| National Weather Service Forecast for:
Grinnell IA Issued by: National Weather Service Des Moines, IA |
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| Updated: 3:16 pm CST Nov 30, 2025 | ||||||||||||||||||
| Grinnell | ||||||||||||||||||
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| This Afternoon |
Mostly cloudy, with a high near 22. Wind chill values as low as 10. Northwest wind 8 to 10 mph. |
| Tonight |
Mostly cloudy, with a low around 7. Northwest wind 5 to 7 mph becoming calm in the evening. |
| Monday |
Snow, mainly after 10am. High near 20. Light and variable wind. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible. |
| Monday Night |
A 20 percent chance of snow before 9pm. Mostly cloudy, with a low around 8. Light west southwest wind. |
| Tuesday |
Partly sunny, with a high near 26. Calm wind becoming south southwest around 6 mph in the morning. |
| Tuesday Night |
Mostly cloudy, with a low around 18. |
| Wednesday |
A 20 percent chance of snow. Mostly cloudy, with a high near 30. |
| Wednesday Night |
Mostly cloudy, with a low around -10. |
| Thursday |
Sunny and cold, with a high near 7. |
| Thursday Night |
Partly cloudy, with a low around -3. |
| Friday |
Partly sunny, with a high near 26. |
| Friday Night |
Mostly cloudy, with a low around 14. |
| Saturday |
Mostly cloudy, with a high near 28. |
Forecast from NOAA-NWS for Grinnell IA.