Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Overcast

53°F

12°C

Humidity 36%
Wind Speed Calm
Barometer 29.95 in (1015.2 mb)
Dewpoint 27°F (-3°C)
Visibility 9.00 mi
Last update 30 Apr 1:55 pm CDT
Extended Forecast for

Sparta WI

Freeze Warning May 1, 12:00am until May 1, 08:00am
Click here for hazard details and duration
Freeze Warning
  • This Afternoon

    This Afternoon: Partly sunny, with a steady temperature around 52. Calm wind becoming northwest 5 to 7 mph.

    High: 52 °F

    Partly Sunny

  • Tonight

    Tonight: Widespread frost, mainly after 1am.  Otherwise, partly cloudy, with a low around 27. Northwest wind 5 to 8 mph becoming calm  in the evening.

    Low: 27 °F

    Frost

  • Friday

    Friday: A chance of sprinkles between 1pm and 3pm, then a slight chance of showers after 3pm.  Widespread frost before 9am.  Otherwise, mostly sunny, with a high near 52. Calm wind becoming northwest 5 to 7 mph in the afternoon.  Chance of precipitation is 20%.

    High: 52 °F

    Frost then
    Slight Chance
    Showers

  • Friday Night

    Friday Night: Widespread frost, mainly after 2am.  Otherwise, partly cloudy, with a low around 29. Light north wind.

    Low: 29 °F

    Partly Cloudy
    then Frost

  • Saturday

    Saturday: Widespread frost before 8am.  Otherwise, mostly sunny, with a high near 60. Calm wind becoming west around 5 mph.

    High: 60 °F

    Frost then
    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 1am.  Mostly cloudy, with a low around 42. Calm wind becoming south around 5 mph after midnight.

    Low: 42 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers after 1pm.  Mostly sunny, with a high near 69. Southwest wind 5 to 9 mph, with gusts as high as 18 mph.

    High: 69 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 42. Light west wind.

    Low: 42 °F

    Partly Cloudy

  • Monday

    Monday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 72. Breezy, with a west wind 6 to 11 mph increasing to 15 to 20 mph in the afternoon.  Chance of precipitation is 30%.

    High: 72 °F

    Chance
    Showers and
    Breezy

Detailed Forecast

This Afternoon
Partly sunny, with a steady temperature around 52. Calm wind becoming northwest 5 to 7 mph.
Tonight
Widespread frost, mainly after 1am. Otherwise, partly cloudy, with a low around 27. Northwest wind 5 to 8 mph becoming calm in the evening.
Friday
A chance of sprinkles between 1pm and 3pm, then a slight chance of showers after 3pm. Widespread frost before 9am. Otherwise, mostly sunny, with a high near 52. Calm wind becoming northwest 5 to 7 mph in the afternoon. Chance of precipitation is 20%.
Friday Night
Widespread frost, mainly after 2am. Otherwise, partly cloudy, with a low around 29. Light north wind.
Saturday
Widespread frost before 8am. Otherwise, mostly sunny, with a high near 60. Calm wind becoming west around 5 mph.
Saturday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 42. Calm wind becoming south around 5 mph after midnight.
Sunday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 69. Southwest wind 5 to 9 mph, with gusts as high as 18 mph.
Sunday Night
Partly cloudy, with a low around 42. Light west wind.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 72. Breezy, with a west wind 6 to 11 mph increasing to 15 to 20 mph in the afternoon. Chance of precipitation is 30%.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 40. Northwest wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 21 mph.
Tuesday
A 30 percent chance of showers. Mostly sunny, with a high near 60. Light northwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Tuesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 36. Northwest wind around 6 mph becoming calm in the evening.
Wednesday
A 30 percent chance of showers. Mostly sunny, with a high near 57. Light northwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Sparta WI
 43.93°N 90.81°W
2:16 pm CDT Apr 30, 2026
2pm CDT Apr 30, 2026-6pm CDT May 6, 2026
 
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