Weather WorldLake Onalaska, WI 7-Day Weather Forecast
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Lake Onalaska Weather Forecast
Lake Onalaska, WI Weather Forecast Date: 502 AM CDT Wed Sep 16 2026
Weather forecast for Lake Onalaska, WI
Today Hi: 75°FHi: 24°C Lo: 59°F Lo: 15°C |
Today... Partly sunny. Highs in the mid 70s. East winds around 5 mph. |
Thu Hi: 79°FHi: 26°C Lo: 59°F Lo: 15°C |
Thursday... Mostly cloudy with a chance of showers in the morning, then partly sunny in the afternoon. Highs in the upper 70s. Light and variable winds, becoming north around 5 mph in the afternoon. Chance of rain 40%. |
Fri Hi: 69°FHi: 21°C Lo: 59°F Lo: 15°C |
Friday... Cooler. Showers likely in the morning, then showers and a chance of thunderstorms in the afternoon. Highs in the upper 60s. East winds 10 to 15 mph. Chance of rain 100%. |
Sat Hi: 71°FHi: 22°C Lo: 55°F Lo: 13°C |
Saturday... Showers likely. Highs in the lower 70s. Chance of rain 70%. |
| Sun Hi: 69°FHi: 21°C Lo: 51°F Lo: 11°C |
Sunday... Mostly cloudy with a 40% chance of showers. Lows in the mid 50s. Highs in the upper 60s. |
| Mon Hi: 69°FHi: 21°C Lo: 51°F Lo: 11°C |
Monday... Mostly cloudy with a 40% chance of showers. Highs in the upper 60s. |
| Tue Hi: 71°FHi: 22°C Lo: 51°F Lo: 11°C |
Tuesday... Mostly cloudy. A 30% chance of showers. Lows in the lower 50s. Highs in the lower 70s. |
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