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

Heavy Rainfall Threat Continues in the Southwest on Monday; Record Warmth in the Plains and Midwest

Remnant moisture from Tropical Storm Rachel will persist over portions of the Great Basin and Southwest on Monday, bringing a potential heavy to excessive rainfall risk. Well above average and potentially record breaking temperatures will develop across the Plains and Midwest early this week, spreading into the Lower Mississippi Valley and Southeast midweek. Read More >

Current conditions at

Oskaloosa, Oskaloosa Municipal Airport (KOOA)

Lat: 41.23°NLon: 92.49°WElev: 840ft.

Fair

71°F

22°C

Humidity 67%
Wind Speed S 6 mph
Barometer 29.86 in
Dewpoint 60°F (16°C)
Visibility 7.00 mi
Last update 11 Oct 8:55 pm CDT
Extended Forecast for

Ottumwa IA

  • Tonight

    Tonight: Partly cloudy, with a low around 69. South wind 7 to 9 mph, with gusts as high as 20 mph.

    Low: 69 °F

    Partly Cloudy

  • Columbus Day

    Columbus Day: Sunny, with a high near 88. South southwest wind 9 to 14 mph, with gusts as high as 25 mph.

    High: 88 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 67. South southwest wind 6 to 10 mph, with gusts as high as 23 mph.

    Low: 67 °F

    Clear

  • Tuesday

    Tuesday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Sunny, with a high near 84. Light west northwest wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Mostly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 62. Light north wind. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

    Low: 62 °F

    Showers

  • Wednesday

    Wednesday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 72. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 72 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 57.

    Low: 57 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: Showers and possibly a thunderstorm. High near 69. Chance of precipitation is 80%.

    High: 69 °F

    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 69. South wind 7 to 9 mph, with gusts as high as 20 mph.
Columbus Day
Sunny, with a high near 88. South southwest wind 9 to 14 mph, with gusts as high as 25 mph.
Monday Night
Clear, with a low around 67. South southwest wind 6 to 10 mph, with gusts as high as 23 mph.
Tuesday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Sunny, with a high near 84. Light west northwest wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and possibly a thunderstorm. Low around 62. Light north wind. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Wednesday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 72. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 57.
Thursday
Showers and possibly a thunderstorm. High near 69. Chance of precipitation is 80%.
Thursday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 50.
Friday
Mostly sunny, with a high near 60. Breezy.
Friday Night
Mostly clear, with a low around 37.
Saturday
Sunny, with a high near 58.
Saturday Night
Clear, with a low around 39.
Sunday
Sunny, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ottumwa IA
 41.02°N 92.42°W
Last Update:
5:21 pm CDT Oct 11, 2026
Forecast Valid:
9pm CDT Oct 11, 2026-6pm CDT Oct 18, 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