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Hazardous Weather Conditions

Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Overcast

39°F

4°C

Humidity 67%
Wind Speed Calm
Barometer 29.73 in (1007.2 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 18 Apr 4:55 am CDT
Extended Forecast for

Sparta WI

  • Today

    Today: Mostly sunny, with a high near 46. Breezy, with a northwest wind 10 to 18 mph.

    High: 46 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 29. West wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 22 mph.

    Low: 29 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: A chance of sprinkles and flurries before 10am, then a chance of sprinkles between 10am and 1pm. Widespread frost before 7am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 49. Light west wind becoming northwest 6 to 11 mph in the morning. Winds could gust as high as 20 mph.

    High: 49 °F

    Chance
    Sprinkles/Flurries
    then Sunny

  • Sunday Night

    Sunday Night: Widespread frost after 4am. Otherwise, mostly clear, with a low around 23. Northwest wind around 6 mph becoming calm in the evening.

    Low: 23 °F

    Mostly Clear
    then Frost

  • Monday

    Monday: Widespread frost before 8am. Otherwise, sunny, with a high near 57. Calm wind becoming south 5 to 9 mph in the afternoon.

    High: 57 °F

    Frost then
    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 43. South wind around 7 mph, with gusts as high as 18 mph.

    Low: 43 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 72. Light and variable wind becoming west around 5 mph in the afternoon.

    High: 72 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 40. Calm wind.

    Low: 40 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 74. Southeast wind 3 to 8 mph.

    High: 74 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 46. Breezy, with a northwest wind 10 to 18 mph.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 29. West wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 22 mph.
Sunday
A chance of sprinkles and flurries before 10am, then a chance of sprinkles between 10am and 1pm. Widespread frost before 7am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 49. Light west wind becoming northwest 6 to 11 mph in the morning. Winds could gust as high as 20 mph.
Sunday Night
Widespread frost after 4am. Otherwise, mostly clear, with a low around 23. Northwest wind around 6 mph becoming calm in the evening.
Monday
Widespread frost before 8am. Otherwise, sunny, with a high near 57. Calm wind becoming south 5 to 9 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 43. South wind around 7 mph, with gusts as high as 18 mph.
Tuesday
Sunny, with a high near 72. Light and variable wind becoming west around 5 mph in the afternoon.
Tuesday Night
Clear, with a low around 40. Calm wind.
Wednesday
Sunny, with a high near 74. Southeast wind 3 to 8 mph.
Wednesday Night
Partly cloudy, with a low around 55. Southeast wind around 8 mph, with gusts as high as 18 mph.
Thursday
A 40 percent chance of showers. Partly sunny, with a high near 77. South wind 7 to 15 mph, with gusts as high as 24 mph.
Thursday Night
Showers and possibly a thunderstorm. Low around 54. South wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.
Friday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 67. South wind 8 to 13 mph, with gusts as high as 21 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sparta WI
 43.93°N 90.81°W
Last Update:
5:06 am CDT Apr 18, 2026
Forecast Valid:
5am CDT Apr 18, 2026-6pm CDT Apr 24, 2026
 
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