Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Watertown, Watertown Municipal Airport (KATY)

Lat: 44.9°NLon: 97.15°WElev: 1745ft.

Fair

62°F

17°C

Humidity 90%
Wind Speed SE 6 mph
Barometer 29.98 in (1014.8 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 19 Aug 11:53 pm CDT
Extended Forecast for

Garden City SD

  • Overnight

    Overnight: Mostly clear, with a low around 62. South southwest wind 8 to 13 mph.

    Low: 62 °F

    Mostly Clear

  • Thursday

    Thursday: A chance of sprinkles before 10am.  Mostly sunny, with a high near 83. South southwest wind 11 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 24 mph.

    High: 83 °F

    Chance
    Sprinkles

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 60. North northwest wind 5 to 10 mph becoming northeast after midnight.

    Low: 60 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 82. North wind 5 to 8 mph.

    High: 82 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60. North northeast wind around 8 mph.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 78. North northeast wind 8 to 11 mph.

    High: 78 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 58. North northeast wind around 8 mph becoming east southeast after midnight.

    Low: 58 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 78. Southeast wind 9 to 14 mph.

    High: 78 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers, then a chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 62. Southeast wind around 13 mph.  Chance of precipitation is 40%.

    Low: 62 °F

    Slight Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Overnight
Mostly clear, with a low around 62. South southwest wind 8 to 13 mph.
Thursday
A chance of sprinkles before 10am. Mostly sunny, with a high near 83. South southwest wind 11 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 24 mph.
Thursday Night
Mostly clear, with a low around 60. North northwest wind 5 to 10 mph becoming northeast after midnight.
Friday
Sunny, with a high near 82. North wind 5 to 8 mph.
Friday Night
Mostly clear, with a low around 60. North northeast wind around 8 mph.
Saturday
Sunny, with a high near 78. North northeast wind 8 to 11 mph.
Saturday Night
Partly cloudy, with a low around 58. North northeast wind around 8 mph becoming east southeast after midnight.
Sunday
Partly sunny, with a high near 78. Southeast wind 9 to 14 mph.
Sunday Night
A slight chance of showers, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 62. Southeast wind around 13 mph. Chance of precipitation is 40%.
Monday
Mostly sunny, with a high near 82.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 64. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 82.
Tuesday Night
Mostly clear, with a low around 61.
Wednesday
Mostly sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
Garden City SD
 44.97°N 97.57°W (Elev. 1864 ft)
12:36 am CDT Aug 20, 2026
12am CDT Aug 20, 2026-6pm CDT Aug 26, 2026
 
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Additional Resources

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