Severe Thunderstorms in the Northern Plains and Upper Midwest; Critical Fire Weather in the West; Dangerous Heat in the Central and Eastern U.S.

Severe thunderstorms are likely today across the northern Plains and into the upper Mississippi Valley. Gusty winds and dry conditions will result in widespread critical fire weather through Saturday across parts of the Four Corners region and the Great Basin. 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. Read More >

Current conditions at

Clintonville Municipal Airport (KCLI)

Lat: 44.62°NLon: 88.73°WElev: 810ft.

Mostly Cloudy

74°F

23°C

Humidity 79%
Wind Speed S 10 mph
Barometer 29.75 in
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 21 Jun 2:35 am CDT
Extended Forecast for

Marion WI

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

    Overnight: Mostly cloudy, with a low around 69. South wind around 8 mph, with gusts as high as 20 mph.

    Low: 69 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny and hot, with a high near 93. Heat index values as high as 100. South southwest wind 14 to 20 mph, with gusts as high as 32 mph.

    High: 93 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 78. Southwest wind 10 to 14 mph, with gusts as high as 25 mph.

    Low: 78 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 95. Heat index values as high as 105. South southwest wind 11 to 17 mph, with gusts as high as 29 mph.

    High: 95 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 78. South southwest wind around 14 mph, with gusts as high as 24 mph.

    Low: 78 °F

    Mostly Clear

  • Monday

    Monday: Showers likely and possibly a thunderstorm after 1pm.  Sunny, with a high near 89. Chance of precipitation is 60%.

    High: 89 °F

    Sunny then
    Showers
    Likely

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 65.

    Low: 65 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 74.

    High: 74 °F

    Chance
    Showers then
    Chance
    T-storms

  • 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 58. Chance of precipitation is 70%.

    Low: 58 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Overnight
Mostly cloudy, with a low around 69. South wind around 8 mph, with gusts as high as 20 mph.
Saturday
Partly sunny and hot, with a high near 93. Heat index values as high as 100. South southwest wind 14 to 20 mph, with gusts as high as 32 mph.
Saturday Night
Mostly clear, with a low around 78. Southwest wind 10 to 14 mph, with gusts as high as 25 mph.
Sunday
Sunny and hot, with a high near 95. Heat index values as high as 105. South southwest wind 11 to 17 mph, with gusts as high as 29 mph.
Sunday Night
Mostly clear, with a low around 78. South southwest wind around 14 mph, with gusts as high as 24 mph.
Monday
Showers likely and possibly a thunderstorm after 1pm. Sunny, with a high near 89. Chance of precipitation is 60%.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 74.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.
Wednesday
Showers and possibly a thunderstorm. High near 71. Chance of precipitation is 80%.
Wednesday Night
Showers and possibly a thunderstorm. Low around 59. Chance of precipitation is 80%.
Thursday
Showers and possibly a thunderstorm. High near 77. Chance of precipitation is 80%.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59.
Friday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 76.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Marion WI
 44.67°N 88.91°W (Elev. 837 ft)
2:36 am CDT Jun 21, 2025
2am 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