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.

Overcast

31°F

-1°C

Humidity 81%
Wind Speed W 15 mph
Barometer 29.50 in (1000.3 mb)
Dewpoint 26°F (-3°C)
Visibility 8.00 mi
Wind Chill20°F (-7°C)
Last update 16 Jan 4:55 pm CST
Extended Forecast for

Sparta WI

  • This Afternoon

    This Afternoon: A 50 percent chance of snow. Cloudy, with a steady temperature around 28. West wind around 10 mph, with gusts as high as 25 mph. Total daytime snow accumulation of less than a half inch possible.

    High: 28 °F

    Chance Snow

  • Tonight

    Tonight: Snow likely, mainly after 8pm. Cloudy, with a low around 11. Wind chill values as low as zero. Northwest wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 11 °F

    Snow Likely

  • Saturday

    Saturday: Snow likely before noon, then a chance of flurries between noon and 1pm. Mostly cloudy, with a high near 18. Wind chill values as low as zero. Northwest wind 9 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 18 °F

    Snow Likely
    then Mostly
    Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 2. Wind chill values as low as -5. Northwest wind 3 to 8 mph. Winds could gust as high as 21 mph.

    Low: 2 °F

    Mostly Cloudy

  • Sunday

    Sunday: Snow likely. Mostly cloudy, with a high near 18. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 18 °F

    Snow Likely

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around -6. Northwest wind around 11 mph, with gusts as high as 28 mph.

    Low: -6 °F

    Mostly Cloudy

  • M.L.King Day

    M.L.King Day: Partly sunny and cold, with a high near 4. Northwest wind 8 to 14 mph, with gusts as high as 25 mph.

    High: 4 °F

    Cold

  • Monday Night

    Monday Night: Partly cloudy, with a low around -3. West wind 3 to 6 mph. Winds could gust as high as 20 mph.

    Low: -3 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 15. Southwest wind 3 to 6 mph.

    High: 15 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 50 percent chance of snow. Cloudy, with a steady temperature around 28. West wind around 10 mph, with gusts as high as 25 mph. Total daytime snow accumulation of less than a half inch possible.
Tonight
Snow likely, mainly after 8pm. Cloudy, with a low around 11. Wind chill values as low as zero. Northwest wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Saturday
Snow likely before noon, then a chance of flurries between noon and 1pm. Mostly cloudy, with a high near 18. Wind chill values as low as zero. Northwest wind 9 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Saturday Night
Mostly cloudy, with a low around 2. Wind chill values as low as -5. Northwest wind 3 to 8 mph. Winds could gust as high as 21 mph.
Sunday
Snow likely. Mostly cloudy, with a high near 18. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Sunday Night
Mostly cloudy, with a low around -6. Northwest wind around 11 mph, with gusts as high as 28 mph.
M.L.King Day
Partly sunny and cold, with a high near 4. Northwest wind 8 to 14 mph, with gusts as high as 25 mph.
Monday Night
Partly cloudy, with a low around -3. West wind 3 to 6 mph. Winds could gust as high as 20 mph.
Tuesday
Mostly sunny, with a high near 15. Southwest wind 3 to 6 mph.
Tuesday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 7. Calm wind.
Wednesday
A 20 percent chance of snow. Partly sunny, with a high near 21. Calm wind becoming west around 6 mph in the morning.
Wednesday Night
Mostly cloudy, with a low around 4. Light northwest wind.
Thursday
Partly sunny, with a high near 16. Calm wind becoming northwest around 6 mph.
Thursday Night
Mostly cloudy, with a low around 3. Light and variable wind.
Friday
A 20 percent chance of snow. Partly sunny, with a high near 21. Calm wind becoming southwest around 6 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:
4:11 pm CST Jan 16, 2026
Forecast Valid:
5pm CST Jan 16, 2026-6pm CST Jan 23, 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