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.

Fair

4°F

-16°C

Humidity 80%
Wind Speed Calm
Barometer 30.04 in (1019.3 mb)
Dewpoint -1°F (-18°C)
Visibility 10.00 mi
Last update 22 Jan 4:55 am CST
Extended Forecast for

Melvina WI

Extreme Cold Watch January 23, 12:00pm until January 24, 12:00pm
Extreme Cold Warning January 23, 12:00am until January 23, 12:00pm
Click here for hazard details and duration
Extreme Cold Watch
Extreme Cold Warning

  • Overnight

    Overnight: A chance of flurries. Partly cloudy, with a low around 4. Wind chill values as low as -8. West wind around 9 mph, with gusts as high as 21 mph.

    Low: 4 °F

    Chance
    Flurries

  • Thursday

    Thursday: A chance of flurries. Patchy blowing snow between 1pm and 5pm. Partly sunny, with a temperature rising to near 13 by noon, then falling to around 3 during the remainder of the day. Wind chill values as low as -17. Breezy, with a west wind 8 to 13 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 32 mph.

    High: 13 °F⇓

    Chance
    Flurries and
    Patchy
    Blowing Snow

  • Thursday Night

    Thursday Night: A chance of flurries before 9pm. Partly cloudy, with a low around -19. Wind chill values as low as -42. Blustery, with a northwest wind 13 to 18 mph, with gusts as high as 32 mph.

    Low: -19 °F

    Chance
    Flurries and
    Blustery then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny and cold, with a high near -6. Wind chill values as low as -40. Northwest wind 5 to 11 mph, with gusts as high as 23 mph.

    High: -6 °F

    Cold

  • Friday Night

    Friday Night: Mostly cloudy, with a low around -19. Light northwest wind.

    Low: -19 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny and cold, with a high near 2. Calm wind.

    High: 2 °F

    Cold

  • Saturday Night

    Saturday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around -10. Calm wind.

    Low: -10 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Sunday

    Sunday: A 20 percent chance of snow. Partly sunny, with a high near 7. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 7 °F

    Slight Chance
    Snow

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around -10. West wind 3 to 5 mph.

    Low: -10 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A chance of flurries. Partly cloudy, with a low around 4. Wind chill values as low as -8. West wind around 9 mph, with gusts as high as 21 mph.
Thursday
A chance of flurries. Patchy blowing snow between 1pm and 5pm. Partly sunny, with a temperature rising to near 13 by noon, then falling to around 3 during the remainder of the day. Wind chill values as low as -17. Breezy, with a west wind 8 to 13 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 32 mph.
Thursday Night
A chance of flurries before 9pm. Partly cloudy, with a low around -19. Wind chill values as low as -42. Blustery, with a northwest wind 13 to 18 mph, with gusts as high as 32 mph.
Friday
Mostly sunny and cold, with a high near -6. Wind chill values as low as -40. Northwest wind 5 to 11 mph, with gusts as high as 23 mph.
Friday Night
Mostly cloudy, with a low around -19. Light northwest wind.
Saturday
Partly sunny and cold, with a high near 2. Calm wind.
Saturday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around -10. Calm wind.
Sunday
A 20 percent chance of snow. Partly sunny, with a high near 7. Calm wind becoming northwest around 6 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around -10. West wind 3 to 5 mph.
Monday
Mostly sunny, with a high near 12. Southwest wind 5 to 8 mph.
Monday Night
Partly cloudy, with a low around 0. West wind 5 to 7 mph, with gusts as high as 18 mph.
Tuesday
Mostly sunny, with a high near 19. West wind 5 to 7 mph.
Tuesday Night
Mostly cloudy, with a low around 1. Northwest wind around 6 mph.
Wednesday
Partly sunny, with a high near 14. Northwest wind 6 to 9 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Melvina WI
 43.8°N 90.79°W
Last Update:
3:16 am CST Jan 22, 2026
Forecast Valid:
5am CST Jan 22, 2026-6pm CST Jan 28, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation