On July 7, 2015, NWS implemented changes to the icons depicted on all of its point-forecast pages. Changes include new icon images with increased clarity, 6-hour increments for rapidly changing weather and new color blocks to highlight forecast hazards.

A page depicting all of the new icon images can be accessed here: www.weather.gov/forecast-icons

Changes to the icons were based on analysis of 6,700 public comments collected in 2014. Also, many of these changes are based on the results of a research project led by the National Center for Atmospheric Research.

Users are encouraged to continue to provide comments regarding these changes via email at icons@noaa.gov. NWS will continue to analyze incoming feedback and refine the icons as necessary. Any substantial change to the icons will be facilitated through the NWS public comment/review process.

A Slight Risk of Severe Thunderstorms is Forecast

Scattered thunderstorms, a few of which could produce hail, locally damaging wind, and a couple tornadoes, will occur from southern South Dakota southward across the eastern half of Nebraska into northern Kansas. Fire danger remains high across the Pacific Northwest, with areas of poor air quality.
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Current conditions at

Iowa City, Iowa City Municipal Airport (KIOW)

Lat: 41.63°NLon: 91.54°WElev: 666ft.

Fair

19°C

66°F

Humidity 78%
Wind Speed SE 11 km/h
Barometer 30.08 in (1018.5 mb)
Dewpoint 15°C (59°F)
Visibility 16 km
Last update 27 Aug 8:52 pm CDT
Extended Forecast for

West Branch IA

  • Tonight

    Tonight: Mostly cloudy, with a low around 16. Southeast wind 5 to 10 km/h.

    Mostly Cloudy

    Low: 16 °C

  • Friday

    Friday: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8am.  Mostly cloudy, with a high near 24. South wind 10 to 15 km/h increasing to 20 to 25 km/h in the afternoon. Winds could gust as high as 35 km/h.  Chance of precipitation is 70%. New rainfall amounts between 1 and 2 cm possible.

    Showers
    Likely

    High: 24 °C

  • Friday
    Night

    Friday Night: Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms after 2am.  Cloudy, with a low around 18. Southeast wind 15 to 20 km/h decreasing to 10 to 15 km/h after midnight.  Chance of precipitation is 70%. New rainfall amounts between 1 and 2 cm possible.

    Showers
    Likely

    Low: 18 °C

  • Saturday

    Saturday: A chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 2pm.  Cloudy, then gradually becoming mostly sunny, with a high near 25. Southwest wind 5 to 10 km/h becoming northwest in the afternoon.  Chance of precipitation is 30%.

    Chance
    Showers

    High: 25 °C

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 16.

    Partly Cloudy

    Low: 16 °C

  • Sunday

    Sunday: Mostly sunny, with a high near 28.

    Mostly Sunny

    High: 28 °C

  • Sunday
    Night

    Sunday Night: Mostly clear, with a low around 17.

    Mostly Clear

    Low: 17 °C

  • Monday

    Monday: Sunny, with a high near 30.

    Sunny

    High: 30 °C

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 18.

    Mostly Clear

    Low: 18 °C

Detailed Forecast

Tonight
Mostly cloudy, with a low around 16. Southeast wind 5 to 10 km/h.
Friday
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8am. Mostly cloudy, with a high near 24. South wind 10 to 15 km/h increasing to 20 to 25 km/h in the afternoon. Winds could gust as high as 35 km/h. Chance of precipitation is 70%. New rainfall amounts between 1 and 2 cm possible.
Friday Night
Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms after 2am. Cloudy, with a low around 18. Southeast wind 15 to 20 km/h decreasing to 10 to 15 km/h after midnight. Chance of precipitation is 70%. New rainfall amounts between 1 and 2 cm possible.
Saturday
A chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 25. Southwest wind 5 to 10 km/h becoming northwest in the afternoon. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 16.
Sunday
Mostly sunny, with a high near 28.
Sunday Night
Mostly clear, with a low around 17.
Monday
Sunny, with a high near 30.
Monday Night
Mostly clear, with a low around 18.
Tuesday
Mostly sunny, with a high near 31.
Tuesday Night
Mostly clear, with a low around 18.
Wednesday
Sunny, with a high near 32.
Wednesday Night
Mostly clear, with a low around 19.
Thursday
Sunny, with a high near 31.
  Click Map For Forecast
Point Forecast:
West Branch IA
 41.66°N 91.35°W (Elev. 243 m)
7:59 pm CDT Aug 27, 2015
9pm CDT Aug 27, 2015-6pm CDT Sep 3, 2015
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Graph

National Digital Forecast Database