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.

Overcast

42°F

6°C

Humidity 89%
Wind Speed W 12 mph
Barometer 29.94 in (1014.1 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 4 Apr 3:53 am CDT
Extended Forecast for

Thornburg IA

  • Today

    Today: Cloudy, with a high near 46. Breezy, with a west wind 15 to 25 mph, with gusts as high as 30 mph.

    High: 46 °F

    Cloudy and
    Breezy

  • Tonight

    Tonight: Mostly cloudy, with a low around 31. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 31 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Sunday

    Sunday: Sunny, with a high near 55. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 55 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 33. West wind around 10 mph, with gusts as high as 20 mph.

    Low: 33 °F

    Mostly Clear

  • Monday

    Monday: Partly sunny, with a high near 48.

    High: 48 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of rain and snow showers after 1pm. Partly sunny, with a high near 44. Chance of precipitation is 30%.

    High: 44 °F

    Partly Sunny
    then Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: A chance of rain and snow showers before 1am, then a chance of rain showers. Mostly cloudy, with a low around 35. Chance of precipitation is 40%.

    Low: 35 °F

    Chance
    Rain/Snow

  • Wednesday

    Wednesday: A 30 percent chance of showers. Partly sunny, with a high near 70. Breezy.

    High: 70 °F

    Chance
    Showers and
    Breezy

Detailed Forecast

Today
Cloudy, with a high near 46. Breezy, with a west wind 15 to 25 mph, with gusts as high as 30 mph.
Tonight
Mostly cloudy, with a low around 31. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday
Sunny, with a high near 55. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 33. West wind around 10 mph, with gusts as high as 20 mph.
Monday
Partly sunny, with a high near 48.
Monday Night
Mostly cloudy, with a low around 25.
Tuesday
A chance of rain and snow showers after 1pm. Partly sunny, with a high near 44. Chance of precipitation is 30%.
Tuesday Night
A chance of rain and snow showers before 1am, then a chance of rain showers. Mostly cloudy, with a low around 35. Chance of precipitation is 40%.
Wednesday
A 30 percent chance of showers. Partly sunny, with a high near 70. Breezy.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 46. Breezy.
Thursday
A 40 percent chance of showers. Partly sunny, with a high near 64.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 45.
Friday
Showers likely. Mostly cloudy, with a high near 66. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Thornburg IA
 41.46°N 92.35°W (Elev. 902 ft)
Last Update:
2:21 am CDT Apr 4, 2026
Forecast Valid:
4am CDT Apr 4, 2026-6pm CDT Apr 10, 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