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, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Fair

81°F

27°C

Humidity 69%
Wind Speed S 16 mph
Barometer 29.44 in (995.1 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 21 Jun 8:53 am CDT
Extended Forecast for

Kranzburg SD

Heat Advisory June 21, 01:00pm until June 21, 09:00pm
Click here for hazard details and duration
Heat Advisory
  • Today

    Today: Sunny and hot, with a high near 97. Heat index values as high as 101. South wind 10 to 14 mph, with gusts as high as 24 mph.

    High: 97 °F

    Hot

  • Tonight

    Tonight: Increasing clouds, with a low around 71. Southwest wind 8 to 13 mph becoming south southeast after midnight. Winds could gust as high as 21 mph.

    Low: 71 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Partly sunny through mid morning, then becoming sunny and hot, with a high near 93. Breezy, with a south wind 15 to 23 mph, with gusts as high as 37 mph.

    High: 93 °F

    Hot and
    Breezy

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms.  Increasing clouds, with a low around 60. Breezy, with a west southwest wind 13 to 20 mph becoming northwest after midnight. Winds could gust as high as 30 mph.  Chance of precipitation is 50%.

    Low: 60 °F

    Chance
    T-storms and
    Breezy

  • Monday

    Monday: Mostly sunny, with a high near 73. Northwest wind around 14 mph, with gusts as high as 23 mph.

    High: 73 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 52. North northwest wind 7 to 10 mph becoming northeast after midnight.

    Low: 52 °F

    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers after 1pm.  Partly sunny, with a high near 69. East wind 9 to 13 mph, with gusts as high as 21 mph.  Chance of precipitation is 20%.

    High: 69 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Cloudy, with a low around 57. East wind 9 to 11 mph, with gusts as high as 20 mph.  Chance of precipitation is 70%.

    Low: 57 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm.  Cloudy, with a high near 69. East northeast wind 10 to 14 mph, with gusts as high as 22 mph.  Chance of precipitation is 70%.

    High: 69 °F

    Showers
    Likely

Detailed Forecast

Today
Sunny and hot, with a high near 97. Heat index values as high as 101. South wind 10 to 14 mph, with gusts as high as 24 mph.
Tonight
Increasing clouds, with a low around 71. Southwest wind 8 to 13 mph becoming south southeast after midnight. Winds could gust as high as 21 mph.
Sunday
Partly sunny through mid morning, then becoming sunny and hot, with a high near 93. Breezy, with a south wind 15 to 23 mph, with gusts as high as 37 mph.
Sunday Night
A chance of showers and thunderstorms. Increasing clouds, with a low around 60. Breezy, with a west southwest wind 13 to 20 mph becoming northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 50%.
Monday
Mostly sunny, with a high near 73. Northwest wind around 14 mph, with gusts as high as 23 mph.
Monday Night
Mostly clear, with a low around 52. North northwest wind 7 to 10 mph becoming northeast after midnight.
Tuesday
A slight chance of showers after 1pm. Partly sunny, with a high near 69. East wind 9 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Cloudy, with a low around 57. East wind 9 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Wednesday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Cloudy, with a high near 69. East northeast wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Cloudy, with a low around 58. Chance of precipitation is 60%.
Thursday
A slight chance of showers and thunderstorms. Mostly cloudy, with a high near 71. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 56.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 77. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
Kranzburg SD
 44.89°N 96.9°W (Elev. 1998 ft)
8:46 am CDT Jun 21, 2025
9am CDT Jun 21, 2025-6pm CDT Jun 27, 2025
 
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