Weather in Harwinton, CT
Harwinton, Sunday, 25 October, 22:14
Clear. Feels like 41°. High 64°, low 30°.
Monthly outlook for Harwinton, CT: average high 54.2°, average low 35.6°. That is 0.1° above the climate normal for October. Precipitation is expected on 4 days (about 1.7 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 30 October (67.1°), the coolest 6 November (28.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 25 October – 3 November | 59.1° | 55.2° | +2.2° |
| 4 November – 13 November | 45.9° | 50.8° | -2.7° |
| 14 November – 23 November | at normal | 46.3° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Plymouth (6 mi).
0
Harwinton, Monday, 26 October
Clear. High 66°, low 32°.
0Harwinton, Tuesday, 27 October
Clear. High 54°, low 34°.
0
Harwinton, Wednesday, 28 October
Mostly clear. High 56°, low 35°.
0Harwinton, Thursday, 29 October
Mostly clear. High 63°, low 44°.
0Harwinton, Friday, 30 October
Clear. High 67°, low 50°.
0
Harwinton, Saturday, 31 October
Overcast. High 59°, low 40°.
0Harwinton, Sunday, 1 November
Overcast. High 56°, low 37°.
0.69
Harwinton, Monday, 2 November
Rain. High 55°, low 42°.
0.72Harwinton, Tuesday, 3 November
Rain. High 52°, low 42°.
0.01Harwinton, Wednesday, 4 November
Light rain. High 42°, low 33°.
0Harwinton, Thursday, 5 November
Overcast. High 42°, low 29°.
0Harwinton, Friday, 6 November
Overcast. High 45°, low 28°.
0Harwinton, Saturday, 7 November
Clear. High 53°, low 30°.
0.06Harwinton, Sunday, 8 November
Light rain. High 50°, low 33°.
0.21Harwinton, Monday, 9 November
Light rain. High 44°, low 29°.
0.14
Harwinton, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.15Harwinton, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.15Harwinton, Thursday, 12 November
Climate normal for this date — 60-year average.
0.2Harwinton, Friday, 13 November
Climate normal for this date — 60-year average.
0.11
Harwinton, Saturday, 14 November
Climate normal for this date — 60-year average.
0.13Harwinton, Sunday, 15 November
Climate normal for this date — 60-year average.
0.13Harwinton, Monday, 16 November
Climate normal for this date — 60-year average.
0.13Harwinton, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.09Harwinton, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.06Harwinton, Thursday, 19 November
Climate normal for this date — 60-year average.
0.15Harwinton, Friday, 20 November
Climate normal for this date — 60-year average.
0.11Harwinton, Saturday, 21 November
Climate normal for this date — 60-year average.
0.12Harwinton, Sunday, 22 November
Climate normal for this date — 60-year average.
0.14Harwinton, Monday, 23 November
Climate normal for this date — 60-year average.
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.
Sun and moon today
Weather history
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