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Hazardous Weather Conditions

Current conditions at

Ottumwa Regional Airport (KOTM)

Lat: 41.1°NLon: 92.44°WElev: 830ft.

Fair

58°F

14°C

Humidity 72%
Wind Speed SW 20 mph
Barometer 29.39 in (995.0 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 18 Feb 2:53 am CST
Extended Forecast for

Thornburg IA

Red Flag Warning February 18, 10:00am until February 18, 08:00pm
Click here for hazard details and duration
Red Flag Warning

  • Overnight

    Overnight: Mostly clear, with a steady temperature around 51. Breezy, with a southwest wind around 20 mph, with gusts as high as 35 mph.

    Low: 51 °F

    Mostly Clear
    and Breezy

  • Wednesday

    Wednesday: Sunny, with a high near 64. Windy, with a west wind 20 to 30 mph, with gusts as high as 40 mph.

    High: 64 °F

    Sunny and
    Windy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 36. Southwest wind 5 to 15 mph becoming east after midnight. Winds could gust as high as 20 mph.

    Low: 36 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 40 percent chance of rain. Partly sunny, with a high near 56. East wind 10 to 15 mph becoming north in the afternoon. Winds could gust as high as 25 mph.

    High: 56 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Rain likely before 9pm, then rain and snow likely between 9pm and midnight, then a chance of snow after midnight. Mostly cloudy, with a low around 25. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 25 °F

    Rain/Snow
    Likely then
    Chance Snow

  • Friday

    Friday: Mostly sunny, with a high near 35.

    High: 35 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 18.

    Low: 18 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny, with a high near 32.

    High: 32 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 13.

    Low: 13 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 51. Breezy, with a southwest wind around 20 mph, with gusts as high as 35 mph.
Wednesday
Sunny, with a high near 64. Windy, with a west wind 20 to 30 mph, with gusts as high as 40 mph.
Wednesday Night
Mostly cloudy, with a low around 36. Southwest wind 5 to 15 mph becoming east after midnight. Winds could gust as high as 20 mph.
Thursday
A 40 percent chance of rain. Partly sunny, with a high near 56. East wind 10 to 15 mph becoming north in the afternoon. Winds could gust as high as 25 mph.
Thursday Night
Rain likely before 9pm, then rain and snow likely between 9pm and midnight, then a chance of snow after midnight. Mostly cloudy, with a low around 25. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Friday
Mostly sunny, with a high near 35.
Friday Night
Mostly clear, with a low around 18.
Saturday
Partly sunny, with a high near 32.
Saturday Night
Partly cloudy, with a low around 13.
Sunday
Sunny, with a high near 30.
Sunday Night
Mostly clear, with a low around 11.
Monday
Sunny, with a high near 32.
Monday Night
Mostly clear, with a low around 16.
Tuesday
Mostly sunny, with a high near 46.
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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:
3:16 am CST Feb 18, 2026
Forecast Valid:
3am CST Feb 18, 2026-6pm CST Feb 24, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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