Heavy Rain and Flash Flooding in the West; Heat Expands in the Central U.S.

Monsoonal moisture will produce showers and thunderstorms with heavy rain over parts of the Southwest, Great Basin, and Central Rockies through Monday. Flash flooding is possible, especially in and around burn scars and in areas of steep terrain. Heat will persist across the Central U.S. early this week, spreading into the Ohio Valley and Mid-Atlantic later this week. Read More >

Hazardous Weather Conditions

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

A Few Clouds

73°F

23°C

Humidity 90%
Wind Speed NW 18 G 26 mph
Barometer 29.79 in (1007.4 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 31 Aug 1:53 am CDT
Extended Forecast for

Lake Norden SD

  • Overnight

    Overnight: Partly cloudy, with a low around 65. North northwest wind 5 to 8 mph.

    Low: 65 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 84. North northwest wind 5 to 8 mph.

    High: 84 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 61. Light southwest wind.

    Low: 61 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers after 3pm.  Increasing clouds, with a high near 82. Calm wind becoming east around 6 mph in the afternoon.  Chance of precipitation is 20%.

    High: 82 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before 7pm, then showers likely and possibly a thunderstorm between 7pm and 1am, then a slight chance of showers after 1am.  Mostly cloudy, with a low around 60. East northeast wind around 6 mph.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84. Southeast wind 6 to 9 mph.

    High: 84 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 64. East southeast wind around 9 mph.  Chance of precipitation is 40%.

    Low: 64 °F

    Mostly Clear
    then Chance
    T-storms

  • Thursday

    Thursday: Sunny, with a high near 87. South southeast wind 9 to 11 mph, with gusts as high as 20 mph.

    High: 87 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 66. Southeast wind around 7 mph.

    Low: 66 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 65. North northwest wind 5 to 8 mph.
Monday
Sunny, with a high near 84. North northwest wind 5 to 8 mph.
Monday Night
Partly cloudy, with a low around 61. Light southwest wind.
Tuesday
A slight chance of showers after 3pm. Increasing clouds, with a high near 82. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 20%.
Tuesday Night
A slight chance of showers and thunderstorms before 7pm, then showers likely and possibly a thunderstorm between 7pm and 1am, then a slight chance of showers after 1am. Mostly cloudy, with a low around 60. East northeast wind around 6 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Mostly sunny, with a high near 84. Southeast wind 6 to 9 mph.
Wednesday Night
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 64. East southeast wind around 9 mph. Chance of precipitation is 40%.
Thursday
Sunny, with a high near 87. South southeast wind 9 to 11 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 66. Southeast wind around 7 mph.
Friday
Sunny and hot, with a high near 90.
Friday Night
Mostly clear, with a low around 69.
Saturday
Mostly sunny, with a high near 88.
Saturday Night
A chance of showers. Partly cloudy, with a low around 68. Chance of precipitation is 30%.
Sunday
A slight chance of showers. Mostly sunny, with a high near 85. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
Lake Norden SD
 44.59°N 97.2°W (Elev. 1660 ft)
2:06 am CDT Aug 31, 2026
2am CDT Aug 31, 2026-6pm CDT Sep 6, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database