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Excessive Rainfall Potential for the Southeast; Heat Expands for Center of the Nation; Critical Fire Weather for Pacific Northwest

Flash flooding threatens areas from the Tennessee Valley to the Carolinas as storms repeat along a stalled front. Monsoonal storms may trigger flooding in the Southwest. Dangerous heat expands across the Desert Southwest, Plains, mid-Mississippi Valley and Southern Tier. Critical fire weather for interior Pacific Northwest. Cooler, drier air brings brief relief to the Great Lakes and Northeast. Read More >

Hazardous Weather Conditions

Current conditions at

Ottumwa Regional Airport (KOTM)

Lat: 41.1°NLon: 92.44°WElev: 830ft.

Fog/Mist

68°F

20°C

Humidity 96%
Wind Speed S 6 mph
Barometer 29.95 in (1013.8 mb)
Dewpoint 67°F (19°C)
Visibility 6.00 mi
Last update 25 Jul 5:53 am CDT
Extended Forecast for

3 Miles S Gibson IA

Extreme Heat Watch July 26, 09:00pm until July 27, 10:00pm
Extreme Heat Warning July 26, 11:00am until July 26, 09:00pm
Click here for hazard details and duration
Extreme Heat Watch
Extreme Heat Warning

  • Today

    Today: Mostly cloudy through mid morning, then gradual clearing, with a high near 90. Heat index values as high as 101. Southwest wind around 5 mph.

    High: 90 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 71. Southwest wind around 5 mph becoming calm.

    Low: 71 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 96. Heat index values as high as 109. Southwest wind 5 to 10 mph.

    High: 96 °F

    Hot

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 75. Southwest wind around 10 mph.

    Low: 75 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: Sunny and hot, with a high near 96.

    High: 96 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy through mid morning, then gradual clearing, with a high near 90. Heat index values as high as 101. Southwest wind around 5 mph.
Tonight
Partly cloudy, with a low around 71. Southwest wind around 5 mph becoming calm.
Sunday
Mostly sunny and hot, with a high near 96. Heat index values as high as 109. Southwest wind 5 to 10 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 75. Southwest wind around 10 mph.
Monday
Sunny and hot, with a high near 96.
Monday Night
Mostly clear, with a low around 71.
Tuesday
Mostly sunny, with a high near 91.
Tuesday Night
Mostly clear, with a low around 67.
Wednesday
Sunny, with a high near 92.
Wednesday Night
Partly cloudy, with a low around 69.
Thursday
Mostly sunny, with a high near 91.
Thursday Night
Partly cloudy, with a low around 68.
Friday
Sunny, with a high near 90.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Gibson IA
 41.44°N 92.41°W (Elev. 869 ft)
Last Update:
2:52 am CDT Jul 25, 2026
Forecast Valid:
6am CDT Jul 25, 2026-6pm CDT Jul 31, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation