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 >

Hazardous Weather Conditions

Current conditions at

Keokuk Municipal Airport (KEOK)

Lat: 40.46°NLon: 91.43°WElev: 676ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Elvaston IL

  • Tonight

    Tonight: Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and midnight. Some of the storms could produce heavy rainfall.  Patchy fog after 5am.  Otherwise, mostly cloudy, with a low around 65. Northeast wind around 5 mph.  Chance of precipitation is 60%.

    Low: 65 °F

    Heavy Rain
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 81. Northeast wind around 5 mph.

    High: 81 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 64. Calm wind becoming east around 5 mph.

    Low: 64 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 84. Light and variable wind becoming west 5 to 10 mph in the morning.

    High: 84 °F

    Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers after 1am.  Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear
    then Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 62.

    Low: 62 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and midnight. Some of the storms could produce heavy rainfall. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 65. Northeast wind around 5 mph. Chance of precipitation is 60%.
Thursday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 81. Northeast wind around 5 mph.
Thursday Night
Mostly clear, with a low around 64. Calm wind becoming east around 5 mph.
Friday
Sunny, with a high near 84. Light and variable wind becoming west 5 to 10 mph in the morning.
Friday Night
A 30 percent chance of showers after 1am. Mostly clear, with a low around 66.
Saturday
Sunny, with a high near 82.
Saturday Night
Mostly clear, with a low around 63.
Sunday
Mostly sunny, with a high near 80.
Sunday Night
Mostly cloudy, with a low around 62.
Monday
Mostly sunny, with a high near 81.
Monday Night
Partly cloudy, with a low around 65.
Tuesday
Mostly sunny, with a high near 84.
Tuesday Night
Partly cloudy, with a low around 67.
Wednesday
Mostly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
Elvaston IL
 40.39°N 91.25°W (Elev. 646 ft)
6:52 pm CDT Aug 19, 2026
6pm CDT Aug 19, 2026-6pm CDT Aug 26, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database