National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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 >

Hazardous Weather Conditions

Current conditions at

Wausau Downtown Airport (KAUW)

Lat: 44.93°NLon: 89.63°WElev: 1200ft.

Overcast

87°F

31°C

Humidity 63%
Wind Speed SW 13 G 22 mph
Barometer 29.62 in (1002.4 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 21 Jun 2:54 pm CDT
Extended Forecast for

5 Miles NNE Marathon WI

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

    NOW until 7:00pm Mon

    Heat Advisory

  • This Afternoon

    High: 89 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 75. Southwest wind 10 to 14 mph, with gusts as high as 28 mph.

    Low: 75 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 90. Heat index values as high as 100. South southwest wind 13 to 16 mph, with gusts as high as 28 mph.

    High: 90 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 75. South southwest wind around 14 mph, with gusts as high as 25 mph.

    Low: 75 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 86. Southwest wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.

    High: 86 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 50%.

    Low: 62 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 75. Chance of precipitation is 50%.

    High: 75 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely after 1am. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.

    Low: 58 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Partly sunny, with a high near 89. Southwest wind around 18 mph, with gusts as high as 30 mph.
Tonight
Partly cloudy, with a low around 75. Southwest wind 10 to 14 mph, with gusts as high as 28 mph.
Sunday
Mostly sunny and hot, with a high near 90. Heat index values as high as 100. South southwest wind 13 to 16 mph, with gusts as high as 28 mph.
Sunday Night
Mostly clear, with a low around 75. South southwest wind around 14 mph, with gusts as high as 25 mph.
Monday
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 86. Southwest wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 50%.
Tuesday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 75. Chance of precipitation is 50%.
Tuesday Night
A chance of showers and thunderstorms, then showers likely after 1am. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.
Wednesday
Showers and possibly a thunderstorm. High near 69. Chance of precipitation is 90%.
Wednesday Night
Showers and possibly a thunderstorm. Low around 58. Chance of precipitation is 80%.
Thursday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 70. Chance of precipitation is 70%.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 58.
Friday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 73.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 59.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNE Marathon WI
 45.04°N 89.86°W (Elev. 1299 ft)
Last Update:
3:06 pm CDT Jun 21, 2025
Forecast Valid:
3pm CDT Jun 21, 2025-6pm CDT Jun 28, 2025
 
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