How is the weather in Grinnell, IA?

At 12:42 AM on Mon, Sep 22, 2025 it is clear and 65 degrees Fahrenheit, feeling like 65 degrees.

Grinnell, IA Weather Forecast and Current Conditions (50112)

65°F
Feels Like 65°F

Humidity 93% Dew Point 63°F Wind S 3 MPH Gusts 5 Barometer 29.86 in.758.4 mm

Solar Rad 0 w/m2

Report from 1.8 miles S of central Grinnell at 12:42 AM Mon, Sep 22, 2025

Current Weather

65°F
Feels Like 65°F

Humidity 93% Dew Point 63°F Wind S 3 MPH Gusts 5 Barometer 29.86 in.758.4 mm

Solar Rad 0 w/m2

Report from 1.8 miles S of central Grinnell at 12:42 AM Mon, Sep 22, 2025

Forecast at a Glance

MonSep 22

10%

78°

60°

TueSep 23

30%

75°

58°

WedSep 24

20%

73°

55°

ThuSep 25

20%

74°

53°

FriSep 26

10%

77°

53°

SatSep 27

79°

55°

SunSep 28

10%

78°

This Date in Weather History

1961 - Hurricane Esther made a near complete circle south of Cape Cod. The hurricane then passed over Cape Cod and hit Maine. Its energy was largely spent over the North Atlantic Ocean, however, heavy rains over Maine resulted in widespread local flooding of cellars, low roads, and underpasses.

Grinnell 7 Day Weather Forecast Details

Monday Sep 22

Day: Patchy fog before 10am. Partly sunny. High near 78, with temperatures falling to around 76 in the afternoon. South southwest wind around 6 mph.

Night: A chance of showers and thunderstorms between 7pm and 3am. Mostly cloudy, with a low around 60. East wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.

Tuesday Sep 23

Day: A chance of rain showers between 8am and 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers and thunderstorms. Mostly cloudy. High near 75, with temperatures falling to around 72 in the afternoon. North northeast wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.

Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. North northeast wind around 6 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

Wednesday Sep 24

Day: A slight chance of rain showers. Partly sunny, with a high near 73. Chance of precipitation is 20%.

Night: A slight chance of rain showers before 7pm. Partly cloudy, with a low around 55. Chance of precipitation is 20%.

Thursday Sep 25

Day: A slight chance of rain showers after 7am. Mostly sunny, with a high near 74. Chance of precipitation is 20%.

Night: A slight chance of rain showers before 7pm. Mostly clear, with a low around 53.

Friday Sep 26

Day: Sunny, with a high near 77.

Night: Mostly clear, with a low around 53.

Saturday Sep 27

Day: Sunny, with a high near 79.

Night: Mostly clear, with a low around 55.

Sunday Sep 28

Day: Sunny, with a high near 78.

Sun & Moon Monthly

First Light 6:30 AM

Sunrise 6:58 AM

Sunset 7:11 PM

Last Light 7:39 PM

Moonrise 7:54 AM

Moonset 7:27 PM

Moon Phase

Stadium Weather - Be Prepared for the Game

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