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.

Mostly Cloudy

66°F

19°C

Humidity 98%
Wind Speed Calm
Barometer 30.03 in (1016.7 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 16 Aug 3:55 am CDT
Extended Forecast for

Warrens WI

  • Overnight

    Overnight: A 10 percent chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 66. Light south wind.

    Low: 66 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms before 9am, then showers likely and possibly a thunderstorm between 9am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 82. Light and variable wind becoming north 5 to 8 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between three quarters and one inch possible.

    High: 82 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely, mainly between midnight and 4am, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 65. Light and variable wind becoming east around 5 mph after midnight. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 65 °F

    T-storms
    Likely

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms, mainly after noon. Mostly cloudy, with a high near 77. East wind 6 to 8 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 64. East wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Chance
    T-storms then
    Showers
    Likely

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86. Southeast wind 6 to 8 mph becoming southwest in the afternoon. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 62. Northwest wind 3 to 6 mph.

    Low: 62 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 78. North wind around 6 mph.

    High: 78 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 57. North wind around 5 mph becoming calm in the evening.

    Low: 57 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 10 percent chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 66. Light south wind.
Saturday
A chance of showers and thunderstorms before 9am, then showers likely and possibly a thunderstorm between 9am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 82. Light and variable wind becoming north 5 to 8 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between three quarters and one inch possible.
Saturday Night
Showers and thunderstorms likely, mainly between midnight and 4am, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 65. Light and variable wind becoming east around 5 mph after midnight. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
A 40 percent chance of showers and thunderstorms, mainly after noon. Mostly cloudy, with a high near 77. East wind 6 to 8 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 64. East wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86. Southeast wind 6 to 8 mph becoming southwest in the afternoon. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 62. Northwest wind 3 to 6 mph.
Tuesday
Partly sunny, with a high near 78. North wind around 6 mph.
Tuesday Night
Partly cloudy, with a low around 57. North wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 77. Calm wind becoming northeast around 5 mph in the morning.
Wednesday Night
Mostly clear, with a low around 54. Calm wind.
Thursday
Sunny, with a high near 80. Calm wind.
Thursday Night
Mostly clear, with a low around 57. Calm wind.
Friday
Mostly sunny, with a high near 81. Calm wind becoming west around 6 mph in the morning.
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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:
3:15 am CDT Aug 16, 2025
Forecast Valid:
4am CDT Aug 16, 2025-6pm CDT Aug 22, 2025
 
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Additional Resources

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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