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Severe Thunderstorms With Heavy Rain Possible In The Upper Midwest; Excessive Heat For Central U.S.

Several rounds of strong to severe thunderstorms will be possible from the northern Plains and upper Midwest to the Great Lakes through Friday. Damaging winds, large hail, and flooding will be the primary threats with these storms. Excessive heat will grip the central Plains with heat indices approaching 105 to 110 degrees. Very hot and humid conditions are likely to expand into the Mid Atlantic. Read More >

Current conditions at

Iowa City Municipal Airport (KIOW)

Lat: 41.64°NLon: 91.54°WElev: 650ft.

Fair

29°C

84°F

Humidity 74%
Wind Speed SE 17 km/h
Barometer 1013.7 mb (29.95 in)
Dewpoint 24°C (75°F)
Visibility 16 km
Heat Index33°C (92°F)
Last update 21 Jul 10:52 am CDT
Extended Forecast for

West Branch IA

Excessive Heat Warning until July 22, 08:00pm
Click here for hazard details and duration
Excessive Heat Warning
  •  
    Excessive Heat Warning until July 22, 08:00pm

    NOW until
    8:00pm Sat

    Excessive Heat Warning

  • Today

    Today: Isolated showers and thunderstorms before 1pm.  Partly sunny, with a high near 33. Heat index values as high as 41. South wind 15 to 20 km/h.  Chance of precipitation is 20%.

    Isolated
    T-storms

    High: 33 °C

  • Tonight

    Tonight: Isolated showers and thunderstorms before 9pm, then scattered showers and thunderstorms after 1am.  Mostly cloudy, with a low around 24. South wind around 15 km/h.  Chance of precipitation is 40%.

    Scattered
    T-storms

    Low: 24 °C

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms.  Partly sunny, with a high near 33. Heat index values as high as 39. Southwest wind 10 to 15 km/h becoming northwest in the afternoon.

    Slight Chance
    T-storms

    High: 33 °C

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 21. Northwest wind 5 to 15 km/h.

    Partly Cloudy

    Low: 21 °C

  • Sunday

    Sunday: Mostly sunny, with a high near 30.

    Mostly Sunny

    High: 30 °C

  • Sunday
    Night

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

    Mostly Clear

    Low: 17 °C

  • Monday

    Monday: Sunny, with a high near 27.

    Sunny

    High: 27 °C

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 16.

    Mostly Clear

    Low: 16 °C

Detailed Forecast

Today
Isolated showers and thunderstorms before 1pm. Partly sunny, with a high near 33. Heat index values as high as 41. South wind 15 to 20 km/h. Chance of precipitation is 20%.
Tonight
Isolated showers and thunderstorms before 9pm, then scattered showers and thunderstorms after 1am. Mostly cloudy, with a low around 24. South wind around 15 km/h. Chance of precipitation is 40%.
Saturday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 33. Heat index values as high as 39. Southwest wind 10 to 15 km/h becoming northwest in the afternoon.
Saturday Night
Partly cloudy, with a low around 21. Northwest wind 5 to 15 km/h.
Sunday
Mostly sunny, with a high near 30.
Sunday Night
Mostly clear, with a low around 17.
Monday
Sunny, with a high near 27.
Monday Night
Mostly clear, with a low around 16.
Tuesday
Sunny, with a high near 28.
Tuesday Night
Mostly clear, with a low around 17.
Wednesday
Mostly sunny, with a high near 29.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 20.
Thursday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 29.
Click Map For Forecast
Point Forecast:
West Branch IA
 41.66°N 91.35°W (Elev. 243 m)
7:29 am CDT Jul 21, 2017
11am CDT Jul 21, 2017-6pm CDT Jul 27, 2017
 
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