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

Hazardous Weather Conditions

Current conditions at

Ottumwa Regional Airport (KOTM)

Lat: 41.1°NLon: 92.44°WElev: 830ft.

Fair

33°F

1°C

Humidity 78%
Wind Speed E 3 mph
Barometer 30.29 in (1026.2 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 20 Apr 5:53 am CDT
Extended Forecast for

Thornburg IA

Freeze Warning April 20, 06:02am until April 20, 09:00am
Click here for hazard details and duration
...
  •  
    Freeze Warning April 20, 06:02am until April 20, 09:00am

    NOW until 9:00am Mon

    Freeze Warning

  • Today

    High: 64 °F

    Frost then
    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 51. South wind around 15 mph, with gusts as high as 25 mph.

    Low: 51 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Sunny, with a high near 79. Southwest wind around 15 mph, with gusts as high as 25 mph.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 54. Southwest wind around 5 mph.

    Low: 54 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 76. Breezy.

    High: 76 °F

    Breezy.
    Partly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 50. Breezy. Chance of precipitation is 80%.

    Low: 50 °F

    Showers and
    Breezy

Detailed Forecast

Today
Widespread frost before 7am. Otherwise, sunny, with a high near 64. Southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Tonight
Increasing clouds, with a low around 51. South wind around 15 mph, with gusts as high as 25 mph.
Tuesday
Sunny, with a high near 79. Southwest wind around 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 54. Southwest wind around 5 mph.
Wednesday
Sunny, with a high near 80.
Wednesday Night
Partly cloudy, with a low around 58.
Thursday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 76. Breezy.
Thursday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 50. Breezy. Chance of precipitation is 80%.
Friday
A 30 percent chance of showers before 1pm. Partly sunny, with a high near 64.
Friday Night
Partly cloudy, with a low around 42.
Saturday
Mostly sunny, with a high near 64.
Saturday Night
Mostly cloudy, with a low around 42.
Sunday
Mostly sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Thornburg IA
 41.46°N 92.35°W (Elev. 902 ft)
Last Update:
2:21 am CDT Apr 20, 2026
Forecast Valid:
6am CDT Apr 20, 2026-6pm CDT Apr 26, 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