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Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
05:40
Sunrise
20:41
Sunset
Daily Forecast
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Tuesday
Wednesday
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Saturday
Air Quality Data Available
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Resources
UV Index
Humidity
Frequently asked questions about weather in Grinnell
How warm does it get in Grinnell?
The warmest month in Grinnell is July, with average high temperatures of 30°C. The average temperature during this period is around 24°C.
How cold does it get in Grinnell?
The coldest month in Grinnell is January, with average low temperatures of -8°C. The average temperature during this period is around -5°C.
What is the wettest time of year in Grinnell?
The wettest month in Grinnell is May, with an average of 152mm of precipitation.
What is the driest time of year in Grinnell?
The driest month in Grinnell is December, with an average of 43mm of precipitation.
