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

51°F

11°C

Humidity 99%
Wind Speed Calm
Barometer 29.99 in (1015.9 mb)
Dewpoint 51°F (11°C)
Visibility 0.13 mi
Last update 22 Jun 5:55 am CDT
Extended Forecast for

Warrens WI

  • Today

    Today: Areas of fog before 10am. Otherwise, mostly sunny, with a high near 77. Calm wind becoming north around 5 mph in the afternoon.

    High: 77 °F

    Areas Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 50. Calm wind.

    Low: 50 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 78. Light southeast wind.

    High: 78 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 57. Calm wind becoming southwest around 6 mph after midnight. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Showers
    Likely then
    Showers

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 77. West wind 6 to 8 mph, with gusts as high as 18 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 52. Northwest wind around 5 mph becoming calm in the evening.

    Low: 52 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 74. Northwest wind 3 to 7 mph.

    High: 74 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 51. Northwest wind around 5 mph becoming calm in the evening.

    Low: 51 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 77. Calm wind.

    High: 77 °F

    Mostly Sunny

Detailed Forecast

Today
Areas of fog before 10am. Otherwise, mostly sunny, with a high near 77. Calm wind becoming north around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 50. Calm wind.
Tuesday
Increasing clouds, with a high near 78. Light southeast wind.
Tuesday Night
Showers and possibly a thunderstorm. Low around 57. Calm wind becoming southwest around 6 mph after midnight. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 77. West wind 6 to 8 mph, with gusts as high as 18 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Partly cloudy, with a low around 52. Northwest wind around 5 mph becoming calm in the evening.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 74. Northwest wind 3 to 7 mph.
Thursday Night
Mostly clear, with a low around 51. Northwest wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 77. Calm wind.
Friday Night
Mostly cloudy, with a low around 55. Calm wind.
Saturday
Partly sunny, with a high near 80. Calm wind becoming southeast 5 to 7 mph in the afternoon.
Saturday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Southeast wind 7 to 9 mph, with gusts as high as 21 mph.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 84. South wind 10 to 15 mph, with gusts as high as 28 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:
5:46 am CDT Jun 22, 2026
Forecast Valid:
6am CDT Jun 22, 2026-6pm CDT Jun 28, 2026
 
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Additional Resources

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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