| National Weather Service Forecast for:
Grinnell IA Issued by: National Weather Service Des Moines, IA |
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| Updated: 6:36 pm CST Jan 14, 2026 | ||||||||||||||||||
| Grinnell | ||||||||||||||||||
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| Tonight |
Mostly clear, with a low around 14. Wind chill values as low as 5. North northwest wind 5 to 15 mph, with gusts as high as 21 mph. |
| Thursday |
A 20 percent chance of snow after 2pm. Partly sunny, with a high near 31. Wind chill values as low as 10. Light and variable wind becoming south 9 to 14 mph in the morning. Winds could gust as high as 21 mph. |
| Thursday Night |
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 28. South southwest wind 10 to 15 mph becoming west northwest in the evening. Winds could gust as high as 26 mph. |
| Friday |
A 40 percent chance of snow showers after noon. Mostly cloudy, with a temperature rising to near 34 by noon, then falling to around 26 during the remainder of the day. Windy, with a west northwest wind 16 to 22 mph, with gusts as high as 30 mph. Little or no snow accumulation expected. |
| Friday Night |
Mostly cloudy, with a low around 7. Windy, with a northwest wind 17 to 21 mph, with gusts as high as 30 mph. |
| Saturday |
Partly sunny, with a high near 11. Blustery. |
| Saturday Night |
Partly cloudy, with a low around 1. |
| Sunday |
Partly sunny, with a high near 20. |
| Sunday Night |
Mostly cloudy, with a low around 3. Blustery. |
| M.L.King Day |
Mostly sunny, with a high near 14. Blustery. |
| Monday Night |
Partly cloudy, with a low around 4. |
| Tuesday |
Partly sunny, with a high near 23. |
| Tuesday Night |
Mostly cloudy, with a low around 12. |
| Wednesday |
Partly sunny, with a high near 28. |
Forecast from NOAA-NWS for Grinnell IA.