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

68°F

20°C

Humidity 76%
Wind Speed Calm
Barometer 29.98 in (1015.3 mb)
Dewpoint 60°F (16°C)
Visibility 9.00 mi
Last update 24 Jul 8:55 pm CDT
Extended Forecast for

Warrens WI

Extreme Heat Watch July 26, 12:00pm until July 26, 09:00pm
Click here for hazard details and duration
Extreme Heat Watch

  • Tonight

    Tonight: Partly cloudy, with a low around 60. South wind around 5 mph.

    Low: 60 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of showers between 11am and noon. Partly sunny, with a high near 88. Southwest wind 5 to 8 mph. Chance of precipitation is 20%.

    High: 88 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms between 2am and 3am. Partly cloudy, with a low around 69. Light southwest wind. Chance of precipitation is 20%.

    Low: 69 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: A slight chance of showers and thunderstorms between 7am and 1pm. Partly sunny, with a high near 92. Heat index values as high as 100. Calm wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    High: 92 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71. Southwest wind 3 to 7 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly before 7am. Mostly sunny, with a high near 93. Light southwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 21 mph.

    High: 93 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 66. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 66 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 89. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 64. Calm wind.

    Low: 64 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 60. South wind around 5 mph.
Saturday
A slight chance of showers between 11am and noon. Partly sunny, with a high near 88. Southwest wind 5 to 8 mph. Chance of precipitation is 20%.
Saturday Night
A slight chance of showers and thunderstorms between 2am and 3am. Partly cloudy, with a low around 69. Light southwest wind. Chance of precipitation is 20%.
Sunday
A slight chance of showers and thunderstorms between 7am and 1pm. Partly sunny, with a high near 92. Heat index values as high as 100. Calm wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Sunday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71. Southwest wind 3 to 7 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
A 30 percent chance of showers and thunderstorms, mainly before 7am. Mostly sunny, with a high near 93. Light southwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 21 mph.
Monday Night
Mostly clear, with a low around 66. Northwest wind 5 to 7 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 89. Calm wind becoming northwest around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 64. Calm wind.
Wednesday
Sunny, with a high near 89. Calm wind becoming northwest around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 64. Calm wind.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89. Calm wind becoming southwest around 5 mph in the afternoon.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65. Calm wind.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87. Calm wind becoming west 5 to 7 mph in the morning.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Warrens WI
 44.12°N 90.51°W
Last Update:
8:46 pm CDT Jul 24, 2026
Forecast Valid:
9pm CDT Jul 24, 2026-6pm CDT Jul 31, 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