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

Freezing Rain Tonight, Severe Storms Possible Thursday

A winter storm will bring a belt of freezing rain along and north of I-90, especially in central Wisconsin, while mainly rain occurs to the south. Then, Thursday afternoon may bring severe thunderstorms to southwestern Wisconsin and northeast Iowa. Read More >

Hazardous Weather Conditions

Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Mostly Cloudy

44°F

7°C

Humidity 41%
Wind Speed E 12 G 18 mph
Barometer 30.16 in (1022.5 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 1 Apr 4:55 pm CDT
Extended Forecast for

Sparta WI

Winter Weather Advisory April 2, 12:00am until April 2, 10:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Tonight

    Tonight: Rain showers before 4am, then freezing rain. Low around 31. East wind 9 to 11 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. Total nighttime ice accumulation of 0.1 to 0.2 of an inch possible.

    Low: 31 °F

    Chance
    Showers then
    Rain/Freezing
    Rain

  • Thursday

    Thursday: Rain or freezing rain, becoming all rain after 10am. Some thunder is also possible. High near 52. East wind 9 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New ice accumulation of 0.1 to 0.2 of an inch possible.

    High: 52 °F

    Rain/Freezing
    Rain then
    Showers

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 32. Northeast wind 6 to 9 mph becoming west in the evening. Winds could gust as high as 18 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 32 °F

    Showers
    Likely

  • Friday

    Friday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 54. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 54 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm before 1am, then showers likely. Low around 36. East wind around 9 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 36 °F

    Showers

  • Saturday

    Saturday: A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 47. West wind 6 to 15 mph, with gusts as high as 24 mph.

    High: 47 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 29. Breezy, with a northwest wind 10 to 16 mph, with gusts as high as 26 mph.

    Low: 29 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 51. Northwest wind 8 to 13 mph, with gusts as high as 23 mph.

    High: 51 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 31. West wind around 6 mph becoming calm in the evening.

    Low: 31 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Tonight
Rain showers before 4am, then freezing rain. Low around 31. East wind 9 to 11 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. Total nighttime ice accumulation of 0.1 to 0.2 of an inch possible.
Thursday
Rain or freezing rain, becoming all rain after 10am. Some thunder is also possible. High near 52. East wind 9 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New ice accumulation of 0.1 to 0.2 of an inch possible.
Thursday Night
Showers and thunderstorms likely before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 32. Northeast wind 6 to 9 mph becoming west in the evening. Winds could gust as high as 18 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 54. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and possibly a thunderstorm before 1am, then showers likely. Low around 36. East wind around 9 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 47. West wind 6 to 15 mph, with gusts as high as 24 mph.
Saturday Night
Mostly cloudy, with a low around 29. Breezy, with a northwest wind 10 to 16 mph, with gusts as high as 26 mph.
Sunday
Mostly sunny, with a high near 51. Northwest wind 8 to 13 mph, with gusts as high as 23 mph.
Sunday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 31. West wind around 6 mph becoming calm in the evening.
Monday
A slight chance of snow showers before 1pm, then a slight chance of rain showers. Mostly cloudy, with a high near 48. Northwest wind 5 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.
Monday Night
A slight chance of rain and snow showers. Mostly cloudy, with a low around 23. North wind 5 to 7 mph. Chance of precipitation is 20%.
Tuesday
Sunny, with a high near 48. Calm wind becoming east around 6 mph in the morning.
Tuesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 29. Southeast wind 5 to 7 mph.
Wednesday
A 30 percent chance of showers. Partly sunny, with a high near 58. South wind 7 to 13 mph, with gusts as high as 22 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Sparta WI
 43.93°N 90.81°W
Last Update:
5:41 pm CDT Apr 1, 2026
Forecast Valid:
5pm CDT Apr 1, 2026-6pm CDT Apr 8, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation