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

Dangerous Heat in the West; Coastal Flooding & High Rip Current Risk through the Weekend on the East Coast; Flash Flooding Concerns in the Southeast and Southwest

A dangerous, record heat wave continues across portions of the West through Tuesday. High rip current risk and dangerous surf continue through the weekend. There are flash flooding concerns through the weekend for portions of the Southeast and Southwest. Read More >

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Mostly Cloudy

63°F

17°C

Humidity 65%
Wind Speed NW 17 G 24 mph
Barometer 30.18 in (1021.7 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 23 Aug 12:53 pm CDT
Extended Forecast for

Watertown SD

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 65. Northwest wind around 16 mph, with gusts as high as 24 mph.

    High: 65 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 48. North northwest wind 5 to 10 mph.

    Low: 48 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 65. North northwest wind 6 to 11 mph, with gusts as high as 22 mph.

    High: 65 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 45. North northwest wind 5 to 10 mph becoming light north in the evening.

    Low: 45 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 67. Calm wind becoming north around 6 mph in the afternoon.

    High: 67 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 46. North wind around 5 mph becoming calm in the evening.

    Low: 46 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 71. Calm wind becoming south around 5 mph in the afternoon.

    High: 71 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 52. Southeast wind 6 to 8 mph.

    Low: 52 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 75. South wind 8 to 10 mph.

    High: 75 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 65. Northwest wind around 16 mph, with gusts as high as 24 mph.
Tonight
Mostly clear, with a low around 48. North northwest wind 5 to 10 mph.
Sunday
Mostly sunny, with a high near 65. North northwest wind 6 to 11 mph, with gusts as high as 22 mph.
Sunday Night
Mostly clear, with a low around 45. North northwest wind 5 to 10 mph becoming light north in the evening.
Monday
Sunny, with a high near 67. Calm wind becoming north around 6 mph in the afternoon.
Monday Night
Mostly clear, with a low around 46. North wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 71. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 52. Southeast wind 6 to 8 mph.
Wednesday
Mostly sunny, with a high near 75. South wind 8 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 56.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Partly cloudy, with a low around 55.
Friday
Partly sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Watertown SD
 44.91°N 97.17°W (Elev. 1755 ft)
Last Update:
1:14 pm CDT Aug 23, 2025
Forecast Valid:
1pm CDT Aug 23, 2025-6pm CDT Aug 29, 2025
 
Forecast Discussion
 
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Additional Resources

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