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.

Light Rain

48°F

9°C

Humidity 68%
Wind Speed E 6 mph
Barometer 30.04 in (1017.0 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 1 Apr 3:53 am CDT
Extended Forecast for

Thornburg IA

  • Overnight

    Overnight: A 20 percent chance of showers. Cloudy, with a steady temperature around 47. Northeast wind around 15 mph, with gusts as high as 20 mph.

    Low: 47 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers before 7am, then a chance of showers after 3pm. Cloudy, with a high near 48. Breezy, with an east wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.

    High: 48 °F

    Breezy.
    Slight Chance
    Showers then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 9pm, then showers and possibly a thunderstorm between 9pm and 4am, then showers after 4am. Some of the storms could produce heavy rainfall. Temperature falling to near 42 by 8pm, then rising to around 48 during the remainder of the night. Breezy, with an east wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    Low: 42 °F⇑

    Heavy Rain
    and Breezy

  • Thursday

    Thursday: Showers likely, then showers and possibly a thunderstorm after 7am. Some of the storms could produce heavy rainfall. High near 70. Breezy, with a southeast wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 70 °F

    Heavy Rain
    and Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 39. Breezy.

    Low: 39 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Friday

    Friday: Showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 71. Chance of precipitation is 70%.

    High: 71 °F

    Mostly Sunny
    then Showers
    Likely

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 38. Chance of precipitation is 80%.

    Low: 38 °F

    T-storms then
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 48. Breezy.

    High: 48 °F

    Chance
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 30. Breezy.

    Low: 30 °F

    Mostly Cloudy
    and Breezy
    then Partly
    Cloudy

Detailed Forecast

Overnight
A 20 percent chance of showers. Cloudy, with a steady temperature around 47. Northeast wind around 15 mph, with gusts as high as 20 mph.
Wednesday
A slight chance of showers before 7am, then a chance of showers after 3pm. Cloudy, with a high near 48. Breezy, with an east wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.
Wednesday Night
Showers and thunderstorms likely before 9pm, then showers and possibly a thunderstorm between 9pm and 4am, then showers after 4am. Some of the storms could produce heavy rainfall. Temperature falling to near 42 by 8pm, then rising to around 48 during the remainder of the night. Breezy, with an east wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Thursday
Showers likely, then showers and possibly a thunderstorm after 7am. Some of the storms could produce heavy rainfall. High near 70. Breezy, with a southeast wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday Night
Partly cloudy, with a low around 39. Breezy.
Friday
Showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 71. Chance of precipitation is 70%.
Friday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 38. Chance of precipitation is 80%.
Saturday
A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 48. Breezy.
Saturday Night
Mostly cloudy, with a low around 30. Breezy.
Sunday
Sunny, with a high near 52.
Sunday Night
Mostly clear, with a low around 31.
Monday
Mostly sunny, with a high near 60.
Monday Night
Partly cloudy, with a low around 32.
Tuesday
Mostly sunny, with a high near 53.
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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:
1:37 am CDT Apr 1, 2026
Forecast Valid:
4am CDT Apr 1, 2026-6pm CDT Apr 7, 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