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

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Fog/Mist

59°F

15°C

Humidity 98%
Wind Speed Calm
Barometer 29.97 in (1014.9 mb)
Dewpoint 59°F (15°C)
Visibility 5.00 mi
Last update 8 Aug 2:55 am CDT
Extended Forecast for

Warrens WI

  • Today

    Today: Sunny, with a high near 82. Northwest wind 3 to 7 mph.

    High: 82 °F

    Sunny

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 60. Calm wind becoming southwest around 5 mph.

    Low: 60 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms, mainly before 2pm. Mostly cloudy, with a high near 81. Light and variable wind becoming southwest around 6 mph in the morning. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 62. Calm wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday

    Monday: A slight chance of thunderstorms before 7am, then a chance of showers after 1pm. Mostly sunny, with a high near 84. Light east wind. Chance of precipitation is 30%.

    High: 84 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Monday Night

    Monday Night: A 50 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 62. Calm wind. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 62 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 83. Calm wind.

    High: 83 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 60. Calm wind. Chance of precipitation is 20%.

    Low: 60 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 82. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 82 °F

    Slight Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 82. Northwest wind 3 to 7 mph.
Tonight
A 20 percent chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 60. Calm wind becoming southwest around 5 mph.
Sunday
A 50 percent chance of showers and thunderstorms, mainly before 2pm. Mostly cloudy, with a high near 81. Light and variable wind becoming southwest around 6 mph in the morning. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 62. Calm wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
A slight chance of thunderstorms before 7am, then a chance of showers after 1pm. Mostly sunny, with a high near 84. Light east wind. Chance of precipitation is 30%.
Monday Night
A 50 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 62. Calm wind. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
A 40 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 83. Calm wind.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 60. Calm wind. Chance of precipitation is 20%.
Wednesday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 82. Calm wind becoming northwest around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 57. Calm wind.
Thursday
Partly sunny, with a high near 79. Calm wind becoming north around 5 mph in the afternoon.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 54. Light and variable wind.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 77. Calm wind becoming south around 5 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Warrens WI
 44.12°N 90.51°W
Last Update:
1:26 am CDT Aug 8, 2026
Forecast Valid:
5am CDT Aug 8, 2026-6pm CDT Aug 14, 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