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.

Fair

30°F

-1°C

Humidity 79%
Wind Speed Calm
Barometer 30.24 in (1025.3 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Last update 19 Apr 9:55 pm CDT
Extended Forecast for

Warrens WI

  • Tonight

    Tonight: Clear, with a low around 22. Calm wind.

    Low: 22 °F

    Clear

  • Monday

    Monday: Mostly sunny, with a high near 55. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 55 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 40. South wind 6 to 9 mph, with gusts as high as 21 mph.

    Low: 40 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Sunny, with a high near 73. Light and variable wind becoming northwest around 6 mph in the afternoon.

    High: 73 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 39. Light and variable wind.

    Low: 39 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 75. Southeast wind 5 to 9 mph, with gusts as high as 18 mph.

    High: 75 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56. Southeast wind 7 to 9 mph, with gusts as high as 21 mph.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 76. Breezy, with a south wind 9 to 18 mph, with gusts as high as 30 mph.

    High: 76 °F

    Breezy.
    Partly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 49. South wind 11 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 80%.

    Low: 49 °F

    Showers

Detailed Forecast

Tonight
Clear, with a low around 22. Calm wind.
Monday
Mostly sunny, with a high near 55. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Monday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 40. South wind 6 to 9 mph, with gusts as high as 21 mph.
Tuesday
Sunny, with a high near 73. Light and variable wind becoming northwest around 6 mph in the afternoon.
Tuesday Night
Clear, with a low around 39. Light and variable wind.
Wednesday
Sunny, with a high near 75. Southeast wind 5 to 9 mph, with gusts as high as 18 mph.
Wednesday Night
Mostly clear, with a low around 56. Southeast wind 7 to 9 mph, with gusts as high as 21 mph.
Thursday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 76. Breezy, with a south wind 9 to 18 mph, with gusts as high as 30 mph.
Thursday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 49. South wind 11 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 80%.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 63. West wind 11 to 14 mph, with gusts as high as 24 mph.
Friday Night
A 20 percent chance of showers. Partly cloudy, with a low around 38. West wind 6 to 9 mph, with gusts as high as 21 mph.
Saturday
A 20 percent chance of showers. Mostly sunny, with a high near 60. Northwest wind 7 to 10 mph, with gusts as high as 20 mph.
Saturday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 35. North wind 5 to 7 mph.
Sunday
A 20 percent chance of showers. Areas of frost. Otherwise, mostly sunny, with a high near 61. Northwest wind 5 to 9 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Warrens WI
 44.14°N 90.51°W
Last Update:
5:56 pm CDT Apr 19, 2026
Forecast Valid:
10pm CDT Apr 19, 2026-6pm CDT Apr 26, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation