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

86°F

30°C

Humidity 59%
Wind Speed S 15 G 29 mph
Barometer 29.99 in (1014.2 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 6 Jul 3:53 pm CDT
Extended Forecast for

3 Miles NW Watertown Municipal Airport SD

  • This Afternoon

    This Afternoon: A slight chance of showers and thunderstorms before 5pm. Mostly sunny and hot, with a high near 91. South wind around 17 mph. Chance of precipitation is 20%.

    High: 91 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms between 7pm and 1am. Mostly cloudy, with a low around 68. South wind 6 to 13 mph becoming east after midnight. Chance of precipitation is 40%.

    Low: 68 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after 1pm. Some of the storms could be severe. Partly sunny, with a high near 88. East wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    High: 88 °F

    Partly Sunny
    then Severe
    Thunderstorms

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3am. Low around 68. East wind 10 to 14 mph becoming north after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 68 °F

    Chance
    T-storms then
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Partly sunny, with a high near 80. North wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 80 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 60. North northeast wind 5 to 10 mph.

    Low: 60 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 81. East northeast wind around 6 mph.

    High: 81 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 61. East wind around 5 mph becoming light and variable after midnight.

    Low: 61 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 86. South wind 5 to 8 mph.

    High: 86 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A slight chance of showers and thunderstorms before 5pm. Mostly sunny and hot, with a high near 91. South wind around 17 mph. Chance of precipitation is 20%.
Tonight
A chance of showers and thunderstorms between 7pm and 1am. Mostly cloudy, with a low around 68. South wind 6 to 13 mph becoming east after midnight. Chance of precipitation is 40%.
Tuesday
A chance of showers and thunderstorms after 1pm. Some of the storms could be severe. Partly sunny, with a high near 88. East wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Tuesday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3am. Low around 68. East wind 10 to 14 mph becoming north after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Partly sunny, with a high near 80. North wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 60. North northeast wind 5 to 10 mph.
Thursday
Mostly sunny, with a high near 81. East northeast wind around 6 mph.
Thursday Night
Partly cloudy, with a low around 61. East wind around 5 mph becoming light and variable after midnight.
Friday
Mostly sunny, with a high near 86. South wind 5 to 8 mph.
Friday Night
Mostly clear, with a low around 65.
Saturday
Sunny, with a high near 89.
Saturday Night
Mostly clear, with a low around 69.
Sunday
Sunny and hot, with a high near 94.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Watertown Municipal Airport SD
 44.95°N 97.21°W (Elev. 1680 ft)
Last Update:
4:11 pm CDT Jul 6, 2026
Forecast Valid:
4pm CDT Jul 6, 2026-6pm CDT Jul 12, 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