Weather WorldLake Onalaska, WI 7-Day Night Weather Forecast
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Lake Onalaska, WI Weather Forecast
Lake Onalaska, WI Weather Forecast Date: 842 AM CDT Fri Sep 11 2026
The area/counties/county of: La Crosse, including the city of La Crosse.or toggle through each period.
Today... Areas of fog this morning. Mostly sunny. Highs in the lower 80s. South winds 10 to 15 mph.
Tonight... Partly cloudy in the evening, then mostly cloudy with a chance of showers with a slight chance of thunderstorms after midnight. Lows in the mid 60s. South winds 10 to 15 mph. Chance of rain 50%.
Saturday... Mostly sunny. Highs in the upper 70s. West winds 10 to 15 mph, becoming northwest in the afternoon.
Saturday Night... Cooler. Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 50s. Light winds.
Sunday... Cooler. Mostly sunny. A chance of showers in the afternoon. Highs in the upper 60s. North winds 5 to 10 mph. Chance of rain 40%.
Sunday Night... Partly cloudy with a 50% chance of showers. Lows around 50.
Monday... Showers and a chance of thunderstorms. Highs in the mid 70s. Lows in the upper 50s. Chance of rain 90%.
Monday Night... Showers and a chance of thunderstorms. Highs in the mid 70s. Lows in the upper 50s. Chance of rain 90%.
Tuesday... Mostly cloudy. Highs around 70. Lows around 50.
Tuesday Night... Mostly cloudy. Highs around 70. Lows around 50.
Wednesday... Partly sunny with a 30% chance of showers. Highs in the lower 70s.
Wednesday Night... Mostly cloudy with a chance of showers. Lows in the mid 50s. Chance of rain 40%.
POP = Probability of Precipitation
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