8 mph SW

Humidity59%

Visibility6.2 mi

Dew point37°

Wed, 1151° / 41°

51 °

Harwinton, Wednesday, 11 November

Overcast. High 51°, low 41°.

Pressure29.94 inHg

Wind8.1 mph NW

Humidity53%

Visibility6.2 mi

Dew point34°

Thu, 1252° / 39°

0.22

52 °

Harwinton, Thursday, 12 November

Rain. High 52°, low 39°.

Pressure29.68 inHg

Wind13.2 mph NE

Humidity73%

Visibility—

Dew point38°

Fri, 1341° / 35°

0.49

41 °

Harwinton, Friday, 13 November

Rain. High 41°, low 35°.

Pressure29.32 inHg

Wind13.6 mph NE

Humidity98%

Visibility—

Dew point37°

Sat, 1440° / 34°

0.03

40 °

Harwinton, Saturday, 14 November

Light rain. High 40°, low 34°.

Pressure29.29 inHg

Wind12.4 mph W

Humidity92%

Visibility—

Dew point35°

Sun, 1542° / 37°

42 °

Harwinton, Sunday, 15 November

Overcast. High 42°, low 37°.

Pressure29.53 inHg

Wind13.9 mph W

Humidity71%

Visibility—

Dew point32°

Mon, 1642° / 35°

0.01

42 °

Harwinton, Monday, 16 November

Light rain. High 42°, low 35°.

Pressure29.68 inHg

Wind12.7 mph NW

Humidity74%

Visibility—

Dew point34°

Tue, 1743° / 34°

43 °

Harwinton, Tuesday, 17 November

Clear. High 43°, low 34°.

Pressure29.94 inHg

Wind14.5 mph NW

Humidity67%

Visibility—

Dew point29°

Wed, 1842° / 30°

42 °

Harwinton, Wednesday, 18 November

Clear. High 42°, low 30°.

Pressure30.09 inHg

Wind11.8 mph N

Humidity63%

Visibility—

Dew point27°

Thu, 1947° / 29°

47 °

Harwinton, Thursday, 19 November

Clear. High 47°, low 29°.

Pressure30.30 inHg

Wind5.3 mph NE

Humidity58%

Visibility—

Dew point27°

Fri, 2048° / 30°

48 °

Harwinton, Friday, 20 November

Overcast. High 48°, low 30°.

Pressure30.45 inHg

Wind4.9 mph SW

Humidity60%

Visibility—

Dew point28°

Sat, 2149° / 35°

49 °

Harwinton, Saturday, 21 November

Overcast. High 49°, low 35°.

Pressure30.45 inHg

Wind4.3 mph SW

Humidity77%

Visibility—

Dew point38°

Sun, 2257° / 44°

0.05

57 °

Harwinton, Sunday, 22 November

Light rain. High 57°, low 44°.

Pressure30.24 inHg

Wind12.8 mph S

Humidity86%

Visibility—

Dew point47°

Mon, 2360° / 54°

1.19

60 °

Harwinton, Monday, 23 November

Rain. High 60°, low 54°.

Pressure29.62 inHg

Wind14.6 mph S

Humidity96%

Visibility—

Dew point59°

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

Tue, 2445° / 31°

0.08

45 °

Harwinton, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high45°

Average low31°

Average precipitation0.08 in

Chance of precipitation25%

Record high64° (1979)

Record low4° (1989)

Wed, 2545° / 31°

0.13

45 °

Harwinton, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high45°

Average low31°

Average precipitation0.13 in

Chance of precipitation28%

Record high66° (1979)

Record low17° (2005)

Thu, 2646° / 32°

0.22

46 °

Harwinton, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high46°

Average low32°

Average precipitation0.22 in

Chance of precipitation43%

Record high61° (1979)

Record low18° (2005)

Fri, 2746° / 32°

0.14

46 °

Harwinton, Friday, 27 November

Climate normal for this date — 60-year average.

Average high46°

Average low32°

Average precipitation0.14 in

Chance of precipitation33%

Record high59° (1988)

Record low18° (1978)

Sat, 2846° / 33°

0.17

46 °

Harwinton, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high46°

Average low33°

Average precipitation0.17 in

Chance of precipitation35%

Record high64° (1990)

Record low11° (2002)

Sun, 2944° / 31°

0.09

44 °

Harwinton, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high44°

Average low31°

Average precipitation0.09 in

Chance of precipitation27%

Record high63° (2011)

Record low9° (2014)

Mon, 3042° / 31°

0.15

42 °

Harwinton, Monday, 30 November

Climate normal for this date — 60-year average.

Average high42°

Average low31°

Average precipitation0.15 in

Chance of precipitation35%

Record high61° (2020)

Record low18° (2013)

Tue, 0142° / 30°

0.14

42 °

Harwinton, Tuesday, 1 December

Climate normal for this date — 60-year average.

Average high42°

Average low30°

Average precipitation0.14 in

Chance of precipitation35%

Record high64° (2001)

Record low13° (1971)

Wed, 0242° / 29°

0.13

42 °

Harwinton, Wednesday, 2 December

Climate normal for this date — 60-year average.

Average high42°

Average low29°

Average precipitation0.13 in

Chance of precipitation32%

Record high59° (1982)

Record low9° (1971)

Thu, 0342° / 28°

0.16

42 °

Harwinton, Thursday, 3 December

Climate normal for this date — 60-year average.

Average high42°

Average low28°

Average precipitation0.16 in

Chance of precipitation32%

Record high60° (2009)

Record low8° (1971)

Fri, 0441° / 28°

0.11

41 °

Harwinton, Friday, 4 December

Climate normal for this date — 60-year average.

Average high41°

Average low28°

Average precipitation0.11 in

Chance of precipitation27%

Record high65° (1982)

Record low8° (1989)

Sat, 0540° / 27°

0.15

40 °

Harwinton, Saturday, 5 December

Climate normal for this date — 60-year average.

Average high40°

Average low27°

Average precipitation0.15 in

Chance of precipitation30%

Record high63° (2001)

Record low5° (2025)

Sun, 0641° / 28°

0.16

41 °

Harwinton, Sunday, 6 December

Climate normal for this date — 60-year average.

Average high41°

Average low28°

Average precipitation0.16 in

Chance of precipitation45%

Record high66° (2001)

Record low15° (1964)

Mon, 0740° / 27°

0.11

40 °

Harwinton, Monday, 7 December

Climate normal for this date — 60-year average.

Average high40°

Average low27°

Average precipitation0.11 in

Chance of precipitation32%

Record high65° (1998)

Record low6° (1964)

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 Harwinton, 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 Harwinton, 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.