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

Watertown (KRYV)

Lat: 43.17°NLon: 88.72°WElev: 814ft.

Fair and Breezy

91°F

33°C

Humidity 56%
Wind Speed S 23 G 35 mph
Barometer 29.70 in
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index100°F (38°C)
Last update 21 Jun 3:15 pm CDT
Extended Forecast for

2 Miles NNE Watertown WI

Heat Advisory June 21, 03:41pm until June 23, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory June 21, 03:41pm until June 23, 07:00pm

    NOW until 7:00pm Mon

    Heat Advisory

  • Tonight

    Low: 78 °F

    Mostly Clear
    and Windy
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 94. Heat index values as high as 102. Southwest wind around 15 mph, with gusts as high as 30 mph.

    High: 94 °F

    Hot

  • Sunday Night

    Sunday Night: Clear, with a low around 77. Southwest wind around 15 mph.

    Low: 77 °F

    Clear

  • Monday

    Monday: A 20 percent chance of showers after 1pm.  Sunny and hot, with a high near 93. Heat index values as high as 99. Southwest wind around 15 mph, with gusts as high as 25 mph.

    High: 93 °F

    Sunny then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 69. Southwest wind 5 to 10 mph becoming northwest after midnight.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Chance
    T-storms then
    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 84. Northwest wind around 5 mph becoming east in the afternoon.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 84 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 64. Southeast wind around 5 mph.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 64 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm.  High near 83. Southeast wind 5 to 10 mph becoming south in the afternoon.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 83 °F

    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 78. Windy, with a southwest wind 15 to 25 mph, with gusts as high as 40 mph.
Sunday
Sunny and hot, with a high near 94. Heat index values as high as 102. Southwest wind around 15 mph, with gusts as high as 30 mph.
Sunday Night
Clear, with a low around 77. Southwest wind around 15 mph.
Monday
A 20 percent chance of showers after 1pm. Sunny and hot, with a high near 93. Heat index values as high as 99. Southwest wind around 15 mph, with gusts as high as 25 mph.
Monday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 69. Southwest wind 5 to 10 mph becoming northwest after midnight. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 84. Northwest wind around 5 mph becoming east in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. Southeast wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers and possibly a thunderstorm. High near 83. Southeast wind 5 to 10 mph becoming south in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 65. Chance of precipitation is 70%.
Thursday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 84. Chance of precipitation is 70%.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Friday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Watertown WI
 43.22°N 88.71°W (Elev. 899 ft)
1:54 pm CDT Jun 21, 2025
3pm CDT Jun 21, 2025-6pm CDT Jun 28, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

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