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

Hazardous Weather Conditions

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Fair

42°F

6°C

Humidity 43%
Wind Speed SE 10 mph
Barometer 29.93 in (1014.1 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 29 Mar 12:53 am CDT
Extended Forecast for

Wallace SD

  • Overnight

    Overnight: Mostly cloudy, with a low around 35. South southeast wind around 7 mph.

    Low: 35 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy through mid morning, then gradual clearing, with a high near 68. Southeast wind 6 to 8 mph becoming west in the afternoon.

    High: 68 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 37. Northwest wind 6 to 10 mph becoming east southeast after midnight.

    Low: 37 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 65. East northeast wind 11 to 14 mph, with gusts as high as 23 mph.

    High: 65 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A slight chance of rain after 1am, mixing with snow after 4am. Mostly cloudy, with a low around 32. Northeast wind 10 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 20%.

    Low: 32 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Tuesday

    Tuesday: A slight chance of snow before 7am. Partly sunny, with a high near 42. Breezy, with a north northwest wind 18 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 10%.

    High: 42 °F

    Breezy.
    Slight Chance
    Snow then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 19. North northwest wind 9 to 17 mph, with gusts as high as 26 mph.

    Low: 19 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 45. East southeast wind 9 to 15 mph, with gusts as high as 24 mph.

    High: 45 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of snow after 1am. Partly cloudy, with a low around 30. East southeast wind 14 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    Low: 30 °F

    Partly Cloudy
    then Slight
    Chance Snow

Detailed Forecast

Overnight
Mostly cloudy, with a low around 35. South southeast wind around 7 mph.
Sunday
Mostly cloudy through mid morning, then gradual clearing, with a high near 68. Southeast wind 6 to 8 mph becoming west in the afternoon.
Sunday Night
Partly cloudy, with a low around 37. Northwest wind 6 to 10 mph becoming east southeast after midnight.
Monday
Mostly sunny, with a high near 65. East northeast wind 11 to 14 mph, with gusts as high as 23 mph.
Monday Night
A slight chance of rain after 1am, mixing with snow after 4am. Mostly cloudy, with a low around 32. Northeast wind 10 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 20%.
Tuesday
A slight chance of snow before 7am. Partly sunny, with a high near 42. Breezy, with a north northwest wind 18 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 10%.
Tuesday Night
Mostly clear, with a low around 19. North northwest wind 9 to 17 mph, with gusts as high as 26 mph.
Wednesday
Mostly sunny, with a high near 45. East southeast wind 9 to 15 mph, with gusts as high as 24 mph.
Wednesday Night
A slight chance of snow after 1am. Partly cloudy, with a low around 30. East southeast wind 14 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Thursday
A chance of snow before 1pm, then a chance of rain and snow. Partly sunny, with a high near 47. Breezy. Chance of precipitation is 30%.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 34. Breezy. Chance of precipitation is 40%.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 46. Breezy. Chance of precipitation is 50%.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 30. Chance of precipitation is 50%.
Saturday
A chance of rain and snow. Mostly cloudy, with a high near 41. Breezy. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Wallace SD
 45.07°N 97.48°W (Elev. 1814 ft)
Last Update:
12:36 am CDT Mar 29, 2026
Forecast Valid:
1am CDT Mar 29, 2026-6pm CDT Apr 4, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation