Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Great Lakes

Thunderstorms with strong wind gusts and hail will be possible today from Michigan into the Lower Great Lakes region. A significant and dangerous heat wave will expand from the Central U.S. into the Eastern U.S this weekend through much of next week. Numerous daily record highs and warm lows are likely. Read More >

Current conditions at

Wittman Regional Airport (KOSH)

Lat: 43.97°NLon: 88.56°WElev: 801ft.

A Few Clouds

83°F

28°C

Humidity 74%
Wind Speed SW 16 G 28 mph
Barometer 29.73 in (1005.2 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 21 Jun 9:53 am CDT
Extended Forecast for

4 Miles N Eldorado WI

Heat Advisory June 21, 12:00pm until June 23, 07:00pm
Click here for hazard details and duration
Heat Advisory
  • Today

    Today: Mostly cloudy, then gradually becoming sunny and hot, with a high near 92. Heat index values as high as 101. Breezy, with a south southwest wind 21 to 23 mph, with gusts as high as 40 mph.

    High: 92 °F

    Partly Sunny
    then Mostly
    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 78. Southwest wind 16 to 20 mph, with gusts as high as 31 mph.

    Low: 78 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 93. Heat index values as high as 101. South southwest wind 16 to 21 mph, with gusts as high as 32 mph.

    High: 93 °F

    Hot

  • Sunday Night

    Sunday Night: Clear, with a low around 78. South southwest wind around 17 mph, with gusts as high as 28 mph.

    Low: 78 °F

    Clear

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms after 1pm.  Sunny, with a high near 89. Southwest wind around 18 mph, with gusts as high as 29 mph.

    High: 89 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 70. Chance of precipitation is 60%.

    Low: 70 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm.  Mostly cloudy, with a high near 76. Chance of precipitation is 60%.

    High: 76 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 60. Chance of precipitation is 60%.

    Low: 60 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm.  High near 76. Chance of precipitation is 80%.

    High: 76 °F

    Showers

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny and hot, with a high near 92. Heat index values as high as 101. Breezy, with a south southwest wind 21 to 23 mph, with gusts as high as 40 mph.
Tonight
Mostly clear, with a low around 78. Southwest wind 16 to 20 mph, with gusts as high as 31 mph.
Sunday
Sunny and hot, with a high near 93. Heat index values as high as 101. South southwest wind 16 to 21 mph, with gusts as high as 32 mph.
Sunday Night
Clear, with a low around 78. South southwest wind around 17 mph, with gusts as high as 28 mph.
Monday
A 40 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 89. Southwest wind around 18 mph, with gusts as high as 29 mph.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 76. Chance of precipitation is 60%.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Wednesday
Showers and possibly a thunderstorm. High near 76. Chance of precipitation is 80%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 63. Chance of precipitation is 70%.
Thursday
Showers and possibly a thunderstorm. High near 80. Chance of precipitation is 80%.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61.
Friday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Eldorado WI
 43.91°N 88.63°W (Elev. 850 ft)
9:32 am CDT Jun 21, 2025
10am CDT Jun 21, 2025-6pm CDT Jun 27, 2025
 
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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