Weather in Grantville, CT
Grantville, Friday, 23 October, 12:15
Clear. Feels like 51°. High 54°, low 37°.
Monthly outlook for Grantville, CT: average high 55.1°, average low 41.8°. That is 0.1° below the climate normal for October. Precipitation is expected on 6 days (about 2.6 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 30 October (64.7°), the coolest 28 October (30.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 23 October – 1 November | 55.7° | 56.1° | -0.2° |
| 2 November – 11 November | 54.1° | 52.8° | +0.7° |
| 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).
0
Grantville, Saturday, 24 October
Partly cloudy. High 58°, low 33°.
0Grantville, Sunday, 25 October
Clear. High 61°, low 36°.
0
Grantville, Monday, 26 October
Overcast. High 58°, low 35°.
0Grantville, Tuesday, 27 October
Partly cloudy. High 49°, low 35°.
0Grantville, Wednesday, 28 October
Clear. High 50°, low 30°.
0Grantville, Thursday, 29 October
Clear. High 61°, low 38°.
0Grantville, Friday, 30 October
Overcast. High 65°, low 46°.
0.19
Grantville, Saturday, 31 October
Light rain. High 52°, low 47°.
0.35Grantville, Sunday, 1 November
Rain. High 50°, low 46°.
1.17Grantville, Monday, 2 November
Rain. High 55°, low 51°.
0Grantville, Tuesday, 3 November
Partly cloudy. High 62°, low 49°.
0.01Grantville, Wednesday, 4 November
Light rain. High 52°, low 45°.
0.7Grantville, Thursday, 5 November
Rain. High 46°, low 44°.
0.07Grantville, Friday, 6 November
Light rain. High 52°, low 46°.
0.07Grantville, Saturday, 7 November
Light rain. High 57°, low 51°.
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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