Weather in Sun Prairie, WI
Sun Prairie, Wednesday, 21 October, 02:23
Clear. Feels like 46°. High 70°, low 43°.
Monthly outlook for Sun Prairie, WI: average high 56.3°, average low 40°. That is 2° above the climate normal for October. Precipitation is expected on 2 days (about 0.5 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 22 October (72.1°), the coolest 28 October (29.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 21 October – 30 October | 58.9° | 54.3° | +2.6° |
| 31 October – 9 November | 51.9° | 49.2° | +1.5° |
| 10 November – 19 November | at normal | 43.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Windsor (5 mi).
0
Sun Prairie, Thursday, 22 October
Clear. High 72°, low 46°.
0
Sun Prairie, Friday, 23 October
Overcast. High 67°, low 51°.
0Sun Prairie, Saturday, 24 October
Overcast. High 66°, low 50°.
0Sun Prairie, Sunday, 25 October
Overcast. High 68°, low 53°.
0.4
Sun Prairie, Monday, 26 October
Snow. High 57°, low 37°.
0.01
Sun Prairie, Tuesday, 27 October
Light rain. High 42°, low 31°.
0Sun Prairie, Wednesday, 28 October
Clear. High 47°, low 29°.
0Sun Prairie, Thursday, 29 October
Clear. High 49°, low 32°.
0Sun Prairie, Friday, 30 October
Clear. High 50°, low 31°.
0
Sun Prairie, Saturday, 31 October
Partly cloudy. High 56°, low 37°.
0.05Sun Prairie, Sunday, 1 November
Light rain. High 53°, low 49°.
0Sun Prairie, Monday, 2 November
Clear. High 54°, low 41°.
0.02Sun Prairie, Tuesday, 3 November
Light rain. High 45°, low 33°.
0.03Sun Prairie, Wednesday, 4 November
Light rain. High 51°, low 39°.
0Sun Prairie, Thursday, 5 November
Overcast. High 52°, low 36°.
0.08Sun Prairie, Friday, 6 November
Climate normal for this date — 60-year average.
0.03
Sun Prairie, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Sun Prairie, Sunday, 8 November
Climate normal for this date — 60-year average.
0.11
Sun Prairie, Monday, 9 November
Climate normal for this date — 60-year average.
0.11Sun Prairie, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.08Sun Prairie, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Sun Prairie, Thursday, 12 November
Climate normal for this date — 60-year average.
0.04Sun Prairie, Friday, 13 November
Climate normal for this date — 60-year average.
0.04Sun Prairie, Saturday, 14 November
Climate normal for this date — 60-year average.
0.05Sun Prairie, Sunday, 15 November
Climate normal for this date — 60-year average.
0.05Sun Prairie, Monday, 16 November
Climate normal for this date — 60-year average.
0.08Sun Prairie, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.08Sun Prairie, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.06Sun Prairie, Thursday, 19 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 Sun Prairie, WI 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 Sun Prairie, WI 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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