Weather WorldLake Onalaska, WI 7-Day Night Weather Forecast
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Lake Onalaska, WI Weather Forecast
Lake Onalaska, WI Weather Forecast Date: 617 PM CDT Sat Sep 12 2026
The area/counties/county of: La Crosse, including the city of La Crosse.or toggle through each period.
Tonight... Partly cloudy. Cooler with lows in the lower 50s. Light winds.
Sunday... Mostly sunny. A slight chance of showers in the morning. Highs around 70. Northwest winds 5 to 10 mph. Chance of rain 20%.
Sunday Night... Clear in the evening, then becoming partly cloudy. Lows in the mid 40s. Northwest winds around 5 mph in the evening, becoming light and variable.
Monday... Mostly sunny in the morning, then mostly cloudy with rain showers in the afternoon. Highs in the lower 70s. Southeast winds 10 to 15 mph. Gusts up to 30 mph in the afternoon. Chance of rain 90%.
Monday Night... Not as cool. Showers and a chance of thunderstorms. Lows around 60. South winds 10 to 20 mph with gusts up to 35 mph. Chance of rain 100%.
Tuesday... Mostly cloudy. Highs in the mid 70s. Lows in the lower 50s.
Tuesday Night... Mostly cloudy. Highs in the mid 70s. Lows in the lower 50s.
Wednesday... Mostly cloudy with a chance of showers. Highs in the upper 60s. Chance of rain 40%.
Wednesday Night... Showers likely. Lows in the mid 50s. Chance of rain 60%.
Thursday... Mostly cloudy in the morning, then becoming partly sunny. A 50% chance of showers. Highs in the lower 70s.
Thursday Night... Mostly cloudy in the evening, then becoming partly cloudy. A 30% chance of showers. Lows in the lower 50s.
Friday... Partly sunny with a 40% chance of showers. Highs around 70.
Friday Night... Partly cloudy with a chance of showers. Lows in the lower 50s. Chance of rain 40%.
POP = Probability of Precipitation
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