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

Showers and Thunderstorms in the Southwest and Ohio Valley; Mountain Snow in the Northeast

Showers and thunderstorms, along with high-elevation snow, will begin to develop over parts of the Southwest late tonight and is expected to continue through Wednesday morning. Mountain snow over parts the Northeast will continue through Tuesday. A few strong to severe storms and heavy rainfall are possible across portions of the Lower Ohio Valley Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Overcast

32°F

0°C

Humidity 85%
Wind Speed NE 9 mph
Barometer 29.92 in (1014.7 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 18 Nov 3:53 am CST
Extended Forecast for

2 Miles ESE Watertown Municipal Airport SD

  • Overnight

    Overnight: Rain likely, possibly mixed with snow, mainly before 5am. Cloudy, with a low around 31. East northeast wind around 9 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 31 °F

    Rain/Snow
    Likely

  • Tuesday

    Tuesday: A slight chance of rain before 7am. Mostly cloudy, with a high near 39. East northeast wind 5 to 8 mph becoming southeast in the afternoon. Chance of precipitation is 20%.

    High: 39 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Cloudy, with a low around 32. South wind 3 to 6 mph.

    Low: 32 °F

    Cloudy

  • Wednesday

    Wednesday: Cloudy, then gradually becoming mostly sunny, with a high near 47. South wind 6 to 11 mph, with gusts as high as 21 mph.

    High: 47 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 32. South wind 6 to 8 mph becoming northwest after midnight.

    Low: 32 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 44. Northwest wind 7 to 10 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 around 6 mph.

    Low: 24 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 43. West northwest wind 5 to 8 mph becoming southwest in the afternoon.

    High: 43 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 28. South southwest wind 7 to 9 mph.

    Low: 28 °F

    Partly Cloudy

Detailed Forecast

Overnight
Rain likely, possibly mixed with snow, mainly before 5am. Cloudy, with a low around 31. East northeast wind around 9 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.
Tuesday
A slight chance of rain before 7am. Mostly cloudy, with a high near 39. East northeast wind 5 to 8 mph becoming southeast in the afternoon. Chance of precipitation is 20%.
Tuesday Night
Cloudy, with a low around 32. South wind 3 to 6 mph.
Wednesday
Cloudy, then gradually becoming mostly sunny, with a high near 47. South wind 6 to 11 mph, with gusts as high as 21 mph.
Wednesday Night
Mostly cloudy, with a low around 32. South wind 6 to 8 mph becoming northwest after midnight.
Thursday
Mostly sunny, with a high near 44. Northwest wind 7 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 24. West wind around 6 mph.
Friday
Sunny, with a high near 43. West northwest wind 5 to 8 mph becoming southwest in the afternoon.
Friday Night
Partly cloudy, with a low around 28. South southwest wind 7 to 9 mph.
Saturday
Partly sunny, with a high near 48.
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
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE Watertown Municipal Airport SD
 44.91°N 97.11°W (Elev. 1752 ft)
Last Update:
4:36 am CST Nov 18, 2025
Forecast Valid:
4am CST Nov 18, 2025-6pm CST Nov 24, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation