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

11°F

-12°C

Humidity 54%
Wind Speed Calm
Barometer 30.00 in (1017.8 mb)
Dewpoint -3°F (-19°C)
Visibility 10.00 mi
Last update 17 Mar 12:55 am CDT
Extended Forecast for

4 Miles NW Melvina WI

  • Overnight

    Overnight: Mostly clear, with a low around -3. Wind chill values as low as -13. Northwest wind 8 to 10 mph, with gusts as high as 21 mph.

    Low: -3 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 10 percent chance of snow after 5pm. Increasing clouds, with a high near 22. Wind chill values as low as -15. West wind 5 to 9 mph becoming south in the afternoon.

    High: 22 °F

    Sunny then
    Slight Chance
    Snow

  • Tuesday Night

    Tuesday Night: Snow before 4am, then a chance of snow and freezing rain. Low around 16. South wind 9 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. Little or no ice accumulation expected. New snow accumulation of 1 to 3 inches possible.

    Low: 16 °F

    Snow then
    Wintry Mix

  • Wednesday

    Wednesday: A 20 percent chance of snow before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 45. West wind around 8 mph.

    High: 45 °F

    Slight Chance
    Snow then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 32. South wind 3 to 5 mph.

    Low: 32 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Thursday

    Thursday: Mostly sunny, with a high near 51. Southwest wind 5 to 9 mph becoming northwest in the morning.

    High: 51 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 34. Southwest wind 5 to 8 mph.

    Low: 34 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 55. Southwest wind around 7 mph.

    High: 55 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 33. West wind around 6 mph becoming southeast in the evening.

    Low: 33 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around -3. Wind chill values as low as -13. Northwest wind 8 to 10 mph, with gusts as high as 21 mph.
Tuesday
A 10 percent chance of snow after 5pm. Increasing clouds, with a high near 22. Wind chill values as low as -15. West wind 5 to 9 mph becoming south in the afternoon.
Tuesday Night
Snow before 4am, then a chance of snow and freezing rain. Low around 16. South wind 9 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. Little or no ice accumulation expected. New snow accumulation of 1 to 3 inches possible.
Wednesday
A 20 percent chance of snow before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 45. West wind around 8 mph.
Wednesday Night
A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 32. South wind 3 to 5 mph.
Thursday
Mostly sunny, with a high near 51. Southwest wind 5 to 9 mph becoming northwest in the morning.
Thursday Night
Mostly cloudy, with a low around 34. Southwest wind 5 to 8 mph.
Friday
Partly sunny, with a high near 55. Southwest wind around 7 mph.
Friday Night
Mostly cloudy, with a low around 33. West wind around 6 mph becoming southeast in the evening.
Saturday
Mostly sunny, with a high near 58. South wind 6 to 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 34. West wind around 10 mph becoming north after midnight. Winds could gust as high as 21 mph.
Sunday
Partly sunny, with a high near 52. North wind around 11 mph, with gusts as high as 21 mph.
Sunday Night
Mostly cloudy, with a low around 25. North wind 6 to 9 mph.
Monday
Partly sunny, with a high near 45. Northeast wind 6 to 9 mph becoming southeast in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Melvina WI
 43.84°N 90.85°W
Last Update:
1:06 am CDT Mar 17, 2026
Forecast Valid:
1am CDT Mar 17, 2026-6pm CDT Mar 23, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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