Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Hazardous Weather Conditions

Current conditions at

Iowa City Municipal Airport (KIOW)

Lat: 41.64°NLon: 91.54°WElev: 650ft.

Fair

71°F

22°C

Humidity 94%
Wind Speed Calm
Barometer 29.93 in (1013.1 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 19 Aug 2:52 am CDT
Extended Forecast for

4 Miles S West Branch IA

  • Overnight

    Overnight: Patchy fog after 4am.  Otherwise, mostly cloudy, with a low around 65. Calm wind.

    Low: 65 °F

    Patchy Fog

  • Wednesday

    Wednesday: A slight chance of showers between 2pm and 3pm.  Patchy fog before 9am.  Otherwise, mostly cloudy, with a high near 82. Calm wind becoming northeast around 5 mph in the afternoon.  Chance of precipitation is 20%.

    High: 82 °F

    Patchy Fog
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming clear, with a low around 62. North wind around 5 mph becoming calm.

    Low: 62 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 82. Calm wind becoming east around 5 mph.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of showers before 1pm.  Sunny, with a high near 83.

    High: 83 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 65. Calm wind.
Wednesday
A slight chance of showers between 2pm and 3pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 82. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 20%.
Wednesday Night
Mostly cloudy, then gradually becoming clear, with a low around 62. North wind around 5 mph becoming calm.
Thursday
Sunny, with a high near 82. Calm wind becoming east around 5 mph.
Thursday Night
Partly cloudy, with a low around 64.
Friday
A 30 percent chance of showers before 1pm. Sunny, with a high near 83.
Friday Night
Mostly clear, with a low around 65.
Saturday
Sunny, with a high near 82.
Saturday Night
Mostly clear, with a low around 62.
Sunday
Mostly sunny, with a high near 78.
Sunday Night
Partly cloudy, with a low around 61.
Monday
Mostly sunny, with a high near 80.
Monday Night
Partly cloudy, with a low around 63.
Tuesday
Mostly sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S West Branch IA
 41.62°N 91.35°W (Elev. 699 ft)
2:56 am CDT Aug 19, 2026
3am CDT Aug 19, 2026-6pm CDT Aug 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