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.

Partly Cloudy

43°F

6°C

Humidity 46%
Wind Speed E 12 G 18 mph
Barometer 30.15 in (1022.2 mb)
Dewpoint 23°F (-5°C)
Visibility 9.00 mi
Wind Chill37°F (3°C)
Last update 1 Apr 5:55 pm CDT
Extended Forecast for

2 Miles N Ontario 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 rain or freezing rain. Low around 31. East wind 10 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. Total nighttime ice accumulation of less than a 0.1 of an inch possible.

    Low: 31 °F

    Chance
    Showers then
    Rain/Freezing
    Rain

  • Thursday

    Thursday: Freezing rain before 8am, then rain or freezing rain between 8am and 9am, then rain showers after 9am. Some thunder is also possible. High near 55. East wind 11 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New ice accumulation of around a 0.1 of an inch possible.

    High: 55 °F

    Rain/Freezing
    Rain then
    Showers

  • Thursday Night

    Thursday Night: Showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Low around 33. South wind 7 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 33 °F

    Showers then
    Chance
    Showers

  • 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 55. Calm wind becoming east 5 to 7 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: 55 °F

    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm before 4am, then showers likely. Low around 37. East wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    Low: 37 °F

    Showers

  • Saturday

    Saturday: A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 49. Breezy, with a west wind 7 to 16 mph, with gusts as high as 25 mph.

    High: 49 °F

    Chance
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 29. Breezy, with a northwest wind 13 to 17 mph, with gusts as high as 28 mph.

    Low: 29 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 51. Northwest wind 10 to 14 mph, with gusts as high as 24 mph.

    High: 51 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A slight chance of rain and snow showers after 1am. Partly cloudy, with a low around 31. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 31 °F

    Mostly Clear
    then Slight
    Chance
    Rain/Snow

Detailed Forecast

Tonight
Rain showers before 4am, then rain or freezing rain. Low around 31. East wind 10 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. Total nighttime ice accumulation of less than a 0.1 of an inch possible.
Thursday
Freezing rain before 8am, then rain or freezing rain between 8am and 9am, then rain showers after 9am. Some thunder is also possible. High near 55. East wind 11 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New ice accumulation of around a 0.1 of an inch possible.
Thursday Night
Showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Low around 33. South wind 7 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%. 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 55. Calm wind becoming east 5 to 7 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 4am, then showers likely. Low around 37. East wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Saturday
A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 49. Breezy, with a west wind 7 to 16 mph, with gusts as high as 25 mph.
Saturday Night
Mostly cloudy, with a low around 29. Breezy, with a northwest wind 13 to 17 mph, with gusts as high as 28 mph.
Sunday
Mostly sunny, with a high near 51. Northwest wind 10 to 14 mph, with gusts as high as 24 mph.
Sunday Night
A slight chance of rain and snow showers after 1am. Partly cloudy, with a low around 31. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 20%.
Monday
A slight chance of rain and snow showers before 1pm, then a slight chance of rain showers. Partly sunny, with a high near 48. Northwest wind 5 to 10 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 3 to 7 mph. Chance of precipitation is 20%.
Tuesday
Sunny, with a high near 47. Light and variable 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 23 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Ontario WI
 43.75°N 90.58°W
Last Update:
5:41 pm CDT Apr 1, 2026
Forecast Valid:
6pm CDT Apr 1, 2026-6pm CDT Apr 8, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation