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

Flooding Possible in the Southwest U.S.; Coastal Storm to Impact the East

Heavy to excessive rainfall is expected today into Wednesday over New Mexico into far west Texas. Flash flooding and debris flows in wildfire burn areas will be possible. A strong coastal storm will develop off the Mid-Atlantic coast Wednesday, intensifying toward southern New England this weekend. Significant coastal flooding, strong rip currents, and beach erosion from high surf expected. Read More >

Current conditions at

Oskaloosa, Oskaloosa Municipal Airport (KOOA)

Lat: 41.23°NLon: 92.49°WElev: 840ft.

58°F

14°C

Humidity 98%
Wind Speed E 9 mph
Barometer 30.26 in
Dewpoint 58°F (14°C)
Visibility 2.00 mi
Last update 22 Sep 9:55 am CDT
Extended Forecast for

Ottumwa IA

  • Today

    Today: Areas of drizzle. Patchy fog before 3pm. Otherwise, cloudy, with a high near 62. East northeast wind around 8 mph.

    High: 62 °F

    Areas Drizzle
    and Patchy
    Fog

  • Tonight

    Tonight: Mostly cloudy, with a low around 50. East northeast wind around 6 mph becoming calm after midnight.

    Low: 50 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 68. East northeast wind 3 to 5 mph.

    High: 68 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 54. Light east wind.

    Low: 54 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 66. Calm wind.

    High: 66 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 70.

    High: 70 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 67. Chance of precipitation is 60%.

    High: 67 °F

    Showers
    Likely

Detailed Forecast

Today
Areas of drizzle. Patchy fog before 3pm. Otherwise, cloudy, with a high near 62. East northeast wind around 8 mph.
Tonight
Mostly cloudy, with a low around 50. East northeast wind around 6 mph becoming calm after midnight.
Wednesday
Mostly sunny, with a high near 68. East northeast wind 3 to 5 mph.
Wednesday Night
Partly cloudy, with a low around 54. Light east wind.
Thursday
Mostly cloudy, with a high near 66. Calm wind.
Thursday Night
Mostly cloudy, with a low around 56.
Friday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 70.
Friday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 56.
Saturday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 67. Chance of precipitation is 60%.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 58.
Sunday
Partly sunny, with a high near 76.
Sunday Night
Partly cloudy, with a low around 61.
Monday
Partly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Ottumwa IA
 41.02°N 92.42°W
Last Update:
9:13 am CDT Sep 22, 2026
Forecast Valid:
10am CDT Sep 22, 2026-6pm CDT Sep 28, 2026
 
Forecast Discussion
 
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Additional Resources

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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