Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Canby Airfield (KCNB)

Lat: 44.73°NLon: 96.27°WElev: 1194ft.

Partly Cloudy

66°F

19°C

Humidity 71%
Wind Speed S 8 mph
Barometer 30.03 in
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 19 Aug 11:15 am CDT
Extended Forecast for

Altamont SD

  • Today

    Today: Mostly sunny, with a high near 78. Light and variable wind becoming southwest around 6 mph in the afternoon.

    High: 78 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 61. Light south southwest wind becoming southwest 9 to 14 mph in the evening. Winds could gust as high as 22 mph.

    Low: 61 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 82. Southwest wind 15 to 17 mph becoming west northwest in the afternoon. Winds could gust as high as 29 mph.

    High: 82 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 59. West northwest wind 5 to 8 mph.

    Low: 59 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 80. North wind 5 to 7 mph.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 59. North northwest wind around 7 mph.

    Low: 59 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 77. North northeast wind 7 to 11 mph, with gusts as high as 20 mph.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 57. Northeast wind 5 to 7 mph becoming light and variable.

    Low: 57 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 78. South southeast wind 5 to 9 mph.

    High: 78 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 78. Light and variable wind becoming southwest around 6 mph in the afternoon.
Tonight
Mostly clear, with a low around 61. Light south southwest wind becoming southwest 9 to 14 mph in the evening. Winds could gust as high as 22 mph.
Thursday
Mostly sunny, with a high near 82. Southwest wind 15 to 17 mph becoming west northwest in the afternoon. Winds could gust as high as 29 mph.
Thursday Night
Mostly clear, with a low around 59. West northwest wind 5 to 8 mph.
Friday
Sunny, with a high near 80. North wind 5 to 7 mph.
Friday Night
Mostly clear, with a low around 59. North northwest wind around 7 mph.
Saturday
Sunny, with a high near 77. North northeast wind 7 to 11 mph, with gusts as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 57. Northeast wind 5 to 7 mph becoming light and variable.
Sunday
Partly sunny, with a high near 78. South southeast wind 5 to 9 mph.
Sunday Night
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 61. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 81.
Monday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 63. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
Altamont SD
 44.85°N 96.69°W (Elev. 1808 ft)
11:01 am CDT Aug 19, 2026
11am CDT Aug 19, 2026-6pm CDT Aug 25, 2026
 
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Additional Resources

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