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.

Light Unknown Precip

12°F

-11°C

Humidity 82%
Wind Speed Calm
Barometer 29.75 in (1009.0 mb)
Dewpoint 8°F (-13°C)
Visibility 2.50 mi
Last update 17 Jan 3:55 am CST
Extended Forecast for

5 Miles SSW Sparta WI

  • Overnight

    Overnight: Snow. Low around 11. West wind around 6 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than one inch possible.

    Low: 11 °F

    Snow

  • Saturday

    Saturday: Snow likely, mainly before noon. Mostly cloudy, with a high near 20. Northwest wind 8 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 20 °F

    Snow Likely
    then Slight
    Chance Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 2. Wind chill values as low as -8. Northwest wind 6 to 10 mph, with gusts as high as 22 mph.

    Low: 2 °F

    Mostly Cloudy

  • Sunday

    Sunday: Snow. High near 17. Wind chill values as low as -5. Southwest wind 5 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.

    High: 17 °F

    Snow

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around -5. Blustery, with a northwest wind 14 to 18 mph, with gusts as high as 30 mph.

    Low: -5 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Cloudy

  • M.L.King Day

    M.L.King Day: Partly sunny and cold, with a high near 4. Northwest wind 9 to 14 mph, with gusts as high as 28 mph.

    High: 4 °F

    Cold

  • Monday Night

    Monday Night: Partly cloudy, with a low around -4. West wind 3 to 8 mph. Winds could gust as high as 20 mph.

    Low: -4 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 17. Southwest wind 3 to 6 mph.

    High: 17 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 10. Light and variable wind becoming west around 5 mph after midnight.

    Low: 10 °F

    Chance Snow

Detailed Forecast

Overnight
Snow. Low around 11. West wind around 6 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than one inch possible.
Saturday
Snow likely, mainly before noon. Mostly cloudy, with a high near 20. Northwest wind 8 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. 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 -8. Northwest wind 6 to 10 mph, with gusts as high as 22 mph.
Sunday
Snow. High near 17. Wind chill values as low as -5. Southwest wind 5 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.
Sunday Night
Mostly cloudy, with a low around -5. Blustery, with a northwest wind 14 to 18 mph, with gusts as high as 30 mph.
M.L.King Day
Partly sunny and cold, with a high near 4. Northwest wind 9 to 14 mph, with gusts as high as 28 mph.
Monday Night
Partly cloudy, with a low around -4. West wind 3 to 8 mph. Winds could gust as high as 20 mph.
Tuesday
Mostly sunny, with a high near 17. Southwest wind 3 to 6 mph.
Tuesday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 10. Light and variable wind becoming west around 5 mph after midnight.
Wednesday
A 20 percent chance of snow before noon. Partly sunny, with a high near 20. West wind 5 to 9 mph, with gusts as high as 18 mph.
Wednesday Night
Mostly cloudy, with a low around 3. West wind 3 to 6 mph.
Thursday
Partly sunny, with a high near 14. West wind 3 to 6 mph.
Thursday Night
Mostly cloudy, with a low around 0. West wind 3 to 5 mph.
Friday
A 20 percent chance of snow. Partly sunny, with a high near 15. Southwest wind 5 to 7 mph becoming northwest in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Sparta WI
 43.89°N 90.82°W
Last Update:
4:41 am CST Jan 17, 2026
Forecast Valid:
4am CST Jan 17, 2026-6pm CST Jan 23, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation