Weather in Lake Geneva, WI
Lake Geneva, Sunday, 9 August, 03:06
Clear. Feels like 61°. High 79°, low 61°.
Monthly outlook for Lake Geneva, WI: average high 81.3°, average low 63.5°. That is 1.5° above the climate normal for August. Precipitation is expected on 6 days (about 1.5 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 20 August (95.8°), the coolest 14 August (55.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 78.3° | 78.7° | -0.3° |
| 19 August – 28 August | 86.2° | 78.8° | +4.1° |
| 29 August – 7 September | at normal | 77° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Darien (14 mi).
0.1
Lake Geneva, Monday, 10 August
Light rain. High 86°, low 68°.
0.5Lake Geneva, Tuesday, 11 August
Heavy rain. High 83°, low 65°.
0
Lake Geneva, Wednesday, 12 August
Overcast. High 81°, low 67°.
0Lake Geneva, Thursday, 13 August
Overcast. High 73°, low 60°.
0
Lake Geneva, Friday, 14 August
Partly cloudy. High 73°, low 55°.
0Lake Geneva, Saturday, 15 August
Overcast. High 76°, low 56°.
0.04Lake Geneva, Sunday, 16 August
Light rain. High 74°, low 62°.
0.02Lake Geneva, Monday, 17 August
Light rain. High 80°, low 62°.
0Lake Geneva, Tuesday, 18 August
Overcast. High 78°, low 59°.
0.24Lake Geneva, Wednesday, 19 August
Light rain. High 85°, low 66°.
0Lake Geneva, Thursday, 20 August
Overcast. High 96°, low 73°.
0
Lake Geneva, Friday, 21 August
Mostly clear. High 84°, low 67°.
0.01Lake Geneva, Saturday, 22 August
Light rain. High 90°, low 64°.
0Lake Geneva, Sunday, 23 August
Partly cloudy. High 88°, low 65°.
0.04Lake Geneva, Monday, 24 August
Light rain. High 75°, low 66°.
0.09Lake Geneva, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.15Lake Geneva, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.1Lake Geneva, Thursday, 27 August
Climate normal for this date — 60-year average.
0.13
Lake Geneva, Friday, 28 August
Climate normal for this date — 60-year average.
0.12Lake Geneva, Saturday, 29 August
Climate normal for this date — 60-year average.
0.07Lake Geneva, Sunday, 30 August
Climate normal for this date — 60-year average.
0.06Lake Geneva, Monday, 31 August
Climate normal for this date — 60-year average.
0.09Lake Geneva, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.05Lake Geneva, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.11Lake Geneva, Thursday, 3 September
Climate normal for this date — 60-year average.
0.08Lake Geneva, Friday, 4 September
Climate normal for this date — 60-year average.
0.08Lake Geneva, Saturday, 5 September
Climate normal for this date — 60-year average.
0.09Lake Geneva, Sunday, 6 September
Climate normal for this date — 60-year average.
0.1Lake Geneva, 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 Lake Geneva, 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 Lake Geneva, 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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