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City of Onalaska, WIOnalaska, WI 7-Day Weather Forecast
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Onalaska Weather Forecast
Onalaska, WI Weather Forecast Date: 331 AM CDT Mon Sep 07 2026
Weather forecast for Onalaska, WI
Today Hi: 81°FHi: 27°C Lo: 61°F Lo: 16°C |
Today... Mostly sunny. Highs in the lower 80s. South winds 5 to 10 mph. |
Tue Hi: 81°FHi: 27°C Lo: 65°F Lo: 18°C |
Tuesday... Partly sunny with showers with a chance of thunderstorms in the morning, then mostly cloudy with a chance of showers in the afternoon. Humid with highs in the lower 80s. South winds 5 to 10 mph. Chance of rain 90%. |
| Wed Hi: 80°FHi: 27°C Lo: 59°F Lo: 15°C |
Wednesday... Mostly sunny. Highs around 80. West winds 10 to 15 mph. |
| Thu Hi: 79°FHi: 26°C Lo: 59°F Lo: 15°C |
Thursday... Clear. Highs in the upper 70s. Lows in the upper 50s. |
| Fri Hi: 81°FHi: 27°C Lo: 60°F Lo: 16°C |
Friday... Mostly sunny. Highs in the lower 80s. |
| Sat Hi: 79°FHi: 26°C Lo: 55°F Lo: 13°C |
Saturday... Mostly sunny. Highs in the upper 70s. |
Sun Hi: 71°FHi: 22°C |
Sunday... Partly sunny with a chance of showers. Highs in the lower 70s. Chance of rain 40%. |
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