National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Hazardous Weather Conditions

Current conditions at

Atlantic (KAIO)

Lat: 41.4°NLon: 95.05°WElev: 1181ft.

Fair

79°F

26°C

Humidity 65%
Wind Speed SW 9 mph
Barometer 30.15 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 28 Aug 11:35 am CDT
Extended Forecast for

Lewis IA

  • Today

    Today: Mostly sunny, with a high near 84. South wind 7 to 10 mph.

    High: 84 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 69. South southeast wind 9 to 15 mph, with gusts as high as 23 mph.

    Low: 69 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms before 10am. Mostly cloudy, then gradually becoming sunny, with a high near 89. Windy, with a south wind 16 to 21 mph, with gusts as high as 30 mph.

    High: 89 °F

    Slight Chance
    T-storms and
    Windy

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 76. Breezy, with a south wind 14 to 16 mph, with gusts as high as 25 mph.

    Low: 76 °F

    Mostly Clear
    and Breezy
    then Mostly
    Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 93. South wind 13 to 15 mph, with gusts as high as 23 mph.

    High: 93 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 76.

    Low: 76 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 74.

    Low: 74 °F

    Partly Cloudy
    then Chance
    T-storms

  • Tuesday

    Tuesday: Partly sunny, with a high near 91.

    High: 91 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 84. South wind 7 to 10 mph.
Tonight
Mostly cloudy, with a low around 69. South southeast wind 9 to 15 mph, with gusts as high as 23 mph.
Saturday
A 20 percent chance of showers and thunderstorms before 10am. Mostly cloudy, then gradually becoming sunny, with a high near 89. Windy, with a south wind 16 to 21 mph, with gusts as high as 30 mph.
Saturday Night
Increasing clouds, with a low around 76. Breezy, with a south wind 14 to 16 mph, with gusts as high as 25 mph.
Sunday
Mostly sunny, with a high near 93. South wind 13 to 15 mph, with gusts as high as 23 mph.
Sunday Night
Partly cloudy, with a low around 76.
Monday
Mostly sunny, with a high near 91.
Monday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 74.
Tuesday
Partly sunny, with a high near 91.
Tuesday Night
Partly cloudy, with a low around 73.
Wednesday
Mostly sunny, with a high near 92.
Wednesday Night
Partly cloudy, with a low around 74.
Thursday
Mostly sunny, with a high near 91.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lewis IA
 41.31°N 95.09°W
Last Update:
11:36 am CDT Aug 28, 2026
Forecast Valid:
11am CDT Aug 28, 2026-6pm CDT Sep 3, 2026
 
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Additional Resources

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Chance of Precipitation