| National Weather Service Forecast for:
Grinnell IA Issued by: National Weather Service Des Moines, IA |
||||||||||||||||||
| Updated: 5:57 pm CDT May 8, 2026 | ||||||||||||||||||
| Grinnell | ||||||||||||||||||
|
| Tonight |
A chance of sprinkles before 11pm. Mostly cloudy, then gradually becoming clear, with a low around 46. South southwest wind around 6 mph becoming west northwest after midnight. |
| Saturday |
Increasing clouds, with a high near 76. Light west wind becoming west northwest 9 to 14 mph in the morning. Winds could gust as high as 24 mph. |
| Saturday Night |
Partly cloudy, with a low around 43. North wind 6 to 10 mph, with gusts as high as 18 mph. |
| Sunday |
Sunny, with a high near 65. North wind 5 to 10 mph, with gusts as high as 18 mph. |
| Sunday Night |
Partly cloudy, with a low around 39. North northwest wind around 5 mph becoming calm in the evening. |
| Monday |
Sunny, with a high near 68. |
| Monday Night |
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 52. |
| Tuesday |
Mostly sunny, with a high near 80. Windy. |
| Tuesday Night |
Mostly clear, with a low around 48. |
| Wednesday |
Sunny, with a high near 71. |
| Wednesday Night |
Mostly clear, with a low around 47. |
| Thursday |
Mostly sunny, with a high near 77. |
| Thursday Night |
Partly cloudy, with a low around 54. |
| Friday |
Mostly sunny, with a high near 85. |
Forecast from NOAA-NWS for Grinnell IA.