National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

La Crosse - La Crosse Regional Airport (KLSE)

Lat: 43.88°NLon: 91.26°WElev: 653ft.

Overcast

69°F

21°C

Humidity 93%
Wind Speed Calm
Barometer 29.96 in (1013.6 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 10 Aug 7:53 am CDT
Extended Forecast for

Onalaska WI

  • Today

    Today: Patchy fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 86. Calm wind.

    High: 86 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: A 30 percent chance of showers after 5am. Increasing clouds, with a low around 67. Calm wind.

    Low: 67 °F

    Mostly Clear
    then Chance
    Showers

  • Tuesday

    Tuesday: Showers and thunderstorms likely, mainly before noon. Partly sunny, with a high near 85. Light east wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Showers
    Likely then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 67. Calm wind. Chance of precipitation is 40%.

    Low: 67 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 1pm. Mostly sunny, with a high near 86. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 86 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 65. Light and variable wind.

    Low: 65 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 80. Light northeast wind.

    High: 80 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 61. Light east wind.

    Low: 61 °F

    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of showers after 1pm. Partly sunny, with a high near 78. East wind 3 to 6 mph.

    High: 78 °F

    Partly Sunny
    then Slight
    Chance
    Showers

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 86. Calm wind.
Tonight
A 30 percent chance of showers after 5am. Increasing clouds, with a low around 67. Calm wind.
Tuesday
Showers and thunderstorms likely, mainly before noon. Partly sunny, with a high near 85. Light east wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 67. Calm wind. Chance of precipitation is 40%.
Wednesday
A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 1pm. Mostly sunny, with a high near 86. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 65. Light and variable wind.
Thursday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 80. Light northeast wind.
Thursday Night
Mostly cloudy, with a low around 61. Light east wind.
Friday
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 78. East wind 3 to 6 mph.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 61. Southeast wind around 6 mph.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 77. Southeast wind 5 to 7 mph.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 62. East wind around 5 mph becoming light and variable in the evening.
Sunday
A 20 percent chance of showers. Partly sunny, with a high near 77. Northwest wind 3 to 5 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Onalaska WI
 43.89°N 91.23°W
Last Update:
5:02 am CDT Aug 10, 2026
Forecast Valid:
8am CDT Aug 10, 2026-6pm CDT Aug 16, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation