Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Fair

-19°F

-28°C

Humidity 74%
Wind Speed Calm
Barometer 30.32 in (1030.3 mb)
Dewpoint -25°F (-32°C)
Visibility 10.00 mi
Last update 29 Jan 5:55 am CST
Extended Forecast for

Sparta WI

  • Today

    Today: Sunny, with a high near 12. Wind chill values as low as -15. Calm wind.

    High: 12 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around -5. Calm wind.

    Low: -5 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 14. Wind chill values as low as -11. Calm wind becoming north 5 to 7 mph in the morning.

    High: 14 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around -2. Light northwest wind.

    Low: -2 °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 3. Light south wind.

    Low: 3 °F

    Partly Cloudy

  • Sunday

    Sunday: A 50 percent chance of snow.  Partly sunny, with a high near 25. Southwest 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 15. Calm wind.

    Low: 15 °F

    Chance Snow
    then Mostly
    Cloudy

  • Monday

    Monday: Partly sunny, with a high near 29. Calm wind becoming northwest around 6 mph.

    High: 29 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 12. Wind chill values as low as -15. Calm wind.
Tonight
Partly cloudy, with a low around -5. Calm wind.
Friday
Mostly sunny, with a high near 14. Wind chill values as low as -11. Calm wind becoming north 5 to 7 mph in the morning.
Friday Night
Mostly clear, with a low around -2. Light northwest wind.
Saturday
Sunny, with a high near 21. Calm wind.
Saturday Night
Partly cloudy, with a low around 3. Light south wind.
Sunday
A 50 percent chance of snow. Partly sunny, with a high near 25. Southwest wind 3 to 7 mph.
Sunday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 15. Calm wind.
Monday
Partly sunny, with a high near 29. Calm wind becoming northwest around 6 mph.
Monday Night
Mostly cloudy, with a low around 9. 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 11. Calm wind.
Wednesday
A 30 percent chance of snow. Partly sunny, with a high near 27. Light west wind.
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ABOUT THIS FORECAST

 
Point Forecast:
Sparta WI
 43.93°N 90.81°W
5:57 am CST Jan 29, 2026
6am CST Jan 29, 2026-6pm CST Feb 4, 2026
 
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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