Heavy Rain and Thunderstorms in the Mississippi Valley; Flooding Continues Along the East Coast of Florida

A cold front approaching the Mississippi Valley will bring heavy rainfall and isolated severe thunderstorms to the region. Thunderstorms will have the potential to produce isolated severe wind gusts and perhaps a brief tornado or two. Significant river flooding is forecast along the St. John’s and the Peace rivers in Florida through the end of the week as flood waters will be slow to recede. Read More >

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Fog/Mist

49°F

9°C

Humidity 97%
Wind Speed SW 12 mph
Barometer 29.64 in
Dewpoint 49°F (9°C)
Visibility 2.00 mi
Wind Chill44°F (7°C)
Last update 4 Nov 12:15 am CST
Extended Forecast for

Grinnell IA

  • Overnight

    Overnight: A 20 percent chance of showers before 2am.  Cloudy, with a low around 46. West southwest wind around 11 mph, with gusts as high as 18 mph.

    Low: 46 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A 20 percent chance of showers between noon and 1pm.  Mostly cloudy, with a high near 54. West wind 11 to 14 mph, with gusts as high as 23 mph.

    High: 54 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Cloudy, with a low around 42. West wind around 11 mph, with gusts as high as 21 mph.

    Low: 42 °F

    Cloudy

  • Thursday

    Thursday: A 50 percent chance of showers between noon and 1pm.  Cloudy, with a high near 54. West wind around 10 mph, with gusts as high as 18 mph.  New precipitation amounts of less than a tenth of an inch possible.

    High: 54 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 38. North wind around 8 mph.

    Low: 38 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of showers before 2am. Cloudy, with a low around 46. West southwest wind around 11 mph, with gusts as high as 18 mph.
Wednesday
A 20 percent chance of showers between noon and 1pm. Mostly cloudy, with a high near 54. West wind 11 to 14 mph, with gusts as high as 23 mph.
Wednesday Night
Cloudy, with a low around 42. West wind around 11 mph, with gusts as high as 21 mph.
Thursday
A 50 percent chance of showers between noon and 1pm. Cloudy, with a high near 54. West wind around 10 mph, with gusts as high as 18 mph. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Mostly cloudy, with a low around 38. North wind around 8 mph.
Friday
Mostly sunny, with a high near 49.
Friday Night
Partly cloudy, with a low around 29.
Saturday
Mostly sunny, with a high near 51.
Saturday Night
Mostly clear, with a low around 34.
Sunday
Sunny, with a high near 58.
Sunday Night
Clear, with a low around 35.
Monday
Sunny, with a high near 63.
Monday Night
Clear, with a low around 40.
Tuesday
Sunny, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
Grinnell IA
 41.75°N 92.72°W
12:26 am CST Nov 4, 2026
12am CST Nov 4, 2026-6pm CST Nov 10, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database