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Hazardous Weather Conditions

Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Fair

28°F

-2°C

Humidity 77%
Wind Speed Calm
Barometer 30.01 in (1017.5 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Last update 18 Apr 11:55 pm CDT
Extended Forecast for

Sparta WI

  • Overnight

    Overnight: Widespread frost after 5am. Otherwise, clear early, then becoming mostly cloudy, with a low around 29. Light west wind.

    Low: 29 °F

    Frost

  • Sunday

    Sunday: Scattered flurries with isolated snow showers before 7am, then isolated snow showers between 7am and 9am. Mostly cloudy, then gradually becoming sunny, with a high near 48. Light west wind becoming northwest 6 to 11 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 20%.

    High: 48 °F

    Isolated Snow
    Showers 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, mostly sunny, with a high near 56. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 56 °F

    Frost then
    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 41. South wind 3 to 7 mph. Winds could gust as high as 18 mph.

    Low: 41 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 73. Light and variable wind.

    High: 73 °F

    Sunny

  • Tuesday Night

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

    Low: 40 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 74. Calm wind becoming southeast 5 to 7 mph in the afternoon.

    High: 74 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 55. South wind around 7 mph, with gusts as high as 18 mph.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

Overnight
Widespread frost after 5am. Otherwise, clear early, then becoming mostly cloudy, with a low around 29. Light west wind.
Sunday
Scattered flurries with isolated snow showers before 7am, then isolated snow showers between 7am and 9am. Mostly cloudy, then gradually becoming sunny, with a high near 48. Light west wind becoming northwest 6 to 11 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 20%.
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, mostly sunny, with a high near 56. Calm wind becoming south 5 to 8 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 41. South wind 3 to 7 mph. Winds could gust as high as 18 mph.
Tuesday
Sunny, with a high near 73. Light and variable wind.
Tuesday Night
Mostly clear, with a low around 40. Calm wind.
Wednesday
Sunny, with a high near 74. Calm wind becoming southeast 5 to 7 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 55. South wind around 7 mph, with gusts as high as 18 mph.
Thursday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 77. Breezy, with a south wind 7 to 17 mph, with gusts as high as 26 mph.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 53. South wind 8 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.
Friday
A 50 percent chance of showers. Mostly cloudy, with a high near 65. West wind 6 to 11 mph, with gusts as high as 20 mph.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 37. Northwest wind 6 to 8 mph, with gusts as high as 18 mph.
Saturday
A 20 percent chance of showers. Mostly sunny, with a high near 58. Northwest wind 6 to 10 mph, with gusts as high as 18 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Sparta WI
 43.93°N 90.81°W
Last Update:
12:06 am CDT Apr 19, 2026
Forecast Valid:
1am CDT Apr 19, 2026-6pm CDT Apr 25, 2026
 
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