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

Hazardous Weather Conditions

Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Fair

60°F

16°C

Humidity 98%
Wind Speed Calm
Barometer 29.68 in (1005.4 mb)
Dewpoint 59°F (15°C)
Visibility 9.00 mi
Last update 15 Apr 7:55 pm CDT
Extended Forecast for

Warrens WI

Flood Watch until April 16, 07:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch until April 16, 07:00am

    NOW until 7:00am Thu

    Flood Watch

  • Tonight

    Low: 51 °F

    Chance
    T-storms and
    Patchy Fog

  • Thursday

    Thursday: A 10 percent chance of showers and thunderstorms before 7am. Patchy fog before 9am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 70. Northwest wind around 5 mph becoming calm.

    High: 70 °F

    Slight Chance
    T-storms and
    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 52. Southeast wind 5 to 8 mph, with gusts as high as 18 mph.

    Low: 52 °F

    Mostly Clear

  • Friday

    Friday: Showers and possibly a thunderstorm, mainly after 4pm. High near 76. Breezy, with a south wind 9 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 76 °F

    Mostly Sunny
    then Showers
    and Breezy

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 33. South wind 11 to 14 mph becoming northwest after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 33 °F

    Showers

  • Saturday

    Saturday: A chance of rain and snow showers, mainly before 1pm. Partly sunny, with a high near 45. Breezy, with a west wind 14 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.

    High: 45 °F

    Chance
    Rain/Snow and
    Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 26. West wind 8 to 14 mph, with gusts as high as 26 mph.

    Low: 26 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 48. Northwest wind 8 to 13 mph, with gusts as high as 23 mph.

    High: 48 °F

    Mostly Sunny

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms, mainly between 2am and 5am. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 51. Light northeast wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A 10 percent chance of showers and thunderstorms before 7am. Patchy fog before 9am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 70. Northwest wind around 5 mph becoming calm.
Thursday Night
Mostly clear, with a low around 52. Southeast wind 5 to 8 mph, with gusts as high as 18 mph.
Friday
Showers and possibly a thunderstorm, mainly after 4pm. High near 76. Breezy, with a south wind 9 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 33. South wind 11 to 14 mph becoming northwest after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
A chance of rain and snow showers, mainly before 1pm. Partly sunny, with a high near 45. Breezy, with a west wind 14 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 26. West wind 8 to 14 mph, with gusts as high as 26 mph.
Sunday
Mostly sunny, with a high near 48. Northwest wind 8 to 13 mph, with gusts as high as 23 mph.
Sunday Night
Mostly clear, with a low around 25. Northwest wind 5 to 7 mph becoming calm in the evening.
Monday
Sunny, with a high near 59. South wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 43. South wind 7 to 9 mph, with gusts as high as 21 mph.
Tuesday
Mostly sunny, with a high near 68. West wind 8 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 40. Southwest wind around 7 mph.
Wednesday
Mostly sunny, with a high near 66. South wind 6 to 9 mph, with gusts as high as 18 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:
6:26 pm CDT Apr 15, 2026
Forecast Valid:
8pm CDT Apr 15, 2026-6pm CDT Apr 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation