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Hazardous Weather Conditions

Current conditions at

Iowa City Municipal Airport (KIOW)

Lat: 41.64°NLon: 91.54°WElev: 650ft.

Fair

84°F

29°C

Humidity 77%
Wind Speed SW 3 mph
Barometer 29.91 in (1012.0 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 4 Sep 9:52 pm CDT
Extended Forecast for

West Branch IA

Extreme Heat Warning September 4, 10:01pm until September 5, 07:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning September 4, 10:01pm until September 5, 07:00pm

    NOW until 7:00pm Sat

    Extreme Heat Warning

  • Tonight

    Low: 72 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 92. Heat index values as high as 101. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 92 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 68. East wind around 5 mph.

    Low: 68 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers after 1pm. Partly sunny, with a high near 86. East wind around 5 mph.

    High: 86 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy

  • Labor Day

    Labor Day: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 72. South wind around 5 mph becoming calm.
Saturday
Sunny, with a high near 92. Heat index values as high as 101. Calm wind becoming northeast around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 68. East wind around 5 mph.
Sunday
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 86. East wind around 5 mph.
Sunday Night
Partly cloudy, with a low around 65.
Labor Day
Mostly sunny, with a high near 85.
Monday Night
Partly cloudy, with a low around 67.
Tuesday
Mostly sunny, with a high near 93.
Tuesday Night
A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73.
Wednesday
Mostly sunny, with a high near 90.
Wednesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 66.
Thursday
Mostly sunny, with a high near 83.
Thursday Night
Partly cloudy, with a low around 63.
Friday
Mostly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
West Branch IA
 41.66°N 91.35°W (Elev. 797 ft)
Last Update:
9:46 pm CDT Sep 4, 2026
Forecast Valid:
10pm CDT Sep 4, 2026-6pm CDT Sep 11, 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