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

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Overcast

19°F

-7°C

Humidity 50%
Wind Speed Calm
Barometer 30.39 in (1030.9 mb)
Dewpoint 4°F (-16°C)
Visibility 10.00 mi
Last update 1 Mar 1:55 am CST
Extended Forecast for

5 Miles SSW Sparta WI

  • Overnight

    Overnight: Mostly clear, with a low around 9. Calm wind.

    Low: 9 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 31. Calm wind.

    High: 31 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 17. Light and variable wind.

    Low: 17 °F

    Mostly Clear

  • Monday

    Monday: Increasing clouds, with a high near 41. South wind 3 to 6 mph.

    High: 41 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 31. Calm wind. New precipitation amounts of less than a tenth of an inch possible.

    Low: 31 °F

    Mostly Cloudy
    then Chance
    Rain

  • Tuesday

    Tuesday: A 30 percent chance of rain before noon. Mostly cloudy, with a high near 45. Calm wind.

    High: 45 °F

    Chance Rain
    then Mostly
    Cloudy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 29. Calm wind.

    Low: 29 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of rain. Mostly sunny, with a high near 46. Calm wind becoming east around 5 mph.

    High: 46 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain after midnight. Partly cloudy, with a low around 33. Calm wind.

    Low: 33 °F

    Partly Cloudy
    then Slight
    Chance Rain

Detailed Forecast

Overnight
Mostly clear, with a low around 9. Calm wind.
Sunday
Sunny, with a high near 31. Calm wind.
Sunday Night
Mostly clear, with a low around 17. Light and variable wind.
Monday
Increasing clouds, with a high near 41. South wind 3 to 6 mph.
Monday Night
A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 31. Calm wind. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
A 30 percent chance of rain before noon. Mostly cloudy, with a high near 45. Calm wind.
Tuesday Night
Partly cloudy, with a low around 29. Calm wind.
Wednesday
A 30 percent chance of rain. Mostly sunny, with a high near 46. Calm wind becoming east around 5 mph.
Wednesday Night
A 20 percent chance of rain after midnight. Partly cloudy, with a low around 33. Calm wind.
Thursday
A 30 percent chance of rain, mainly after noon. Mostly cloudy, with a high near 52. Calm wind becoming east around 5 mph in the afternoon.
Thursday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 38. Southeast wind around 6 mph.
Friday
Rain likely. Mostly cloudy, with a high near 57. South wind 6 to 8 mph becoming west in the afternoon. Chance of precipitation is 60%.
Friday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 34. Southwest wind around 6 mph.
Saturday
A 30 percent chance of rain. Partly sunny, with a high near 54. West wind around 7 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Sparta WI
 43.89°N 90.82°W
Last Update:
12:26 am CST Mar 1, 2026
Forecast Valid:
2am CST Mar 1, 2026-6pm CST Mar 7, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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