Grinnell Weather Forecast
- 39
- 64
Chance Rain Showers
- 37
- 57
Mostly Cloudy
- 40
- 54
Rain Showers
- 35
- 53
Chance Rain Showers
- 31
- 51
Partly Sunny
- 34
- 54
Mostly Sunny
Today 29 Mar Poweshiek
Partly sunny in the Morning, then mostly cloudy with a slight chance of rain Showers in the afternoon. Highs in the mid 60s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.
Tonight 29 Mar Poweshiek
Mostly cloudy with a chance of Showers. Lows around 40. Southeast Winds 5 to 10 Mph, becoming west 10 to 15 Mph after midnight. Chance of rain 30 percent.
Grinnell Temperature Statistics
March Temperature
Newton Municipal Airport - Earl Johnson Field (15.5 miles)
Lowest 18 March, 2024
19.4 °FAverage March
42.8 °FHighest 3 March, 2024
78.8 °F
Climate (2019–Present)
Newton Municipal Airport - Earl Johnson Field (15.5 miles)
Take a look at our website widgetsAvailable free! Find Out MoreAverage Low 2019–2024
41.2 °FAverage 2019–2024
50.7 °FAverage High 2019–2024
60.4 °F