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.

Fair

9°F

-13°C

Humidity 88%
Wind Speed Calm
Barometer 30.58 in (1037.3 mb)
Dewpoint 6°F (-14°C)
Visibility 10.00 mi
Last update 28 Mar 6:55 am CDT
Extended Forecast for

Sparta WI

  • Today

    Today: Sunny, with a high near 54. Breezy, with a light southwest wind increasing to 13 to 18 mph in the morning. Winds could gust as high as 30 mph.

    High: 54 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Tonight

    Tonight: Partly cloudy, with a low around 35. South wind 6 to 10 mph, with gusts as high as 23 mph.

    Low: 35 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 66. Southwest wind 6 to 10 mph.

    High: 66 °F

    Mostly Sunny

  • Sunday Night

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

    Low: 40 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 74. Calm wind becoming south 5 to 9 mph in the morning. Winds could gust as high as 18 mph.

    High: 74 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Showers likely. Mostly cloudy, with a low around 50. South wind around 7 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 50 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A 40 percent chance of showers. Mostly cloudy, with a high near 62. Northwest wind 7 to 14 mph, with gusts as high as 22 mph.

    High: 62 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 28. Northwest wind 7 to 13 mph, with gusts as high as 23 mph.

    Low: 28 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Sunny, with a high near 49. Northeast wind around 6 mph.

    High: 49 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 54. Breezy, with a light southwest wind increasing to 13 to 18 mph in the morning. Winds could gust as high as 30 mph.
Tonight
Partly cloudy, with a low around 35. South wind 6 to 10 mph, with gusts as high as 23 mph.
Sunday
Mostly sunny, with a high near 66. Southwest wind 6 to 10 mph.
Sunday Night
Mostly clear, with a low around 40. Calm wind.
Monday
Mostly sunny, with a high near 74. Calm wind becoming south 5 to 9 mph in the morning. Winds could gust as high as 18 mph.
Monday Night
Showers likely. Mostly cloudy, with a low around 50. South wind around 7 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
A 40 percent chance of showers. Mostly cloudy, with a high near 62. Northwest wind 7 to 14 mph, with gusts as high as 22 mph.
Tuesday Night
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 28. Northwest wind 7 to 13 mph, with gusts as high as 23 mph.
Wednesday
Sunny, with a high near 49. Northeast wind around 6 mph.
Wednesday Night
Mostly clear, with a low around 26. East wind 5 to 7 mph.
Thursday
A slight chance of rain and snow showers. Sunny, with a high near 50. East wind 8 to 15 mph. Chance of precipitation is 20%.
Thursday Night
A 30 percent chance of showers. Partly cloudy, with a low around 31. Southeast wind 9 to 13 mph, with gusts as high as 23 mph.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 56. Southeast wind 8 to 10 mph, with gusts as high as 20 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:
5:01 am CDT Mar 28, 2026
Forecast Valid:
7am CDT Mar 28, 2026-6pm CDT Apr 3, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation