High Impact Winter Storm This Weekend

A high impact winter storm is expected Saturday night through Monday morning which could bring heavy snow, freezing rain, and blizzard conditions. Monitor the forecast for the latest updates and make appropriate preparations! Read More >

Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Overcast

35°F

2°C

Humidity 46%
Wind Speed Calm
Barometer 30.14 in (1022.1 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 14 Mar 11:55 am CDT
Extended Forecast for

Sparta WI

Winter Storm Warning March 14, 07:00pm until March 16, 01:00pm
Click here for hazard details and duration
Winter Storm Warning
  • This Afternoon

    This Afternoon: A slight chance of snow between 2pm and 4pm.  Mostly cloudy, with a high near 41. Southeast wind around 7 mph.  Chance of precipitation is 20%.

    High: 41 °F

    Slight Chance
    Snow

  • Tonight

    Tonight: Snow and sleet before 3am, then freezing rain and sleet, possibly mixed with snow between 3am and 4am, then freezing rain and sleet after 4am. Some thunder is also possible.  Low around 29. East wind 7 to 13 mph, with gusts as high as 28 mph.  Chance of precipitation is 90%. New ice accumulation of less than a 0.1 of an inch possible.  New snow and sleet accumulation of less than one inch possible.

    Low: 29 °F

    Snow then
    Wintry Mix

  • Sunday

    Sunday: Rain, snow, freezing rain, and sleet before 2pm, then snow, possibly mixed with sleet between 2pm and 3pm, then snow after 3pm. The snow and sleet could be heavy at times.  Patchy blowing snow after 1pm. High near 35. Breezy, with an east wind 14 to 21 mph becoming north in the afternoon. Winds could gust as high as 39 mph.  Chance of precipitation is 100%. New ice accumulation of less than a 0.1 of an inch possible.  New snow and sleet accumulation of 3 to 5 inches possible.

    High: 35 °F

    Wintry Mix
    and Patchy
    Blowing Snow

  • Sunday Night

    Sunday Night: Snow. The snow could be heavy at times.  Widespread blowing snow, mainly between 11pm and 1am. Low around 13. Wind chill values as low as -2. Windy, with a north wind 21 to 28 mph, with gusts as high as 49 mph.  Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

    Low: 13 °F

    Heavy Snow
    and Blowing
    Snow

  • Monday

    Monday: A 40 percent chance of snow before 1pm.  Patchy blowing snow before 8am, then patchy blowing snow after 11am. Mostly cloudy, with a high near 19. Blustery, with a northwest wind 17 to 21 mph, with gusts as high as 40 mph.  New snow accumulation of around an inch possible.

    High: 19 °F

    Chance Snow
    and Patchy
    Blowing Snow

  • Monday Night

    Monday Night: Partly cloudy, with a low around -5. Northwest wind 6 to 11 mph becoming light west  after midnight. Winds could gust as high as 24 mph.

    Low: -5 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 24. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 24 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Snow, mainly before 1am.  Low around 16. South wind 3 to 6 mph.  Chance of precipitation is 90%.

    Low: 16 °F

    Snow

  • Wednesday

    Wednesday: Mostly sunny, with a high near 44. Light and variable wind.

    High: 44 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A slight chance of snow between 2pm and 4pm. Mostly cloudy, with a high near 41. Southeast wind around 7 mph. Chance of precipitation is 20%.
Tonight
Snow and sleet before 3am, then freezing rain and sleet, possibly mixed with snow between 3am and 4am, then freezing rain and sleet after 4am. Some thunder is also possible. Low around 29. East wind 7 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New ice accumulation of less than a 0.1 of an inch possible. New snow and sleet accumulation of less than one inch possible.
Sunday
Rain, snow, freezing rain, and sleet before 2pm, then snow, possibly mixed with sleet between 2pm and 3pm, then snow after 3pm. The snow and sleet could be heavy at times. Patchy blowing snow after 1pm. High near 35. Breezy, with an east wind 14 to 21 mph becoming north in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 100%. New ice accumulation of less than a 0.1 of an inch possible. New snow and sleet accumulation of 3 to 5 inches possible.
Sunday Night
Snow. The snow could be heavy at times. Widespread blowing snow, mainly between 11pm and 1am. Low around 13. Wind chill values as low as -2. Windy, with a north wind 21 to 28 mph, with gusts as high as 49 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.
Monday
A 40 percent chance of snow before 1pm. Patchy blowing snow before 8am, then patchy blowing snow after 11am. Mostly cloudy, with a high near 19. Blustery, with a northwest wind 17 to 21 mph, with gusts as high as 40 mph. New snow accumulation of around an inch possible.
Monday Night
Partly cloudy, with a low around -5. Northwest wind 6 to 11 mph becoming light west after midnight. Winds could gust as high as 24 mph.
Tuesday
Mostly sunny, with a high near 24. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
Snow, mainly before 1am. Low around 16. South wind 3 to 6 mph. Chance of precipitation is 90%.
Wednesday
Mostly sunny, with a high near 44. Light and variable wind.
Wednesday Night
Mostly cloudy, with a low around 28. Calm wind.
Thursday
Mostly sunny, with a high near 50. Light southwest wind.
Thursday Night
Mostly cloudy, with a low around 30. Calm wind.
Friday
Partly sunny, with a high near 52. Calm wind becoming west around 6 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Sparta WI
 43.93°N 90.81°W
12:32 pm CDT Mar 14, 2026
12pm CDT Mar 14, 2026-6pm CDT Mar 20, 2026
 
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