| NWS Forecast for: Grinnell IA Issued by: National Weather Service Des Moines, IA Last Update: 10:32 pm CDT May 21, 2025 | |
| Tonight: Partly cloudy, with a low around 42. West northwest wind around 8 mph. Thursday: Increasing clouds, with a high near 60. Northwest wind 10 to 13 mph, with gusts as high as 20 mph. Thursday Night: Mostly clear, with a low around 42. North northwest wind 5 to 9 mph becoming light west. Friday: Increasing clouds, with a high near 67. West northwest wind around 6 mph. Friday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 48. East wind 3 to 6 mph. Saturday: A 30 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 64. New precipitation amounts of less than a tenth of an inch possible. Saturday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 49. Chance of precipitation is 60%. Sunday: A 40 percent chance of showers. Mostly cloudy, with a high near 62. Sunday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 46. Memorial Day: A 30 percent chance of showers. Partly sunny, with a high near 65. Monday Night: Partly cloudy, with a low around 46. Tuesday: Mostly sunny, with a high near 69. Tuesday Night: Mostly clear, with a low around 47. Wednesday: Sunny, with a high near 74. | |
| Grinnell IA 41.75°N 92.72°W | |
Visit your local NWS office at: https://www.weather.gov/desmoines |