Dangerous Heat in the Southwest; Severe Thunderstorms from the Central Plains into the Ohio Valley

Dangerous heat will build across the Southwest U.S. through the end of the week with daytime highs of 110-115°F. Isolated to widely scattered severe storms are expected across parts of the central and southern High Plains, Great Lakes into the Ohio Valley, and parts of the Ozarks to Lower Mississippi Valley today. Read More >

Hazardous Weather Conditions

Current conditions at

Atlantic (KAIO)

Lat: 41.4°NLon: 95.05°WElev: 1181ft.

Fog/Mist

64°F

18°C

Humidity 100%
Wind Speed Calm
Barometer 30.02 in
Dewpoint 64°F (18°C)
Visibility 4.00 mi
Last update 26 Aug 6:15 am CDT
Extended Forecast for

Griswold IA

  • Today

    Today: Patchy fog before 9am.  Otherwise, sunny, with a high near 83. Light northwest wind becoming north northwest 8 to 13 mph in the morning. Winds could gust as high as 18 mph.

    High: 83 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 59. North northwest wind around 6 mph becoming calm  in the evening.

    Low: 59 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 83. Calm wind becoming north around 6 mph in the afternoon.

    High: 83 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 58. Calm wind.

    Low: 58 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 86. Calm wind becoming south 5 to 9 mph in the morning.

    High: 86 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms before 1pm.  Mostly sunny, with a high near 90. Breezy.

    High: 90 °F

    Slight Chance
    T-storms and
    Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 75. Breezy.

    Low: 75 °F

    Partly Cloudy
    and Breezy

  • Sunday

    Sunday: Mostly sunny, with a high near 93. Breezy.

    High: 93 °F

    Mostly Sunny
    and Breezy

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, sunny, with a high near 83. Light northwest wind becoming north northwest 8 to 13 mph in the morning. Winds could gust as high as 18 mph.
Tonight
Mostly clear, with a low around 59. North northwest wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 83. Calm wind becoming north around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 58. Calm wind.
Friday
Sunny, with a high near 86. Calm wind becoming south 5 to 9 mph in the morning.
Friday Night
Partly cloudy, with a low around 68.
Saturday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 90. Breezy.
Saturday Night
Partly cloudy, with a low around 75. Breezy.
Sunday
Mostly sunny, with a high near 93. Breezy.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Monday
Partly sunny, with a high near 88.
Monday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Tuesday
Partly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
Griswold IA
 41.24°N 95.15°W
5:56 am CDT Aug 26, 2026
6am CDT Aug 26, 2026-6pm CDT Sep 1, 2026
 
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Additional Resources

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