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

Storm Systems to Impact the Central and Eastern U.S. Through the Weekend

Two storm systems will track through the central and eastern U.S. today through this weekend with areas of gusty winds, rain and heavy snow. Severe thunderstorms and heavy to excessive rainfall is forecast today from the Lower Mississippi River Valley to the Tennessee Valley. Damaging winds, a few tornadoes, and areas of flooding are possible. Read More >

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Fair

16°F

-9°C

Humidity 88%
Wind Speed SW 9 mph
Barometer 30.14 in (1023.1 mb)
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Wind Chill5°F (-15°C)
Last update 10 Jan 1:53 am CST
Extended Forecast for

Hayti SD

  • Overnight

    Overnight: A chance of flurries with a slight chance of snow before 4am, then a chance of flurries between 4am and 5am. Mostly cloudy, with a steady temperature around 21. Calm wind becoming west northwest 5 to 7 mph. Chance of precipitation is 20%.

    Low: 21 °F

    Slight Chance
    Snow

  • Saturday

    Saturday: Partly sunny through mid morning, then becoming sunny, with a high near 23. Blustery, with a northwest wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 31 mph.

    High: 23 °F

    Sunny then
    Sunny and
    Blustery

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 8. Northwest wind 6 to 16 mph becoming west southwest after midnight. Winds could gust as high as 26 mph.

    Low: 8 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 37. South southwest wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 24 mph.

    High: 37 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 25. West wind 8 to 11 mph.

    Low: 25 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 45. Southwest wind 8 to 14 mph, with gusts as high as 22 mph.

    High: 45 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 38. West wind 13 to 17 mph, with gusts as high as 28 mph.

    Low: 38 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 47. Breezy, with a west northwest wind 17 to 23 mph, with gusts as high as 36 mph.

    High: 47 °F

    Mostly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: A slight chance of rain before midnight. Mostly cloudy, with a low around 21. Blustery, with a north northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    Low: 21 °F

    Slight Chance
    Rain and
    Blustery then
    Mostly Cloudy

Detailed Forecast

Overnight
A chance of flurries with a slight chance of snow before 4am, then a chance of flurries between 4am and 5am. Mostly cloudy, with a steady temperature around 21. Calm wind becoming west northwest 5 to 7 mph. Chance of precipitation is 20%.
Saturday
Partly sunny through mid morning, then becoming sunny, with a high near 23. Blustery, with a northwest wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 31 mph.
Saturday Night
Mostly clear, with a low around 8. Northwest wind 6 to 16 mph becoming west southwest after midnight. Winds could gust as high as 26 mph.
Sunday
Mostly sunny, with a high near 37. South southwest wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 24 mph.
Sunday Night
Partly cloudy, with a low around 25. West wind 8 to 11 mph.
Monday
Mostly sunny, with a high near 45. Southwest wind 8 to 14 mph, with gusts as high as 22 mph.
Monday Night
Mostly cloudy, with a low around 38. West wind 13 to 17 mph, with gusts as high as 28 mph.
Tuesday
Mostly sunny, with a high near 47. Breezy, with a west northwest wind 17 to 23 mph, with gusts as high as 36 mph.
Tuesday Night
A slight chance of rain before midnight. Mostly cloudy, with a low around 21. Blustery, with a north northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 29.
Wednesday Night
Mostly cloudy, with a low around 20.
Thursday
A slight chance of snow. Partly sunny, with a high near 40. Breezy. Chance of precipitation is 20%.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 24. Blustery. Chance of precipitation is 30%.
Friday
A chance of snow. Mostly cloudy, with a high near 30. Blustery. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hayti SD
 44.65°N 97.2°W (Elev. 1699 ft)
Last Update:
1:36 am CST Jan 10, 2026
Forecast Valid:
2am CST Jan 10, 2026-6pm CST Jan 16, 2026
 
Forecast Discussion
 
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Additional Resources

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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