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

Heavy Rainfall in the Southern Plains and Mississippi Valley; Thunderstorms in Eastern Colorado on Thursday

A multiple day heavy rainfall event will begin to set up from the Southern Plains into the Mississippi Valley Thursday, peaking in intensity over the holiday weekend. Widely scattered thunderstorms are expected to develop across eastern Colorado Thursday afternoon and evening. Large hail will be the primary hazard. Read More >

Current conditions at

Iowa City Municipal Airport (KIOW)

Lat: 41.64°NLon: 91.54°WElev: 650ft.

Partly Cloudy

56°F

13°C

Humidity 65%
Wind Speed E 10 G 18 mph
Barometer 30.26 in (1024.6 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 21 May 12:52 am CDT
Extended Forecast for

4 Miles N West Branch IA

  • Overnight

    Overnight: Partly cloudy, with a low around 44. East wind around 10 mph.

    Low: 44 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 65. East wind around 10 mph, with gusts as high as 20 mph.

    High: 65 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A 10 percent chance of showers after midnight. Mostly cloudy, with a low around 48. East wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 48 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 68. East wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 68 °F

    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 77.

    High: 77 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 44. East wind around 10 mph.
Thursday
Mostly cloudy, with a high near 65. East wind around 10 mph, with gusts as high as 20 mph.
Thursday Night
A 10 percent chance of showers after midnight. Mostly cloudy, with a low around 48. East wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
A 30 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 68. East wind 10 to 15 mph, with gusts as high as 20 mph.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 52.
Saturday
Partly sunny, with a high near 77.
Saturday Night
Partly cloudy, with a low around 54.
Sunday
Mostly sunny, with a high near 80.
Sunday Night
Mostly clear, with a low around 55.
Memorial Day
Sunny, with a high near 85.
Monday Night
Partly cloudy, with a low around 59.
Tuesday
Mostly sunny, with a high near 85.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 62.
Wednesday
Mostly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N West Branch IA
 41.73°N 91.34°W (Elev. 751 ft)
Last Update:
1:26 am CDT May 21, 2026
Forecast Valid:
1am CDT May 21, 2026-6pm CDT May 27, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation