Hazardous Weather Conditions
Current conditions at
Grinnell Municipal Airfield (KGGI)
Lat: 41.71°NLon: 92.73°WElev: 1007ft.
Fair
83°F
28°C
| Humidity | 74% |
| Wind Speed | E 3 mph |
| Barometer | 29.93 in |
| Dewpoint | 74°F (23°C) |
| Visibility | 10.00 mi |
| Heat Index | 90°F (32°C) |
| Last update | 4 Sep 8:15 pm CDT |
Extended Forecast for
Deep River IA
Heat Advisory September 4, 08:22pm until September 5, 07:00pm
NOW until 7:00pm Sat
Heat Advisory
Tonight
Low: 71 °F
Partly Cloudy
Saturday
High: 92 °F
Sunny
Saturday Night
Low: 68 °F
Partly Cloudy
Sunday
High: 86 °F
Chance
ShowersSunday Night
Low: 65 °F
Slight Chance
ShowersLabor Day
High: 85 °F
Mostly Sunny
Monday Night
Low: 67 °F
Partly Cloudy
Tuesday
High: 94 °F
Mostly Sunny
Detailed Forecast
Tonight
Partly cloudy, with a low around 71. Southwest wind around 5 mph becoming calm after midnight.
Saturday
Sunny, with a high near 92. Heat index values as high as 100. Calm wind becoming northeast 5 to 7 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 68. East wind around 7 mph.
Sunday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 4pm, then a chance of showers after 4pm. Partly sunny, with a high near 86. East wind around 8 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 65. East southeast wind around 8 mph.
Labor Day
Mostly sunny, with a high near 85.
Monday Night
Partly cloudy, with a low around 67.
Tuesday
Mostly sunny, with a high near 94.
Tuesday Night
A 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
Mostly sunny, with a high near 89.
Wednesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 65.
Thursday
Mostly sunny, with a high near 83.
Thursday Night
Partly cloudy, with a low around 61.
Friday
Mostly sunny, with a high near 85.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Deep River IA
41.57°N 92.34°W
41.57°N 92.34°W
7:56 pm CDT Sep 4, 2026
8pm CDT Sep 4, 2026-6pm CDT Sep 11, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
