Flooding Risks from Tropical Moisture Across the Intermountain West and East Coast

Tropical moisture from Isaias and Rachel will impact portions of the Intermountain West and East Coast states. Flooding, gusty winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, record warmth will spread northward across the Mississippi Valley the next few days. Looking for snow, the first winter storm of the season is underway across the northern Rockies. Read More >

Current conditions at

Grinnell Municipal Airfield (KGGI)

Lat: 41.71°NLon: 92.73°WElev: 1007ft.

Fair

84°F

29°C

Humidity 35%
Wind Speed S 13 G 20 mph
Barometer 29.85 in
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 11 Oct 5:15 pm CDT
Extended Forecast for

Montezuma IA

  • Tonight

    Tonight: Mostly clear during the early evening, then becoming mostly cloudy, with a low around 68. South wind around 10 mph, with gusts as high as 18 mph.

    Low: 68 °F

    Mostly Cloudy

  • Columbus Day

    Columbus Day: Sunny, with a high near 86. South southwest wind 9 to 14 mph, with gusts as high as 23 mph.

    High: 86 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 64. South southwest wind 7 to 11 mph, with gusts as high as 22 mph.

    Low: 64 °F

    Clear

  • Tuesday

    Tuesday: A 30 percent chance of showers after 1pm.  Sunny, with a high near 80. Northwest wind around 5 mph becoming calm  in the morning.  New precipitation amounts of less than a tenth of an inch possible.

    High: 80 °F

    Sunny then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 59. North wind 3 to 7 mph.  Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 59 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A 30 percent chance of showers before 1pm.  Partly sunny, with a high near 70. New precipitation amounts of less than a tenth of an inch possible.

    High: 70 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms after 1am.  Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a high near 66. Chance of precipitation is 70%.

    High: 66 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear during the early evening, then becoming mostly cloudy, with a low around 68. South wind around 10 mph, with gusts as high as 18 mph.
Columbus Day
Sunny, with a high near 86. South southwest wind 9 to 14 mph, with gusts as high as 23 mph.
Monday Night
Clear, with a low around 64. South southwest wind 7 to 11 mph, with gusts as high as 22 mph.
Tuesday
A 30 percent chance of showers after 1pm. Sunny, with a high near 80. Northwest wind around 5 mph becoming calm in the morning. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 59. North wind 3 to 7 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
A 30 percent chance of showers before 1pm. Partly sunny, with a high near 70. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A 50 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 55.
Thursday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 66. Chance of precipitation is 70%.
Thursday Night
Mostly cloudy, with a low around 48.
Friday
Mostly sunny, with a high near 58. Windy.
Friday Night
Mostly clear, with a low around 35.
Saturday
Sunny, with a high near 56.
Saturday Night
Mostly clear, with a low around 38.
Sunday
Sunny, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
Montezuma IA
 41.57°N 92.52°W
5:21 pm CDT Oct 11, 2026
5pm CDT Oct 11, 2026-6pm CDT Oct 18, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database