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

47°F

8°C

Humidity 59%
Wind Speed S 8 mph
Barometer 29.99 in (1015.8 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 2 May 11:53 pm CDT
Extended Forecast for

4 Miles S Blakesburg IA

  • Overnight

    Overnight: A 10 percent chance of showers after 5am. Partly cloudy, with a low around 43. South southwest wind 7 to 11 mph, with gusts as high as 22 mph.

    Low: 43 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: A 10 percent chance of showers before 7am. Partly sunny, with a high near 72. Breezy, with a south southwest wind 11 to 17 mph becoming west northwest in the afternoon. Winds could gust as high as 28 mph.

    High: 72 °F

    Slight Chance
    Showers and
    Breezy then
    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming clear, with a low around 47. West northwest wind around 6 mph becoming calm in the evening.

    Low: 47 °F

    Decreasing
    Clouds

  • Monday

    Monday: A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Sunny, with a high near 80. South southwest wind 6 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    High: 80 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 47. Southwest wind 8 to 10 mph becoming north after midnight. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 47 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A 50 percent chance of showers. Mostly cloudy, with a high near 56. New precipitation amounts of less than a tenth of an inch possible.

    High: 56 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 56.

    High: 56 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 10 percent chance of showers after 5am. Partly cloudy, with a low around 43. South southwest wind 7 to 11 mph, with gusts as high as 22 mph.
Sunday
A 10 percent chance of showers before 7am. Partly sunny, with a high near 72. Breezy, with a south southwest wind 11 to 17 mph becoming west northwest in the afternoon. Winds could gust as high as 28 mph.
Sunday Night
Mostly cloudy, then gradually becoming clear, with a low around 47. West northwest wind around 6 mph becoming calm in the evening.
Monday
A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Sunny, with a high near 80. South southwest wind 6 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Monday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 47. Southwest wind 8 to 10 mph becoming north after midnight. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
A 50 percent chance of showers. Mostly cloudy, with a high near 56. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 40.
Wednesday
A 30 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 56.
Wednesday Night
Mostly cloudy, with a low around 39.
Thursday
Mostly sunny, with a high near 64.
Thursday Night
Partly cloudy, with a low around 45.
Friday
Mostly sunny, with a high near 71.
Friday Night
Partly cloudy, with a low around 48.
Saturday
Mostly sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Blakesburg IA
 40.9°N 92.65°W
Last Update:
9:57 pm CDT May 2, 2026
Forecast Valid:
12am CDT May 3, 2026-6pm CDT May 9, 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