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

8°F

-13°C

Humidity 53%
Wind Speed Calm
Barometer 30.34 in (1030.7 mb)
Dewpoint -6°F (-21°C)
Visibility 10.00 mi
Last update 29 Jan 11:55 am CST
Extended Forecast for

Black River Falls WI

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 11. Wind chill values as low as -4. Northwest wind around 5 mph becoming calm.

    High: 11 °F

    Mostly Sunny

  • Tonight

    Tonight: A chance of flurries between 9pm and 1am. Mostly cloudy, with a low around -5. Calm wind.

    Low: -5 °F

    Chance
    Flurries

  • Friday

    Friday: Mostly sunny, with a high near 14. Wind chill values as low as -10. Calm wind becoming north 5 to 8 mph in the morning.

    High: 14 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around -4. Northwest wind around 5 mph becoming calm in the evening.

    Low: -4 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 21. Calm wind.

    High: 21 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 1. Light south wind.

    Low: 1 °F

    Partly Cloudy

  • Sunday

    Sunday: A 50 percent chance of snow. Partly sunny, with a high near 25. South wind 3 to 7 mph.

    High: 25 °F

    Chance Snow

  • Sunday Night

    Sunday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 14. Calm wind.

    Low: 14 °F

    Chance Snow
    then Mostly
    Cloudy

  • Monday

    Monday: Partly sunny, with a high near 28. Calm wind becoming northwest around 6 mph.

    High: 28 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 11. Wind chill values as low as -4. Northwest wind around 5 mph becoming calm.
Tonight
A chance of flurries between 9pm and 1am. Mostly cloudy, with a low around -5. Calm wind.
Friday
Mostly sunny, with a high near 14. Wind chill values as low as -10. Calm wind becoming north 5 to 8 mph in the morning.
Friday Night
Mostly clear, with a low around -4. Northwest wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 21. Calm wind.
Saturday Night
Partly cloudy, with a low around 1. Light south wind.
Sunday
A 50 percent chance of snow. Partly sunny, with a high near 25. South wind 3 to 7 mph.
Sunday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 14. Calm wind.
Monday
Partly sunny, with a high near 28. Calm wind becoming northwest around 6 mph.
Monday Night
Partly cloudy, with a low around 7. Calm wind.
Tuesday
A 20 percent chance of snow. Partly sunny, with a high near 26. Light northeast wind.
Tuesday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 9. Calm wind.
Wednesday
A 20 percent chance of snow. Partly sunny, with a high near 27. Calm wind becoming west around 5 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Black River Falls WI
 44.3°N 90.86°W
Last Update:
11:21 am CST Jan 29, 2026
Forecast Valid:
12pm CST Jan 29, 2026-6pm CST Feb 4, 2026
 
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Additional Resources

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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