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Hazardous Weather Conditions

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Fair

30°F

-1°C

Humidity 56%
Wind Speed SE 3 mph
Barometer 30.20 in (1024.5 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 20 Apr 1:53 am CDT
Extended Forecast for

Wallace SD

Red Flag Warning April 20, 11:00am until April 20, 08:00pm
Click here for hazard details and duration
Red Flag Warning

  • Overnight

    Overnight: Mostly clear, with a low around 26. South southeast wind 7 to 9 mph.

    Low: 26 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 67. Breezy, with a south southwest wind 14 to 24 mph, with gusts as high as 36 mph.

    High: 67 °F

    Sunny and
    Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 39. Southwest wind 6 to 10 mph becoming northeast after midnight.

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 72. Northeast wind around 9 mph becoming east southeast in the afternoon.

    High: 72 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 51. Southeast wind 10 to 14 mph, with gusts as high as 24 mph.

    Low: 51 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 85. Breezy, with a south southeast wind 14 to 24 mph, with gusts as high as 36 mph.

    High: 85 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: A slight chance of showers before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 57. Breezy, with a south wind 22 to 24 mph, with gusts as high as 38 mph. Chance of precipitation is 50%.

    Low: 57 °F

    Breezy.
    Slight Chance
    Showers then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers. Mostly sunny, with a high near 71. Breezy, with a south wind 22 to 29 mph becoming west southwest in the afternoon. Winds could gust as high as 41 mph. Chance of precipitation is 30%.

    High: 71 °F

    Chance
    Showers and
    Breezy

  • Thursday Night

    Thursday Night: A slight chance of showers before 1am. Partly cloudy, with a low around 35. Breezy, with a west wind 25 to 29 mph, with gusts as high as 40 mph. Chance of precipitation is 20%.

    Low: 35 °F

    Slight Chance
    Showers and
    Breezy

Detailed Forecast

Overnight
Mostly clear, with a low around 26. South southeast wind 7 to 9 mph.
Monday
Sunny, with a high near 67. Breezy, with a south southwest wind 14 to 24 mph, with gusts as high as 36 mph.
Monday Night
Mostly clear, with a low around 39. Southwest wind 6 to 10 mph becoming northeast after midnight.
Tuesday
Sunny, with a high near 72. Northeast wind around 9 mph becoming east southeast in the afternoon.
Tuesday Night
Mostly clear, with a low around 51. Southeast wind 10 to 14 mph, with gusts as high as 24 mph.
Wednesday
Mostly sunny, with a high near 85. Breezy, with a south southeast wind 14 to 24 mph, with gusts as high as 36 mph.
Wednesday Night
A slight chance of showers before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 57. Breezy, with a south wind 22 to 24 mph, with gusts as high as 38 mph. Chance of precipitation is 50%.
Thursday
A chance of showers. Mostly sunny, with a high near 71. Breezy, with a south wind 22 to 29 mph becoming west southwest in the afternoon. Winds could gust as high as 41 mph. Chance of precipitation is 30%.
Thursday Night
A slight chance of showers before 1am. Partly cloudy, with a low around 35. Breezy, with a west wind 25 to 29 mph, with gusts as high as 40 mph. Chance of precipitation is 20%.
Friday
Partly sunny, with a high near 51. Breezy.
Friday Night
Partly cloudy, with a low around 29. Blustery.
Saturday
Partly sunny, with a high near 50. Breezy.
Saturday Night
Mostly cloudy, with a low around 30.
Sunday
A slight chance of showers. Mostly sunny, with a high near 51. Chance of precipitation is 20%.
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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:
1:51 am CDT Apr 20, 2026
Forecast Valid:
2am CDT Apr 20, 2026-6pm CDT Apr 26, 2026
 
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