Weather in Grinnell, IA
Updated 2026-09-26 09:00 local time · ZIP codes 50112
Patchy rain nearby
No government weather alerts were returned for this location at the latest update.
Next hours
53°36% rain
52°72% rain53°68% rain53°32% rain54°68% rain
55°18% rain
59°22% rain60°22% rain61°20% rain
61°16% rain61°18% rain
61°24% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Weather insights for today
Rain chance reaches about 72% over the next 12 hours.
It feels like 49°F with winds near 9 mph.
61°F, 16% rain chance and 11 mph wind.
Visibility is around 6 mi; gusts may reach 23 mph.
Current temperature is 53°F, wind 9 mph, rain chance up to 72%.
UV index is 0.
Local weather characteristics in Grinnell
Iowa has a continental climate with hot summers, cold winters, strong winds and a notable spring and summer severe-thunderstorm season.
Grinnell is part of the Midwest weather region. The forecast point is near 41.74°N latitude and 92.72°W longitude. Local temperature, wind and precipitation can still differ from nearby places, especially where terrain, coastlines or urban development create small-scale weather changes.
Grinnell weather today
Patchy rain nearby and 53°F in Grinnell, IA. Today's high is 61°F with a 83% rain chance. Winds are around 9 mph with gusts near 21 mph. Relative humidity is 93%, pressure is 30.15 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Grinnell
Sunrise is at 07:02 AM and sunset is at 07:01 PM. Tomorrow's forecast calls for Overcast with a high near 64°F and a low near 58°F. The maximum rain chance is 34%.