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 Freezing Rain

31°F

-1°C

Humidity 96%
Wind Speed NE 13 mph
Barometer 30.07 in (1018.8 mb)
Dewpoint 30°F (-1°C)
Visibility 8.00 mi
Wind Chill21°F (-6°C)
Last update 14 Mar 4:53 am CDT
Extended Forecast for

Thornburg IA

Winter Storm Watch March 15, 07:00pm until March 16, 07:00pm
High Wind Watch March 15, 04:00pm until March 16, 01:00pm
Click here for hazard details and duration
Winter Storm Watch
High Wind Watch

  • Today

    Today: Partly sunny, with a high near 51. Breezy, with a southeast wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 51 °F

    Partly Sunny
    then Mostly
    Sunny and
    Breezy

  • Tonight

    Tonight: A 30 percent chance of rain and thunderstorms after 4am. Increasing clouds, with a low around 43. Southeast wind around 15 mph, with gusts as high as 30 mph.

    Low: 43 °F

    Mostly Cloudy
    then Chance
    Rain

  • Sunday

    Sunday: Rain before 4pm, then snow, possibly mixed with rain. Some thunder is also possible. Temperature rising to near 55 by 10am, then falling to around 36 during the remainder of the day. Windy, with a south wind 15 to 20 mph becoming north 25 to 30 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 55 °F⇓

    Rain and
    Breezy then
    Rain/Snow and
    Windy

  • Sunday Night

    Sunday Night: Snow, possibly mixed with rain, becoming all snow after 7pm. The snow could be heavy at times. Widespread blowing snow, mainly after 7pm. Low around 9. Wind chill values as low as -10. Windy, with a north wind around 30 mph, with gusts as high as 50 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 7 inches possible.

    Low: 9 °F

    Rain/Snow and
    Blowing Snow
    then Heavy
    Snow and
    Blowing Snow

  • Monday

    Monday: Areas of blowing snow. Mostly cloudy, with a high near 18. Blustery.

    High: 18 °F

    Areas Blowing
    Snow and
    Blustery

  • Monday Night

    Monday Night: Mostly clear, with a low around 1. Blustery.

    Low: 1 °F

    Mostly Clear
    and Blustery
    then Mostly
    Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 29.

    High: 29 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Snow likely before 1am. Mostly cloudy, with a low around 22. Chance of precipitation is 60%.

    Low: 22 °F

    Snow Likely

  • Wednesday

    Wednesday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 51. Breezy, with a southeast wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 25 mph.
Tonight
A 30 percent chance of rain and thunderstorms after 4am. Increasing clouds, with a low around 43. Southeast wind around 15 mph, with gusts as high as 30 mph.
Sunday
Rain before 4pm, then snow, possibly mixed with rain. Some thunder is also possible. Temperature rising to near 55 by 10am, then falling to around 36 during the remainder of the day. Windy, with a south wind 15 to 20 mph becoming north 25 to 30 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Sunday Night
Snow, possibly mixed with rain, becoming all snow after 7pm. The snow could be heavy at times. Widespread blowing snow, mainly after 7pm. Low around 9. Wind chill values as low as -10. Windy, with a north wind around 30 mph, with gusts as high as 50 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 7 inches possible.
Monday
Areas of blowing snow. Mostly cloudy, with a high near 18. Blustery.
Monday Night
Mostly clear, with a low around 1. Blustery.
Tuesday
Partly sunny, with a high near 29.
Tuesday Night
Snow likely before 1am. Mostly cloudy, with a low around 22. Chance of precipitation is 60%.
Wednesday
Mostly sunny, with a high near 50.
Wednesday Night
Mostly clear, with a low around 31.
Thursday
Sunny, with a high near 64.
Thursday Night
Partly cloudy, with a low around 37.
Friday
Partly 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:
4:36 am CDT Mar 14, 2026
Forecast Valid:
5am CDT Mar 14, 2026-6pm CDT Mar 20, 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