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

Hazardous Weather Conditions

Current conditions at

Washington (KAWG)

Lat: 41.28°NLon: 91.67°WElev: 755ft.

Fair

77°F

25°C

Humidity 100%
Wind Speed S 9 mph
Barometer 29.77 in
Dewpoint 77°F (25°C)
Visibility 9.00 mi
Heat Index78°F (26°C)
Last update 12 Aug 2:55 am CDT
Extended Forecast for

Harper IA

  • Overnight

    Overnight: Patchy fog. Otherwise, partly cloudy, with a low around 71. Northeast wind 5 to 10 mph.

    Low: 71 °F

    Patchy Fog

  • Wednesday

    Wednesday: Occasional showers and thunderstorms, mainly before noon. Patchy fog before 8am, then patchy fog after 3pm. High near 87. Southeast wind around 10 mph. Chance of precipitation is 80%.

    High: 87 °F

    T-storms and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly after 5am. Patchy fog. Otherwise, partly cloudy, with a low around 69. East wind around 5 mph.

    Low: 69 °F

    Patchy Fog
    then Chance
    Showers and
    Patchy Fog

  • Thursday

    Thursday: Showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm. High near 83. East wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 83 °F

    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 7pm, then showers likely and possibly a thunderstorm between 7pm and 1am, then showers after 1am. Low around 68. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 68 °F

    Showers

  • Friday

    Friday: Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm. Mostly cloudy, with a high near 84. Chance of precipitation is 60%.

    High: 84 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.

    Low: 70 °F

    Mostly Cloudy
    then Showers
    Likely

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 88.

    High: 88 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69.

    Low: 69 °F

    Partly Cloudy
    then Chance
    T-storms

Detailed Forecast

Overnight
Patchy fog. Otherwise, partly cloudy, with a low around 71. Northeast wind 5 to 10 mph.
Wednesday
Occasional showers and thunderstorms, mainly before noon. Patchy fog before 8am, then patchy fog after 3pm. High near 87. Southeast wind around 10 mph. Chance of precipitation is 80%.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly after 5am. Patchy fog. Otherwise, partly cloudy, with a low around 69. East wind around 5 mph.
Thursday
Showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm. High near 83. East wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
A chance of showers and thunderstorms before 7pm, then showers likely and possibly a thunderstorm between 7pm and 1am, then showers after 1am. Low around 68. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm. Mostly cloudy, with a high near 84. Chance of precipitation is 60%.
Friday Night
Showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Saturday
A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 88.
Saturday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69.
Sunday
Partly sunny, with a high near 82.
Sunday Night
Mostly cloudy, with a low around 64.
Monday
Mostly sunny, with a high near 79.
Monday Night
Partly cloudy, with a low around 62.
Tuesday
Mostly sunny, with a high near 80.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harper IA
 41.37°N 92.06°W (Elev. 827 ft)
Last Update:
3:06 am CDT Aug 12, 2026
Forecast Valid:
3am CDT Aug 12, 2026-6pm CDT Aug 18, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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