Severe Weather and Heavy Rain from the Ohio Valley to the Mid-Atlantic; Heat Persists in the South-Central U.S.

Widespread strong thunderstorms with damaging winds and locally heavy rain are expected across portions of the Ohio Valley into southern Mid-Atlantic and Carolinas. Rounds of strong thunderstorms are expected to develop across the northern and central Plains. Sweltering heat remains most persistent across the South-Central Plains and Lower/Middle Mississippi Valley through next week. Read More >

Hazardous Weather Conditions

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Fair

84°F

29°C

Humidity 76%
Wind Speed NE 3 mph
Barometer 29.97 in
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 5 Sep 7:15 pm CDT
Extended Forecast for

Deep River IA

  • Tonight

    Tonight: Partly cloudy, with a low around 67. East northeast wind around 8 mph.

    Low: 67 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 85. East wind around 8 mph.

    High: 85 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 63. East southeast wind around 9 mph.

    Low: 63 °F

    Partly Cloudy

  • Labor Day

    Labor Day: Mostly sunny, with a high near 85. Southeast wind 8 to 11 mph, with gusts as high as 18 mph.

    High: 85 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 66. East southeast wind 10 to 13 mph, with gusts as high as 20 mph.

    Low: 66 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Partly cloudy, with a low around 71. Chance of precipitation is 60%.

    Low: 71 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: A 20 percent chance of showers before 1pm.  Mostly sunny, with a high near 87.

    High: 87 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 67. East northeast wind around 8 mph.
Sunday
Partly sunny, with a high near 85. East wind around 8 mph.
Sunday Night
Partly cloudy, with a low around 63. East southeast wind around 9 mph.
Labor Day
Mostly sunny, with a high near 85. Southeast wind 8 to 11 mph, with gusts as high as 18 mph.
Monday Night
Partly cloudy, with a low around 66. East southeast wind 10 to 13 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 93.
Tuesday Night
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 71. Chance of precipitation is 60%.
Wednesday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 87.
Wednesday Night
Partly cloudy, with a low around 62.
Thursday
Mostly sunny, with a high near 82.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Mostly sunny, with a high near 84.
Friday Night
Mostly clear, with a low around 62.
Saturday
Sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
Deep River IA
 41.57°N 92.37°W
6:06 pm CDT Sep 5, 2026
7pm CDT Sep 5, 2026-6pm CDT Sep 12, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database