Weather in Grantville, CT
Grantville, Friday, 23 October, 23:03
Overcast. Feels like 37°. High 55°, low 36°.
Monthly outlook for Grantville, CT: average high 54.5°, average low 35.7°. That is 0.5° below the climate normal for October. Precipitation is expected on 2 days (about 0.1 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 30 October (65°), the coolest 5 November (28.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 23 October – 1 November | 57.7° | 56.1° | +0.9° |
| 2 November – 11 November | 49.1° | 52.8° | -2.1° |
| 12 November – 21 November | at normal | 47.4° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Riverton (7 mi).
0Grantville, Saturday, 24 October
Overcast. High 59°, low 33°.
0
Grantville, Sunday, 25 October
Clear. High 64°, low 36°.
0
Grantville, Monday, 26 October
Partly cloudy. High 62°, low 35°.
0Grantville, Tuesday, 27 October
Partly cloudy. High 51°, low 35°.
0
Grantville, Wednesday, 28 October
Mostly clear. High 51°, low 32°.
0Grantville, Thursday, 29 October
Clear. High 60°, low 41°.
0Grantville, Friday, 30 October
Clear. High 65°, low 42°.
0Grantville, Saturday, 31 October
Clear. High 58°, low 41°.
0Grantville, Sunday, 1 November
Clear. High 52°, low 35°.
0.05
Grantville, Monday, 2 November
Light rain. High 46°, low 35°.
0Grantville, Tuesday, 3 November
Light rain. High 54°, low 43°.
0.03
Grantville, Wednesday, 4 November
Snow. High 42°, low 29°.
0Grantville, Thursday, 5 November
Overcast. High 49°, low 29°.
0Grantville, Friday, 6 November
Partly cloudy. High 47°, low 34°.
0.04Grantville, Saturday, 7 November
Light rain. High 57°, low 33°.
0.15
Grantville, Sunday, 8 November
Climate normal for this date — 60-year average.
0.11Grantville, Monday, 9 November
Climate normal for this date — 60-year average.
0.14Grantville, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.17Grantville, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.16Grantville, Thursday, 12 November
Climate normal for this date — 60-year average.
0.19Grantville, Friday, 13 November
Climate normal for this date — 60-year average.
0.13Grantville, Saturday, 14 November
Climate normal for this date — 60-year average.
0.14Grantville, Sunday, 15 November
Climate normal for this date — 60-year average.
0.15Grantville, Monday, 16 November
Climate normal for this date — 60-year average.
0.14Grantville, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.09Grantville, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.06Grantville, Thursday, 19 November
Climate normal for this date — 60-year average.
0.16Grantville, Friday, 20 November
Climate normal for this date — 60-year average.
0.11Grantville, Saturday, 21 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 Grantville, 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 Grantville, 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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