| National Weather Service Forecast for:
Grinnell IA Issued by: National Weather Service Des Moines, IA |
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| Updated: 9:07 pm CDT Jun 1, 2026 | ||||||||||||||||||
| Grinnell | ||||||||||||||||||
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| Tonight |
Mostly clear, with a low around 55. North northeast wind 5 to 8 mph becoming east after midnight. |
| Tuesday |
Sunny, with a high near 81. East southeast wind 6 to 10 mph. |
| Tuesday Night |
Mostly clear, with a low around 55. East southeast wind 5 to 7 mph. |
| Wednesday |
Sunny, with a high near 81. South wind 6 to 10 mph. |
| Wednesday Night |
Partly cloudy, with a low around 57. South wind around 7 mph. |
| Thursday |
Mostly sunny, with a high near 85. |
| Thursday Night |
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64. |
| Friday |
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 84. |
| Friday Night |
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65. |
| Saturday |
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 85. |
| Saturday Night |
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65. |
| Sunday |
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. |
| Sunday Night |
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66. |
| Monday |
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. |
Forecast from NOAA-NWS for Grinnell IA.