Dangerous Cold Persists through Monday; Wintry Weather from the Northern Plains to the Great Lakes

Bitter cold temperatures and dangerous wind chills will persist from Florida to the Northeast through the day. Daily record low temperatures are forecast across the Southeast and Florida, with some all-time February low temperature records possible across Florida. An Alberta clipper will spread wintry precipitation across the Northern Plains today and into the upper Great Lakes into tonight. Read More >

Hazardous Weather Conditions

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Light Snow

14°F

-10°C

Humidity 80%
Wind Speed NE 3 mph
Barometer 30.14 in (1024.5 mb)
Dewpoint 9°F (-13°C)
Visibility 9.00 mi
Last update 2 Feb 6:53 pm CST
Extended Forecast for

4 Miles ESE Castlewood SD

  • Tonight

    Tonight: A chance of snow before midnight, then a slight chance of freezing rain between midnight and 1am.  Cloudy, with a low around 7. Northeast wind 3 to 6 mph.  Chance of precipitation is 30%.

    Low: 7 °F

    Chance Snow
    then Slight
    Chance
    Freezing Rain

  • Tuesday

    Tuesday: Partly sunny, with a high near 22. Light and variable wind.

    High: 22 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 14. Calm wind becoming northwest 5 to 9 mph in the evening.

    Low: 14 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 26. North northwest wind 7 to 11 mph becoming west in the afternoon. Winds could gust as high as 20 mph.

    High: 26 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 20. Southwest wind 6 to 13 mph, with gusts as high as 21 mph.

    Low: 20 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 42. West northwest wind 13 to 15 mph, with gusts as high as 24 mph.

    High: 42 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 22. North northwest wind around 14 mph, with gusts as high as 24 mph.

    Low: 22 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 28. North wind 7 to 14 mph, with gusts as high as 22 mph.

    High: 28 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 11. North northeast wind 6 to 10 mph becoming south southeast after midnight.

    Low: 11 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of snow before midnight, then a slight chance of freezing rain between midnight and 1am. Cloudy, with a low around 7. Northeast wind 3 to 6 mph. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 22. Light and variable wind.
Tuesday Night
Mostly cloudy, with a low around 14. Calm wind becoming northwest 5 to 9 mph in the evening.
Wednesday
Mostly cloudy, with a high near 26. North northwest wind 7 to 11 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
Mostly cloudy, with a low around 20. Southwest wind 6 to 13 mph, with gusts as high as 21 mph.
Thursday
Mostly sunny, with a high near 42. West northwest wind 13 to 15 mph, with gusts as high as 24 mph.
Thursday Night
Partly cloudy, with a low around 22. North northwest wind around 14 mph, with gusts as high as 24 mph.
Friday
Mostly sunny, with a high near 28. North wind 7 to 14 mph, with gusts as high as 22 mph.
Friday Night
Partly cloudy, with a low around 11. North northeast wind 6 to 10 mph becoming south southeast after midnight.
Saturday
Mostly sunny, with a high near 32.
Saturday Night
Mostly cloudy, with a low around 16.
Sunday
Mostly sunny, with a high near 37.
Sunday Night
Partly cloudy, with a low around 22.
Monday
Mostly sunny, with a high near 41.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Castlewood SD
 44.72°N 96.96°W (Elev. 1749 ft)
6:36 pm CST Feb 2, 2026
7pm CST Feb 2, 2026-6pm CST Feb 9, 2026
 
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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