Weather in Heart Prairie, WI
Heart Prairie, Sunday, 9 August, 14:19
Overcast. Feels like 69°. High 80°, low 61°.
Monthly outlook for Heart Prairie, WI: average high 79.1°, average low 63.4°. That is 0.3° above the climate normal for August. Precipitation is expected on 10 days (about 2.7 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 15 August (84.9°), the coolest 22 August (55.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 79° | 78.7° | +0.1° |
| 19 August – 28 August | 79.4° | 78.8° | +0.3° |
| 29 August – 7 September | at normal | 77° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Darien (12 mi).
0.07
Heart Prairie, Monday, 10 August
Rain. High 84°, low 71°.
0.28Heart Prairie, Tuesday, 11 August
Heavy rain. High 82°, low 66°.
0Heart Prairie, Wednesday, 12 August
Overcast. High 79°, low 64°.
0Heart Prairie, Thursday, 13 August
Overcast. High 79°, low 63°.
0.06Heart Prairie, Friday, 14 August
Light rain. High 74°, low 63°.
0.48Heart Prairie, Saturday, 15 August
Rain. High 85°, low 66°.
0.09Heart Prairie, Sunday, 16 August
Light rain. High 73°, low 65°.
0.3Heart Prairie, Monday, 17 August
Light rain. High 71°, low 60°.
0.22Heart Prairie, Tuesday, 18 August
Rain. High 83°, low 67°.
0Heart Prairie, Wednesday, 19 August
Overcast. High 82°, low 64°.
0.02Heart Prairie, Thursday, 20 August
Light rain. High 84°, low 67°.
0.16Heart Prairie, Friday, 21 August
Rain. High 72°, low 57°.
0
Heart Prairie, Saturday, 22 August
Clear. High 77°, low 55°.
0Heart Prairie, Sunday, 23 August
Overcast. High 81°, low 60°.
0.11Heart Prairie, Monday, 24 August
Light rain. High 81°, low 65°.
0.09
Heart Prairie, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.15Heart Prairie, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.1Heart Prairie, Thursday, 27 August
Climate normal for this date — 60-year average.
0.13
Heart Prairie, Friday, 28 August
Climate normal for this date — 60-year average.
0.12Heart Prairie, Saturday, 29 August
Climate normal for this date — 60-year average.
0.07Heart Prairie, Sunday, 30 August
Climate normal for this date — 60-year average.
0.06Heart Prairie, Monday, 31 August
Climate normal for this date — 60-year average.
0.09Heart Prairie, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.05Heart Prairie, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.11Heart Prairie, Thursday, 3 September
Climate normal for this date — 60-year average.
0.08Heart Prairie, Friday, 4 September
Climate normal for this date — 60-year average.
0.08Heart Prairie, Saturday, 5 September
Climate normal for this date — 60-year average.
0.09Heart Prairie, Sunday, 6 September
Climate normal for this date — 60-year average.
0.1Heart Prairie, 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 Heart 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 Heart 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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