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

65°F

18°C

Humidity 96%
Wind Speed Calm
Barometer 29.87 in (1011.3 mb)
Dewpoint 64°F (18°C)
Visibility 9.00 mi
Last update 13 Aug 3:55 am CDT
Extended Forecast for

Viroqua WI

  • Today

    Today: Showers and thunderstorms likely before 4pm, then a chance of showers. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 77. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Showers
    Likely and
    Patchy Fog

  • Tonight

    Tonight: A slight chance of showers before 7pm, then a slight chance of showers after 5am. Mostly cloudy, with a low around 62. East wind around 6 mph. Chance of precipitation is 10%.

    Low: 62 °F

    Slight Chance
    Showers

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 79. East wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 64. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 64 °F

    Showers

  • Saturday

    Saturday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 82. Southeast wind 6 to 8 mph becoming southwest in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 82 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. South wind around 5 mph becoming light and variable. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 66 °F

    Showers
    Likely

  • Sunday

    Sunday: Mostly cloudy, with a high near 80. Northwest wind 5 to 8 mph.

    High: 80 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 60. North wind 3 to 6 mph.

    Low: 60 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 78. Light and variable wind.

    High: 78 °F

    Mostly Sunny

Detailed Forecast

Today
Showers and thunderstorms likely before 4pm, then a chance of showers. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 77. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A slight chance of showers before 7pm, then a slight chance of showers after 5am. Mostly cloudy, with a low around 62. East wind around 6 mph. Chance of precipitation is 10%.
Friday
A chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 79. East wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and possibly a thunderstorm. Low around 64. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 82. Southeast wind 6 to 8 mph becoming southwest in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. South wind around 5 mph becoming light and variable. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Mostly cloudy, with a high near 80. Northwest wind 5 to 8 mph.
Sunday Night
Partly cloudy, with a low around 60. North wind 3 to 6 mph.
Monday
Mostly sunny, with a high near 78. Light and variable wind.
Monday Night
Mostly clear, with a low around 59. Calm wind.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 79. Calm wind becoming southwest 5 to 7 mph in the morning.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Southwest wind around 5 mph.
Wednesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 78. West wind 5 to 7 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Viroqua WI
 43.56°N 90.89°W
Last Update:
1:26 am CDT Aug 13, 2026
Forecast Valid:
5am CDT Aug 13, 2026-6pm CDT Aug 19, 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