Hazardous Weather Conditions
Current conditions at
Grinnell Municipal Airfield (KGGI)
Lat: 41.71°NLon: 92.73°WElev: 1007ft.N/A
| Humidity | NA |
| Wind Speed | NA |
| Barometer | NA |
| Dewpoint | N/A |
| Visibility | NA |
| Last update | *** Not a current observation *** |
Extended Forecast for
Montezuma IA
Flood Watch August 13, 05:36pm until August 15, 10:00am
NOW until 10:00am Sat
Flood Watch
This Afternoon
High: 79 °F
Chance
T-stormsTonight
Low: 66 °F
T-storms
Friday
High: 85 °F
Chance
T-stormsFriday Night
Low: 71 °F
Chance
T-storms then
Heavy RainSaturday
High: 88 °F
Slight Chance
T-storms then
Slight Chance
ShowersSaturday Night
Low: 68 °F
Slight Chance
T-storms then
Showers
LikelySunday
High: 83 °F
Chance
T-stormsSunday Night
Low: 62 °F
Partly Cloudy
Detailed Forecast
This Afternoon
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 79. East wind around 7 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 2am, then a chance of showers and thunderstorms after 2am. Low around 66. East wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
A 50 percent chance of showers and thunderstorms, mainly after 5pm. Mostly cloudy, with a high near 85. East wind around 10 mph, with gusts as high as 18 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 3am, then a chance of showers and thunderstorms after 3am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 71. East wind 8 to 11 mph becoming south after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Partly sunny, with a high near 88. South wind around 7 mph becoming west northwest in the afternoon. Chance of precipitation is 20%.
Saturday Night
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
Sunday Night
Partly cloudy, with a low around 62.
Monday
Mostly sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 61.
Tuesday
Mostly sunny, with a high near 84.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Wednesday
Mostly cloudy, with a high near 83.
Wednesday Night
Mostly cloudy, with a low around 62.
Thursday
Partly sunny, with a high near 80.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Montezuma IA
41.57°N 92.52°W
41.57°N 92.52°W
3:48 pm CDT Aug 13, 2026
5pm CDT Aug 13, 2026-6pm CDT Aug 20, 2026
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