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.

A Few Clouds

90°F

32°C

Humidity 73%
Wind Speed W 10 mph
Barometer 29.75 in (1006.3 mb)
Dewpoint 80°F (27°C)
Visibility 10.00 mi
Heat Index108°F (42°C)
Last update 27 Jul 1:53 pm CDT
Extended Forecast for

3 Miles ENE Blakesburg IA

Extreme Heat Warning July 27, 02:31pm until July 27, 10:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning July 27, 02:31pm until July 27, 10:00pm

    NOW until 10:00pm Mon

    Extreme Heat Warning

  • This Afternoon

    High: 98 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Patchy smoke after 3am. Partly cloudy, with a low around 73. West wind around 6 mph becoming north northwest after midnight.

    Low: 73 °F

    Partly Cloudy
    then Patchy
    Smoke

  • Tuesday

    Tuesday: Patchy smoke before 7am, then patchy smoke after 4pm. Mostly sunny, with a high near 87. Northeast wind around 6 mph.

    High: 87 °F

    Patchy Smoke

  • Tuesday Night

    Tuesday Night: Patchy smoke before 1am. Partly cloudy, with a low around 67. East northeast wind around 5 mph becoming calm in the evening.

    Low: 67 °F

    Patchy Smoke

  • Wednesday

    Wednesday: Sunny, with a high near 90. Light southeast wind.

    High: 90 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 70.

    Low: 70 °F

    Mostly Cloudy
    then Chance
    T-storms

Detailed Forecast

This Afternoon
A slight chance of showers and thunderstorms. Mostly sunny and hot, with a high near 98. Heat index values as high as 110. West wind around 10 mph. Chance of precipitation is 20%.
Tonight
Patchy smoke after 3am. Partly cloudy, with a low around 73. West wind around 6 mph becoming north northwest after midnight.
Tuesday
Patchy smoke before 7am, then patchy smoke after 4pm. Mostly sunny, with a high near 87. Northeast wind around 6 mph.
Tuesday Night
Patchy smoke before 1am. Partly cloudy, with a low around 67. East northeast wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 90. Light southeast wind.
Wednesday Night
Mostly clear, with a low around 68.
Thursday
Mostly sunny, with a high near 90.
Thursday Night
A 50 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 70.
Friday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 79. Chance of precipitation is 70%.
Friday Night
A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 66. Chance of precipitation is 50%.
Saturday
A 30 percent chance of showers. Mostly sunny, with a high near 80.
Saturday Night
Partly cloudy, with a low around 66.
Sunday
Sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Blakesburg IA
 40.98°N 92.59°W
Last Update:
2:26 pm CDT Jul 27, 2026
Forecast Valid:
2pm CDT Jul 27, 2026-6pm CDT Aug 2, 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