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

Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Hazardous Weather Conditions

Current conditions at

Iowa City Municipal Airport (KIOW)

Lat: 41.64°NLon: 91.54°WElev: 650ft.

Fair

89°F

32°C

Humidity 65%
Wind Speed SE 9 mph
Barometer 30.02 in (1016.1 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index100°F (38°C)
Last update 15 Aug 4:52 pm CDT
Extended Forecast for

Parnell IA

Severe T-storm Watch until August 15, 07:00pm
Heat Advisory August 16, 12:00pm until August 16, 07:00pm
Click here for hazard details and duration
Severe T-storm Watch
Heat Advisory
  •  
    Severe T-storm Watch until August 15, 07:00pm

    NOW until 7:00pm Fri

    Severe T-storm Watch

  • This Afternoon

    High: 87 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 73. Southeast wind around 5 mph.

    Low: 73 °F

    Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 93. Heat index values as high as 103. South wind 5 to 10 mph.

    High: 93 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 72. South wind around 5 mph.

    Low: 72 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 73.

    Low: 73 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 40 percent chance of showers after 1am. Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a steady temperature around 87. South wind around 5 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 73. Southeast wind around 5 mph.
Saturday
Mostly sunny, with a high near 93. Heat index values as high as 103. South wind 5 to 10 mph.
Saturday Night
Mostly clear, with a low around 72. South wind around 5 mph.
Sunday
Sunny, with a high near 91.
Sunday Night
Partly cloudy, with a low around 73.
Monday
Mostly sunny, with a high near 91.
Monday Night
A 40 percent chance of showers after 1am. Partly cloudy, with a low around 71.
Tuesday
Mostly sunny, with a high near 85.
Tuesday Night
Partly cloudy, with a low around 67.
Wednesday
Mostly sunny, with a high near 80.
Wednesday Night
Mostly clear, with a low around 62.
Thursday
Sunny, with a high near 80.
Thursday Night
Mostly clear, with a low around 62.
Friday
Sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Parnell IA
 41.59°N 91.99°W (Elev. 850 ft)
Last Update:
4:04 pm CDT Aug 15, 2025
Forecast Valid:
5pm CDT Aug 15, 2025-6pm CDT Aug 22, 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