Severe Thunderstorms in the Central Plains and Lower Missouri Valley; Heat Continues in the Southeast and Southwest

Severe thunderstorms capable of large hail and damaging wind gusts are forecast to impact the central Plains into the Lower Missouri Valley through this afternoon. Dangerous heat persists across the southern Plains, Southeast U.S. and Puerto Rico this week, and will return to the Southwest today. Read More >

Hazardous Weather Conditions

Current conditions at

Washington (KAWG)

Lat: 41.28°NLon: 91.67°WElev: 755ft.

Fair

81°F

27°C

Humidity 79%
Wind Speed SW 12 mph
Barometer 29.91 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 18 Aug 6:15 pm CDT
Extended Forecast for

Cotter IA

  • Tonight

    Tonight: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 66. West wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 40%.

    Low: 66 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 81. Calm wind becoming northeast around 5 mph in the morning.

    High: 81 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 61. North wind around 5 mph becoming calm.

    Low: 61 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 82. Calm wind becoming southeast around 5 mph.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Friday

    Friday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm.  Sunny, with a high near 83. Chance of precipitation is 30%.

    High: 83 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms before 1am.  Mostly clear, with a low around 64.

    Low: 64 °F

    Chance
    T-storms

  • Saturday

    Saturday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 81. Calm wind becoming northeast around 5 mph in the morning.
Wednesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 61. North wind around 5 mph becoming calm.
Thursday
Sunny, with a high near 82. Calm wind becoming southeast around 5 mph.
Thursday Night
Mostly clear, with a low around 64.
Friday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Sunny, with a high near 83. Chance of precipitation is 30%.
Friday Night
A 30 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 64.
Saturday
Sunny, with a high near 81.
Saturday Night
Mostly clear, with a low around 61.
Sunday
Mostly sunny, with a high near 78.
Sunday Night
Mostly cloudy, with a low around 62.
Monday
Mostly sunny, with a high near 80.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
Mostly sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
Cotter IA
 41.29°N 91.48°W (Elev. 748 ft)
2:51 pm CDT Aug 18, 2026
6pm CDT Aug 18, 2026-6pm CDT Aug 25, 2026
 
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Additional Resources

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