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.

Fog/Mist

58°F

14°C

Humidity 97%
Wind Speed Calm
Barometer 29.70 in (1005.8 mb)
Dewpoint 57°F (14°C)
Visibility 6.00 mi
Last update 15 Apr 4:55 am CDT
Extended Forecast for

Warrens WI

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms. Patchy fog. Otherwise, mostly cloudy, with a low around 55. Calm wind.

    Low: 55 °F

    Slight Chance
    T-storms and
    Patchy Fog

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly after 2pm. Areas of fog before 10am. Otherwise, mostly cloudy, with a high near 65. Calm wind becoming north around 5 mph in the afternoon.

    High: 65 °F

    Chance
    T-storms and
    Areas Fog

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 49. Northeast wind 3 to 5 mph.

    Low: 49 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 69. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 69 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 49. Southeast wind 3 to 6 mph.

    Low: 49 °F

    Mostly Clear

  • Friday

    Friday: Showers likely and possibly a thunderstorm, mainly after 4pm. Partly sunny, with a high near 77. South wind 7 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Partly Sunny
    then Showers
    Likely

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 35. South wind around 11 mph becoming northwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 90%.

    Low: 35 °F

    Showers

  • Saturday

    Saturday: A chance of rain showers before 1pm, then a chance of rain and snow showers. Partly sunny, with a high near 45. Breezy, with a west wind 11 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 40%.

    High: 45 °F

    Chance
    Showers then
    Chance
    Rain/Snow and
    Breezy

  • Saturday Night

    Saturday Night: A 20 percent chance of snow showers before 1am. Mostly cloudy, with a low around 27. Breezy, with a west wind 9 to 17 mph, with gusts as high as 29 mph.

    Low: 27 °F

    Slight Chance
    Snow Showers
    and Breezy

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms. Patchy fog. Otherwise, mostly cloudy, with a low around 55. Calm wind.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Areas of fog before 10am. Otherwise, mostly cloudy, with a high near 65. Calm wind becoming north around 5 mph in the afternoon.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 49. Northeast wind 3 to 5 mph.
Thursday
A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 69. Calm wind becoming northeast around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 49. Southeast wind 3 to 6 mph.
Friday
Showers likely and possibly a thunderstorm, mainly after 4pm. Partly sunny, with a high near 77. South wind 7 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. 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 35. South wind around 11 mph becoming northwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 90%.
Saturday
A chance of rain showers before 1pm, then a chance of rain and snow showers. Partly sunny, with a high near 45. Breezy, with a west wind 11 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 40%.
Saturday Night
A 20 percent chance of snow showers before 1am. Mostly cloudy, with a low around 27. Breezy, with a west wind 9 to 17 mph, with gusts as high as 29 mph.
Sunday
Mostly sunny, with a high near 48. Northwest wind 9 to 13 mph, with gusts as high as 23 mph.
Sunday Night
Mostly clear, with a low around 25. Northwest wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 59. South wind 5 to 9 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 41. South wind 7 to 9 mph, with gusts as high as 22 mph.
Tuesday
Sunny, with a high near 68. West wind 8 to 11 mph, with gusts as high as 22 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:
3:46 am CDT Apr 15, 2026
Forecast Valid:
5am CDT Apr 15, 2026-6pm CDT Apr 21, 2026
 
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Additional Resources

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Chance of Precipitation