National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Areas of Excessive Rainfall, Severe Thunderstorms, and Extreme Heat

Heavy to excessive rainfall is expected through tonight across portions of the central Plains. Areas of intense rainfall amounts could support increasing flooding concerns. Scattered severe thunderstorms are possible across parts of the central/southern Plains today and tonight, with large hail and damaging winds the main threats. Areas of extreme heat will impact parts of the West this week. Read More >

Hazardous Weather Conditions

Current conditions at

Iowa City Municipal Airport (KIOW)

Lat: 41.64°NLon: 91.54°WElev: 650ft.

Fair

68°F

20°C

Humidity 100%
Wind Speed S 8 mph
Barometer 30.01 in (1015.8 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 11 Aug 3:52 am CDT
Extended Forecast for

West Branch IA

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms. Patchy fog. Otherwise, mostly cloudy, with a low around 68. Calm wind.

    Low: 68 °F

    Slight Chance
    T-storms and
    Patchy Fog

  • Monday

    Monday: A slight chance of showers and thunderstorms before noon, then a slight chance of showers and thunderstorms after 4pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 83. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 83 °F

    Slight Chance
    T-storms and
    Patchy Fog

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. South wind around 5 mph becoming calm.

    Low: 69 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 83. Southwest wind around 5 mph.

    High: 83 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms. Patchy fog. Otherwise, mostly cloudy, with a low around 68. Calm wind.
Monday
A slight chance of showers and thunderstorms before noon, then a slight chance of showers and thunderstorms after 4pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 83. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 20%.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. South wind around 5 mph becoming calm.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 83. Southwest wind around 5 mph.
Tuesday Night
Partly cloudy, with a low around 62.
Wednesday
Sunny, with a high near 81.
Wednesday Night
Mostly clear, with a low around 61.
Thursday
Sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 67.
Friday
Mostly sunny, with a high near 88.
Friday Night
Mostly clear, with a low around 71.
Saturday
Mostly sunny, with a high near 89.
Saturday Night
Partly cloudy, with a low around 70.
Sunday
A 30 percent chance of showers. Mostly sunny, with a high near 87.
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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:
3:17 am CDT Aug 11, 2025
Forecast Valid:
4am CDT Aug 11, 2025-6pm CDT Aug 17, 2025
 
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