Severe Weather and Heavy Rain from the Great Lakes to the Mid-Atlantic; Heat Persists in the East

Widespread strong thunderstorms with damaging winds and locally heavy rain are expected from the Upper Ohio Valley into the southern Mid-Atlantic today and portions of the central Appalachians and Carolinas on Saturday. Monsoonal moisture will bring a flash flooding threat to the Desert Southwest. Sweltering heat persists from the Plains to the southern Mid-Atlantic through tonight. Read More >

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

2 Miles N Lewistown MO

Extreme Heat Warning September 4, 08:20pm until September 5, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning September 4, 08:20pm until September 5, 08:00pm

    NOW until 8:00pm Sat

    Extreme Heat Warning

  • Tonight

    Low: 74 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 98. Heat index values as high as 106. Light and variable wind.

    High: 98 °F

    Hot

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 72. Calm wind becoming east around 5 mph after midnight.

    Low: 72 °F

    Partly Cloudy

  • Sunday

    Sunday: Isolated showers and thunderstorms after 1pm.  Mostly sunny, with a high near 90. East wind around 6 mph.  Chance of precipitation is 20%.

    High: 90 °F

    Partly Sunny
    then Isolated
    T-storms

  • Sunday Night

    Sunday Night: Isolated showers and thunderstorms before 10pm.  Mostly clear, with a low around 67. East wind around 6 mph.  Chance of precipitation is 20%.

    Low: 67 °F

    Isolated
    T-storms then
    Mostly Clear

  • Labor Day

    Labor Day: Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny and hot, with a high near 97.

    High: 97 °F

    Hot

Detailed Forecast

Tonight
Mostly clear, with a low around 74. Calm wind.
Saturday
Sunny and hot, with a high near 98. Heat index values as high as 106. Light and variable wind.
Saturday Night
Partly cloudy, with a low around 72. Calm wind becoming east around 5 mph after midnight.
Sunday
Isolated showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. East wind around 6 mph. Chance of precipitation is 20%.
Sunday Night
Isolated showers and thunderstorms before 10pm. Mostly clear, with a low around 67. East wind around 6 mph. Chance of precipitation is 20%.
Labor Day
Mostly sunny, with a high near 89.
Monday Night
Mostly clear, with a low around 69.
Tuesday
Mostly sunny and hot, with a high near 97.
Tuesday Night
Mostly clear, with a low around 76.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 96.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Lewistown MO
 40.11°N 91.8°W (Elev. 600 ft)
6:36 pm CDT Sep 4, 2026
8pm CDT Sep 4, 2026-6pm CDT Sep 11, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database