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Hazardous Weather Conditions

Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Fair

79°F

26°C

Humidity 74%
Wind Speed Calm
Barometer 30.21 in (1022.8 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 13 Jul 8:55 am CDT
Extended Forecast for

Sparta WI

Heat Advisory July 13, 11:00am until July 14, 09:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: Sunny, with a high near 93. Heat index values as high as 97. Light and variable wind becoming west 5 to 7 mph in the morning.

    High: 93 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 66. Light west wind.

    Low: 66 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 94. Heat index values as high as 100. Calm wind becoming west 5 to 7 mph in the morning.

    High: 94 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 68. Calm wind.

    Low: 68 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 94. Calm wind.

    High: 94 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 68. Calm wind.

    Low: 68 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 93. Calm wind.

    High: 93 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 69. Calm wind.

    Low: 69 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 92. Calm wind becoming southwest 5 to 8 mph in the morning.

    High: 92 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 93. Heat index values as high as 97. Light and variable wind becoming west 5 to 7 mph in the morning.
Tonight
Mostly clear, with a low around 66. Light west wind.
Tuesday
Sunny, with a high near 94. Heat index values as high as 100. Calm wind becoming west 5 to 7 mph in the morning.
Tuesday Night
Mostly clear, with a low around 68. Calm wind.
Wednesday
Sunny, with a high near 94. Calm wind.
Wednesday Night
Mostly clear, with a low around 68. Calm wind.
Thursday
Sunny, with a high near 93. Calm wind.
Thursday Night
Mostly clear, with a low around 69. Calm wind.
Friday
Sunny, with a high near 92. Calm wind becoming southwest 5 to 8 mph in the morning.
Friday Night
Mostly clear, with a low around 69. Southwest wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 90. Southwest wind 5 to 8 mph.
Saturday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 65. Light southwest wind.
Sunday
Sunny, with a high near 87. Calm wind becoming west 5 to 8 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sparta WI
 43.95°N 90.81°W
Last Update:
8:21 am CDT Jul 13, 2026
Forecast Valid:
9am CDT Jul 13, 2026-6pm CDT Jul 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