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

Storm Impacting the Southwest U.S.; Above Normal Temperatures Further East

A storm system will shift across the southwest U.S. through Thursday with widespread showers and isolated thunderstorms. Isolated flooding is possible. High-elevation snow is also expected in parts of Nevada and the southern Sierra Nevada range. East of this storm, above average temperatures will challenge or break daily record high temperatures this week in the southern Plains and southeast U.S. Read More >

Hazardous Weather Conditions

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Overcast

34°F

1°C

Humidity 73%
Wind Speed E 3 mph
Barometer 29.97 in (1016.3 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 18 Nov 6:53 am CST
Extended Forecast for

Wallace SD

  • Today

    Today: Partly sunny, with a high near 41. East northeast wind 6 to 8 mph becoming south southeast in the afternoon.

    High: 41 °F

    Partly Sunny

  • Tonight

    Tonight: Patchy fog between 3am and 4am. Otherwise, cloudy, with a low around 32. South wind around 7 mph.

    Low: 32 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: Cloudy, then gradually becoming mostly sunny, with a high near 48. South wind 7 to 11 mph, with gusts as high as 21 mph.

    High: 48 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 32. South wind 6 to 9 mph becoming northwest after midnight.

    Low: 32 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 44. Northwest wind 8 to 11 mph, with gusts as high as 20 mph.

    High: 44 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 24. West wind 5 to 7 mph.

    Low: 24 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 43. West northwest wind 6 to 9 mph becoming south southwest in the afternoon.

    High: 43 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 28. South southwest wind around 9 mph.

    Low: 28 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 47. West wind 9 to 13 mph, with gusts as high as 22 mph.

    High: 47 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 41. East northeast wind 6 to 8 mph becoming south southeast in the afternoon.
Tonight
Patchy fog between 3am and 4am. Otherwise, cloudy, with a low around 32. South wind around 7 mph.
Wednesday
Cloudy, then gradually becoming mostly sunny, with a high near 48. South wind 7 to 11 mph, with gusts as high as 21 mph.
Wednesday Night
Partly cloudy, with a low around 32. South wind 6 to 9 mph becoming northwest after midnight.
Thursday
Mostly sunny, with a high near 44. Northwest wind 8 to 11 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 24. West wind 5 to 7 mph.
Friday
Sunny, with a high near 43. West northwest wind 6 to 9 mph becoming south southwest in the afternoon.
Friday Night
Partly cloudy, with a low around 28. South southwest wind around 9 mph.
Saturday
Mostly sunny, with a high near 47. West wind 9 to 13 mph, with gusts as high as 22 mph.
Saturday Night
Partly cloudy, with a low around 30.
Sunday
Mostly sunny, with a high near 48.
Sunday Night
Partly cloudy, with a low around 30.
Monday
Mostly sunny, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Wallace SD
 45.07°N 97.48°W (Elev. 1814 ft)
Last Update:
6:26 am CST Nov 18, 2025
Forecast Valid:
7am CST Nov 18, 2025-6pm CST Nov 24, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation