Weather in Prairie du Sac, WI
Prairie du Sac, Sunday, 9 August, 07:32
Overcast. Feels like 64°. High 82°, low 62°.
Monthly outlook for Prairie du Sac, WI: average high 80.2°, average low 63.4°. That is 0.7° above the climate normal for August. Precipitation is expected on 4 days (about 1.3 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 20 August (93.4°), the coolest 15 August (51.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 77.5° | 78.9° | -0.8° |
| 19 August – 28 August | 84.6° | 78.9° | +3.2° |
| 29 August – 7 September | at normal | 76.9° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Sauk City (1 mi).
0.02
Prairie du Sac, Monday, 10 August
Light rain. High 84°, low 71°.
0.62Prairie du Sac, Tuesday, 11 August
Heavy rain. High 80°, low 67°.
0Prairie du Sac, Wednesday, 12 August
Overcast. High 81°, low 66°.
0Prairie du Sac, Thursday, 13 August
Overcast. High 70°, low 58°.
0Prairie du Sac, Friday, 14 August
Overcast. High 74°, low 56°.
0.01Prairie du Sac, Saturday, 15 August
Light rain. High 74°, low 52°.
0.01Prairie du Sac, Sunday, 16 August
Light rain. High 75°, low 64°.
0Prairie du Sac, Monday, 17 August
Overcast. High 78°, low 61°.
0.01Prairie du Sac, Tuesday, 18 August
Light rain. High 78°, low 58°.
0.13Prairie du Sac, Wednesday, 19 August
Light rain. High 86°, low 68°.
0.01Prairie du Sac, Thursday, 20 August
Light rain. High 93°, low 74°.
0
Prairie du Sac, Friday, 21 August
Partly cloudy. High 84°, low 67°.
0.07Prairie du Sac, Saturday, 22 August
Light rain. High 89°, low 63°.
0.04Prairie du Sac, Sunday, 23 August
Light rain. High 81°, low 64°.
0Prairie du Sac, Monday, 24 August
Overcast. High 75°, low 63°.
0.09Prairie du Sac, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.14
Prairie du Sac, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.15Prairie du Sac, Thursday, 27 August
Climate normal for this date — 60-year average.
0.15Prairie du Sac, Friday, 28 August
Climate normal for this date — 60-year average.
0.11Prairie du Sac, Saturday, 29 August
Climate normal for this date — 60-year average.
0.07Prairie du Sac, Sunday, 30 August
Climate normal for this date — 60-year average.
0.04
Prairie du Sac, Monday, 31 August
Climate normal for this date — 60-year average.
0.1Prairie du Sac, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.09Prairie du Sac, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.11Prairie du Sac, Thursday, 3 September
Climate normal for this date — 60-year average.
0.09Prairie du Sac, Friday, 4 September
Climate normal for this date — 60-year average.
0.07Prairie du Sac, Saturday, 5 September
Climate normal for this date — 60-year average.
0.07Prairie du Sac, Sunday, 6 September
Climate normal for this date — 60-year average.
0.1Prairie du Sac, Monday, 7 September
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 Prairie du Sac, 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 Prairie du Sac, 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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