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

Wausau Downtown Airport (KAUW)

Lat: 44.93°NLon: 89.63°WElev: 1200ft.

Fair

80°F

27°C

Humidity 52%
Wind Speed S 9 mph
Barometer 29.83 in (1009.8 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 20 Jun 2:54 pm CDT
Extended Forecast for

Merrill WI

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

    Tonight: A 40 percent chance of showers and thunderstorms, mainly before 1am.  Mostly cloudy, with a low around 68. Southeast wind 7 to 10 mph, with gusts as high as 22 mph.

    Low: 68 °F

    Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers and thunderstorms before 9am, then a slight chance of showers between 9am and 10am.  Partly sunny, with a high near 89. South southwest wind 13 to 17 mph, with gusts as high as 28 mph.  Chance of precipitation is 20%.

    High: 89 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 75. South southwest wind 9 to 11 mph, with gusts as high as 24 mph.

    Low: 75 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 91. South southwest wind 10 to 15 mph, with gusts as high as 26 mph.

    High: 91 °F

    Hot

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms after 1am.  Mostly clear, with a low around 74. South southwest wind around 13 mph, with gusts as high as 24 mph.

    Low: 74 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Monday

    Monday: Showers and thunderstorms likely, mainly after 1pm.  Partly sunny, with a high near 85. Chance of precipitation is 70%.

    High: 85 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 59.

    Low: 59 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 40 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.  Cloudy, with a low around 55. Chance of precipitation is 60%.

    Low: 55 °F

    Showers
    Likely

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 68. Southeast wind 7 to 10 mph, with gusts as high as 22 mph.
Saturday
A slight chance of showers and thunderstorms before 9am, then a slight chance of showers between 9am and 10am. Partly sunny, with a high near 89. South southwest wind 13 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 75. South southwest wind 9 to 11 mph, with gusts as high as 24 mph.
Sunday
Sunny and hot, with a high near 91. South southwest wind 10 to 15 mph, with gusts as high as 26 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 74. South southwest wind around 13 mph, with gusts as high as 24 mph.
Monday
Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 85. Chance of precipitation is 70%.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59.
Tuesday
A 40 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. Cloudy, with a low around 55. Chance of precipitation is 60%.
Wednesday
Showers and possibly a thunderstorm. High near 68. Chance of precipitation is 80%.
Wednesday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 58. Chance of precipitation is 70%.
Thursday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 70. Chance of precipitation is 70%.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 57.
Friday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
Merrill WI
 45.19°N 89.67°W (Elev. 1293 ft)
1:56 pm CDT Jun 20, 2025
3pm CDT Jun 20, 2025-6pm CDT Jun 27, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database