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

Extreme Fire Weather Concerns for the Western U.S.; Severe Weather and Flooding Threats for the Central U.S.

Extremely critical fire weather conditions are expected to develop across the Great Basin and Southwest today, and exceptionally dry and windy conditions will promote rapid wildfire spread through the weekend. Scattered severe thunderstorms and heavy rain are possible across parts of the Ozark Plateau into lower Ohio Valley and parts of the northern Rockies into adjacent Great Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Washington (KAWG)

Lat: 41.28°NLon: 91.67°WElev: 755ft.

70°F

21°C

Humidity 100%
Wind Speed SE 7 mph
Barometer 29.88 in
Dewpoint 70°F (21°C)
Visibility NA
Last update 27 Jun 10:35 pm CDT
Extended Forecast for

Harper IA

Extreme Heat Warning June 28, 01:00pm until June 30, 09:00pm
Click here for hazard details and duration
Extreme Heat Warning

  • Tonight

    Tonight: Mostly cloudy, with a low around 67. East wind around 10 mph, with gusts as high as 20 mph.

    Low: 67 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 91. Heat index values as high as 103. Breezy, with a southeast wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 91 °F

    Mostly Sunny
    and Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 74. South wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 74 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 93. Heat index values as high as 107. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 93 °F

    Sunny then
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 67. East wind around 10 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 91. Heat index values as high as 103. Breezy, with a southeast wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Partly cloudy, with a low around 74. South wind 10 to 15 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 93. Heat index values as high as 107. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.
Monday Night
Mostly clear, with a low around 75.
Tuesday
Sunny, with a high near 94.
Tuesday Night
Mostly clear, with a low around 74.
Wednesday
Sunny, with a high near 93.
Wednesday Night
Mostly clear, with a low around 73.
Thursday
Sunny, with a high near 94.
Thursday Night
Mostly clear, with a low around 72.
Friday
Sunny, with a high near 94.
Friday Night
Mostly clear, with a low around 72.
Independence Day
Sunny, with a high near 92.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harper IA
 41.37°N 92.06°W (Elev. 827 ft)
Last Update:
8:47 pm CDT Jun 27, 2026
Forecast Valid:
10pm CDT Jun 27, 2026-6pm CDT Jul 4, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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