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.

Fair

5°F

-15°C

Humidity 83%
Wind Speed Calm
Barometer 30.25 in (1026.7 mb)
Dewpoint 1°F (-17°C)
Visibility 10.00 mi
Last update 30 Dec 12:55 am CST
Extended Forecast for

3 Miles SW Warrens WI

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 6. Wind chill values as low as -7. West wind around 8 mph, with gusts as high as 20 mph.

    Low: 6 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Snow likely, mainly between noon and 4pm. Mostly cloudy, with a high near 26. Wind chill values as low as -6. Southwest wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 26 °F

    Chance Snow
    then Snow
    Likely

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 14. Northwest wind 6 to 10 mph, with gusts as high as 21 mph.

    Low: 14 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Wednesday

    Wednesday: A 50 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 22. Northwest wind 8 to 11 mph, with gusts as high as 21 mph. New snow accumulation of less than a half inch possible.

    High: 22 °F

    Slight Chance
    Snow then
    Chance Snow

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around -3. Northwest wind 5 to 7 mph, with gusts as high as 18 mph.

    Low: -3 °F

    Mostly Clear

  • New Year's Day

    New Year's Day: Partly sunny, with a high near 14. West wind around 6 mph.

    High: 14 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 2. Light west wind.

    Low: 2 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 20. Northwest wind 3 to 6 mph.

    High: 20 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 5. Light northwest wind.

    Low: 5 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 6. Wind chill values as low as -7. West wind around 8 mph, with gusts as high as 20 mph.
Tuesday
Snow likely, mainly between noon and 4pm. Mostly cloudy, with a high near 26. Wind chill values as low as -6. Southwest wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Tuesday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 14. Northwest wind 6 to 10 mph, with gusts as high as 21 mph.
Wednesday
A 50 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 22. Northwest wind 8 to 11 mph, with gusts as high as 21 mph. New snow accumulation of less than a half inch possible.
Wednesday Night
Mostly clear, with a low around -3. Northwest wind 5 to 7 mph, with gusts as high as 18 mph.
New Year's Day
Partly sunny, with a high near 14. West wind around 6 mph.
Thursday Night
Mostly cloudy, with a low around 2. Light west wind.
Friday
Mostly sunny, with a high near 20. Northwest wind 3 to 6 mph.
Friday Night
Partly cloudy, with a low around 5. Light northwest wind.
Saturday
Mostly sunny, with a high near 23. Calm wind becoming west around 5 mph.
Saturday Night
Mostly cloudy, with a low around 10. South wind 3 to 6 mph.
Sunday
Partly sunny, with a high near 31. South wind around 7 mph.
Sunday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 16. West wind around 6 mph.
Monday
Partly sunny, with a high near 31. West wind 5 to 7 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Warrens WI
 44.09°N 90.54°W
Last Update:
11:32 pm CST Dec 29, 2025
Forecast Valid:
1am CST Dec 30, 2025-6pm CST Jan 5, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation