Severe Thunderstorms and Flooding from the Southern Plains to the Great Lakes; Record Heat in the East

Widely scattered severe thunderstorms may produce damaging winds, hail, and flash flooding from the southern Plains into the lower Great Lakes. Elevated to locally critical fire weather conditions will persist across portions of the Southwest and Southern High Plains due to gusty winds and dry conditions. An early-season heatwave will challenge temperature records across the eastern U.S.. Read More >

Hazardous Weather Conditions

Current conditions at

Ottumwa Regional Airport (KOTM)

Lat: 41.1°NLon: 92.44°WElev: 830ft.

Overcast

55°F

13°C

Humidity 90%
Wind Speed NW 18 G 24 mph
Barometer 30.04 in (1016.9 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 19 May 10:53 am CDT
Extended Forecast for

Chillicothe IA

  • Today

    Today: Mostly cloudy, with a high near 64. Breezy, with a northwest wind around 16 mph, with gusts as high as 24 mph.

    High: 64 °F

    Mostly Cloudy
    and Breezy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 44. North northwest wind 6 to 13 mph, with gusts as high as 18 mph.

    Low: 44 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Sunny, with a high near 65. Northeast wind 7 to 9 mph.

    High: 65 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 46. Northeast wind 5 to 8 mph.

    Low: 46 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A 40 percent chance of showers after 1pm.  Mostly cloudy, with a high near 66. East wind 9 to 11 mph, with gusts as high as 20 mph.  New precipitation amounts of less than a tenth of an inch possible.

    High: 66 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am.  Cloudy, with a low around 50. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 50 °F

    Chance
    Showers then
    Showers
    Likely

  • Friday

    Friday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm.  Mostly cloudy, with a high near 65. Chance of precipitation is 60%.

    High: 65 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 75.

    High: 75 °F

    Partly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 64. Breezy, with a northwest wind around 16 mph, with gusts as high as 24 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 44. North northwest wind 6 to 13 mph, with gusts as high as 18 mph.
Wednesday
Sunny, with a high near 65. Northeast wind 7 to 9 mph.
Wednesday Night
Increasing clouds, with a low around 46. Northeast wind 5 to 8 mph.
Thursday
A 40 percent chance of showers after 1pm. Mostly cloudy, with a high near 66. East wind 9 to 11 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Cloudy, with a low around 50. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 65. Chance of precipitation is 60%.
Friday Night
Mostly cloudy, with a low around 51.
Saturday
Partly sunny, with a high near 75.
Saturday Night
Mostly cloudy, with a low around 54.
Sunday
Mostly sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 60.
Memorial Day
Partly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
Chillicothe IA
 41.09°N 92.53°W
9:47 am CDT May 19, 2026
11am CDT May 19, 2026-6pm CDT May 25, 2026
 
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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