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

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Fair

87°F

31°C

Humidity 59%
Wind Speed SE 17 G 33 mph
Barometer 29.56 in (999.8 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 20 Jun 1:53 pm CDT
Extended Forecast for

Watertown SD

Heat Advisory until June 20, 09:00pm
Heat Advisory June 21, 01:00pm until June 21, 09:00pm
Click here for hazard details and duration
Heat Advisory
Heat Advisory
  •  
    Heat Advisory until June 20, 09:00pm

    NOW until 9:00pm Fri

    Heat Advisory

  • This Afternoon

    High: 92 °F

    Hot and
    Breezy

  • Tonight

    Tonight: A slight chance of showers and thunderstorms between 10pm and 1am. Some of the storms could be severe.  Mostly clear, with a low around 69. South wind 14 to 17 mph, with gusts as high as 30 mph.  Chance of precipitation is 20%.

    Low: 69 °F

    Severe
    Thunderstorms

  • Saturday

    Saturday: Sunny and hot, with a high near 97. Heat index values as high as 100. South wind 11 to 13 mph, with gusts as high as 23 mph.

    High: 97 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 71. West southwest wind 5 to 11 mph becoming northeast after midnight. Winds could gust as high as 21 mph.

    Low: 71 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 92. Breezy, with a south wind 14 to 22 mph, with gusts as high as 33 mph.

    High: 92 °F

    Hot and
    Breezy

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms.  Partly cloudy, with a low around 59. West southwest wind 11 to 18 mph becoming north northwest after midnight. Winds could gust as high as 28 mph.  Chance of precipitation is 50%.

    Low: 59 °F

    Chance
    T-storms

  • Monday

    Monday: Mostly sunny, with a high near 73. Northwest wind 11 to 14 mph, with gusts as high as 22 mph.

    High: 73 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 51. North northwest wind 6 to 10 mph becoming east northeast after midnight.

    Low: 51 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 92. Breezy, with a south southeast wind 18 to 22 mph, with gusts as high as 37 mph.
Tonight
A slight chance of showers and thunderstorms between 10pm and 1am. Some of the storms could be severe. Mostly clear, with a low around 69. South wind 14 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Saturday
Sunny and hot, with a high near 97. Heat index values as high as 100. South wind 11 to 13 mph, with gusts as high as 23 mph.
Saturday Night
Mostly clear, with a low around 71. West southwest wind 5 to 11 mph becoming northeast after midnight. Winds could gust as high as 21 mph.
Sunday
Sunny and hot, with a high near 92. Breezy, with a south wind 14 to 22 mph, with gusts as high as 33 mph.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 59. West southwest wind 11 to 18 mph becoming north northwest after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 50%.
Monday
Mostly sunny, with a high near 73. Northwest wind 11 to 14 mph, with gusts as high as 22 mph.
Monday Night
Mostly clear, with a low around 51. North northwest wind 6 to 10 mph becoming east northeast after midnight.
Tuesday
A slight chance of showers and thunderstorms. Mostly cloudy, with a high near 67. East wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Tuesday Night
Showers and thunderstorms likely, mainly after 1am. Cloudy, with a low around 56. Chance of precipitation is 70%.
Wednesday
Showers and thunderstorms likely. Cloudy, with a high near 71. Chance of precipitation is 60%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Chance of precipitation is 50%.
Thursday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 74. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Watertown SD
 44.91°N 97.17°W (Elev. 1755 ft)
2:00 pm CDT Jun 20, 2025
2pm CDT Jun 20, 2025-6pm CDT Jun 26, 2025
 
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Additional Resources

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