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.

Overcast

69°F

21°C

Humidity 82%
Wind Speed Calm
Barometer 29.93 in (1013.4 mb)
Dewpoint 63°F (17°C)
Visibility 8.00 mi
Last update 25 Jul 5:55 am CDT
Extended Forecast for

Warrens WI

Extreme Heat Warning July 26, 12:00pm until July 26, 09:00pm
Click here for hazard details and duration
Extreme Heat Warning

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 87. Southwest wind 5 to 8 mph.

    High: 87 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Increasing clouds, with a low around 69. Light southwest wind.

    Low: 69 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly sunny, with a high near 93. Heat index values as high as 102. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 93 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 71. Southwest wind 3 to 7 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Chance
    T-storms then
    Showers
    Likely

  • Monday

    Monday: Mostly sunny, with a high near 92. West wind 5 to 10 mph, with gusts as high as 21 mph.

    High: 92 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 66. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 66 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 88. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 63. Calm wind.

    Low: 63 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 89. Light and variable wind.

    High: 89 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 87. Southwest wind 5 to 8 mph.
Tonight
Increasing clouds, with a low around 69. Light southwest wind.
Sunday
Mostly sunny, with a high near 93. Heat index values as high as 102. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 71. Southwest wind 3 to 7 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Mostly sunny, with a high near 92. West wind 5 to 10 mph, with gusts as high as 21 mph.
Monday Night
Partly cloudy, with a low around 66. Northwest wind 5 to 7 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 88. Calm wind becoming northwest around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 63. Calm wind.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 89. Light and variable wind.
Wednesday Night
Partly cloudy, with a low around 64. Calm wind.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. Light south wind.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 64. Calm wind.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. Calm wind becoming west around 5 mph in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Warrens WI
 44.12°N 90.51°W
Last Update:
4:57 am CDT Jul 25, 2026
Forecast Valid:
6am CDT Jul 25, 2026-6pm CDT Jul 31, 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