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

Ottumwa Regional Airport (KOTM)

Lat: 41.1°NLon: 92.44°WElev: 830ft.

Fair

18°F

-8°C

Humidity 92%
Wind Speed NE 12 mph
Barometer 30.36 in (1029.1 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill5°F (-15°C)
Last update 1 Mar 3:53 am CST
Extended Forecast for

Rathbun IA

  • Today

    Today: A 30 percent chance of snow after 5pm. Increasing clouds, with a high near 39. East wind 7 to 11 mph, with gusts as high as 20 mph. Little or no snow accumulation expected.

    High: 39 °F

    Partly Sunny
    then Chance
    Snow

  • Tonight

    Tonight: A chance of snow before 4am, then a slight chance of snow and freezing rain between 4am and 5am, then a slight chance of freezing rain after 5am. Mostly cloudy, with a low around 28. East southeast wind 8 to 10 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Chance Snow
    then Chance
    Wintry Mix

  • Monday

    Monday: A slight chance of drizzle or freezing rain before 9am, then a slight chance of drizzle between 9am and 10am. Cloudy, with a high near 44. East southeast wind 8 to 10 mph. Chance of precipitation is 20%.

    High: 44 °F

    Slight Chance
    Drizzle/Freezing
    Rain then
    Cloudy

  • Monday Night

    Monday Night: Rain, mainly after midnight. Low around 37. East southeast wind around 7 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 37 °F

    Chance Rain
    then Rain

  • Tuesday

    Tuesday: Rain before noon, then showers likely after noon. High near 49. East northeast wind 6 to 9 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 49 °F

    Rain

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 41. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 41 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Cloudy, with a high near 57. Chance of precipitation is 70%.

    High: 57 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Chance Rain

  • Thursday

    Thursday: A 30 percent chance of rain before noon. Partly sunny, with a high near 63.

    High: 63 °F

    Chance Rain
    then Partly
    Sunny

Detailed Forecast

Today
A 30 percent chance of snow after 5pm. Increasing clouds, with a high near 39. East wind 7 to 11 mph, with gusts as high as 20 mph. Little or no snow accumulation expected.
Tonight
A chance of snow before 4am, then a slight chance of snow and freezing rain between 4am and 5am, then a slight chance of freezing rain after 5am. Mostly cloudy, with a low around 28. East southeast wind 8 to 10 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Monday
A slight chance of drizzle or freezing rain before 9am, then a slight chance of drizzle between 9am and 10am. Cloudy, with a high near 44. East southeast wind 8 to 10 mph. Chance of precipitation is 20%.
Monday Night
Rain, mainly after midnight. Low around 37. East southeast wind around 7 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
Rain before noon, then showers likely after noon. High near 49. East northeast wind 6 to 9 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 41. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Cloudy, with a high near 57. Chance of precipitation is 70%.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 40.
Thursday
A 30 percent chance of rain before noon. Partly sunny, with a high near 63.
Thursday Night
A 40 percent chance of rain and thunderstorms after midnight. Mostly cloudy, with a low around 48.
Friday
Rain likely. Mostly cloudy, with a high near 65. Chance of precipitation is 70%.
Friday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 40.
Saturday
A 30 percent chance of rain. Mostly cloudy, with a high near 57.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Rathbun IA
 40.81°N 92.88°W
Last Update:
2:37 am CST Mar 1, 2026
Forecast Valid:
4am CST Mar 1, 2026-6pm CST Mar 7, 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