Hazardous Weather Conditions

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Mostly Cloudy

59°F

15°C

Humidity 65%
Wind Speed S 10 mph
Barometer 30.21 in
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 10 Oct 12:55 am CDT
Extended Forecast for

Deep River IA

  • Overnight

    Overnight: A chance of showers and thunderstorms before 4am, then showers likely and possibly a thunderstorm between 4am and 5am, then a chance of showers and thunderstorms after 5am.  Mostly cloudy, with a steady temperature around 57. South wind around 9 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Showers
    Likely

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly before 7am.  Mostly cloudy, then gradually becoming sunny, with a high near 76. South southwest wind around 9 mph becoming northwest in the afternoon.  New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 76 °F

    Chance
    Showers then
    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 41. North northeast wind around 6 mph.

    Low: 41 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 69. East wind 3 to 6 mph.

    High: 69 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 49. East southeast wind 5 to 8 mph.

    Low: 49 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 76. Breezy.

    High: 76 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: A 20 percent chance of showers.  Mostly cloudy, with a low around 59.

    Low: 59 °F

    Slight Chance
    Showers

  • Columbus Day

    Columbus Day: A 20 percent chance of showers before 1pm.  Mostly sunny, with a high near 73.

    High: 73 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

Detailed Forecast

Overnight
A chance of showers and thunderstorms before 4am, then showers likely and possibly a thunderstorm between 4am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a steady temperature around 57. South wind around 9 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A 30 percent chance of showers and thunderstorms, mainly before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 76. South southwest wind around 9 mph becoming northwest in the afternoon. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Mostly clear, with a low around 41. North northeast wind around 6 mph.
Saturday
Sunny, with a high near 69. East wind 3 to 6 mph.
Saturday Night
Partly cloudy, with a low around 49. East southeast wind 5 to 8 mph.
Sunday
Mostly sunny, with a high near 76. Breezy.
Sunday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 59.
Columbus Day
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 45.
Tuesday
Mostly sunny, with a high near 66.
Tuesday Night
Mostly cloudy, with a low around 46.
Wednesday
Mostly sunny, with a high near 69.
Wednesday Night
Partly cloudy, with a low around 48.
Thursday
Mostly sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
Deep River IA
 41.57°N 92.37°W
12:57 am CDT Oct 10, 2025
1am CDT Oct 10, 2025-6pm CDT Oct 16, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database