Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Fair

71°F

22°C

Humidity 97%
Wind Speed Calm
Barometer 29.78 in (1008.1 mb)
Dewpoint 71°F (22°C)
Visibility 7.00 mi
Last update 27 Jul 12:55 am CDT
Extended Forecast for

2 Miles S Tomah WI

Extreme Heat Warning July 27, 01:04am until July 27, 09:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning July 27, 01:04am until July 27, 09:00pm

    NOW until 9:00pm Mon

    Extreme Heat Warning

  • Overnight

    Low: 74 °F

    Chance
    T-storms

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly before 8am.  Patchy smoke after 3pm. Partly sunny, then gradually becoming sunny and hot, with a high near 95. Heat index values as high as 103. South wind 6 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph.

    High: 95 °F

    Chance
    T-storms then
    Patchy Smoke

  • Monday Night

    Monday Night: Partly cloudy, with a low around 63. North wind 6 to 11 mph becoming light northeast  after midnight. Winds could gust as high as 22 mph.

    Low: 63 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, then gradually becoming sunny, with a high near 87. Light northeast wind.

    High: 87 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 61. Calm wind.

    Low: 61 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88. Calm wind.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 64. Calm wind.

    Low: 64 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 85. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 85 °F

    Mostly Sunny

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms, mainly after 4am. Partly cloudy, with a low around 74. Calm wind becoming south around 5 mph.
Monday
A 30 percent chance of showers and thunderstorms, mainly before 8am. Patchy smoke after 3pm. Partly sunny, then gradually becoming sunny and hot, with a high near 95. Heat index values as high as 103. South wind 6 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph.
Monday Night
Partly cloudy, with a low around 63. North wind 6 to 11 mph becoming light northeast after midnight. Winds could gust as high as 22 mph.
Tuesday
Partly sunny, then gradually becoming sunny, with a high near 87. Light northeast wind.
Tuesday Night
Mostly clear, with a low around 61. Calm wind.
Wednesday
Sunny, with a high near 88. Calm wind.
Wednesday Night
Mostly clear, with a low around 64. Calm wind.
Thursday
Mostly sunny, with a high near 85. Calm wind becoming southwest around 5 mph in the afternoon.
Thursday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 65. Calm wind.
Friday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 79. Calm wind becoming west around 5 mph in the afternoon.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 62. Calm wind.
Saturday
Mostly sunny, with a high near 85. Calm wind becoming north around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 60. Light northeast wind.
Sunday
Sunny, with a high near 85. Light and variable wind.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Tomah WI
 43.97°N 90.51°W
12:02 am CDT Jul 27, 2026
1am CDT Jul 27, 2026-6pm CDT Aug 2, 2026
 
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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