What is today's weather forecast for Grinnell, IA?

Today's forecast for Grinnell shows a low of -11 degrees Fahrenheit. Partly cloudy, with a low around -11.

What is the 7-day weather forecast for Grinnell, IA?

The 7-day forecast for Grinnell shows highs from 9 to 34 degrees and lows from -11 to 24 degrees Fahrenheit. Expect precipitation on 2 days with chances of 20% or higher.

Will it rain in Grinnell, IA this week?

Yes, rain is possible in Grinnell this week. Precipitation chances: Saturday (40% chance), Tuesday (30% chance).

How accurate is the Grinnell weather forecast?

WeatherForYou provides highly accurate Grinnell forecasts using National Weather Service data and current conditions from the nearest available weather stations, often miles closer than regional airports, for the most precise local forecasts.

Grinnell, IA Weather Forecast and Current Conditions

Current Conditions From Nearby Local Station

Switch to Metric Units

-2°F
Feels Like -2°F

Humidity 82% Dew Point -6°F Wind Calm Barometer 30.4 in.

Visibility 10 mi.

Report from a NOAA weather station 1.9 mi. SSW of central Grinnell
at 1:35 AM Thu, Dec 4, 2025

Point Forecast at a Glance

WedDec 3

-11

ThuDec 4

FriDec 5

SatDec 6

20%

SunDec 7

-2

MonDec 8

TueDec 9

7-Day Temperature Trend

Week Ahead Summary

High temperatures climb from 9°F to a high of 33°F by week's end. Some snow possible with at least 2 days showing precipitation chances of 20% or higher.

Climate Context

This week's forecast shows temperatures running 9°F below the historical average for December. Normal highs for this period are around 34°F with lows around 17°F.

This Date in Weather History

1926 - Yuma, AZ, was soaked with 1.10 inch of rain, and by the 10th of the month had received 4.43 inches, making it the wettest December of record. The average annual rainfall for Yuma is 3.38 inches.

Grinnell, IA 7 Day Weather Forecast Details

Wednesday Dec 3

Night: Partly cloudy, with a low around -11. Wind chill values as low as -20. Northwest wind 3 to 8 mph.

Thursday Dec 4

Day: Sunny and cold, with a high near 9. Wind chill values as low as -20. Calm wind becoming south 5 to 7 mph in the afternoon.

Night: Partly cloudy, with a temperature rising to around 13 by 4am. Wind chill values as low as -10. South southwest wind 8 to 10 mph, with gusts as high as 18 mph.

Friday Dec 5

Day: Partly sunny, with a high near 28. Wind chill values as low as 5. West southwest wind 5 to 7 mph.

Night: Mostly cloudy, with a low around 18. West wind 3 to 5 mph.

Saturday Dec 6

Day: A 20 percent chance of snow after noon. Mostly cloudy, with a high near 26.

Night: A 40 percent chance of snow. Mostly cloudy, with a low around 8.

Sunday Dec 7

Day: Partly sunny, with a high near 18.

Night: Mostly cloudy, with a low around -2.

Monday Dec 8

Day: Partly sunny, with a high near 26.

Night: Mostly cloudy, with a low around 16.

Tuesday Dec 9

Day: Partly sunny, with a high near 33.

Night: A 30 percent chance of snow. Mostly cloudy, with a low around 24.

Wednesday Dec 10

Day: Partly sunny, with a high near 34.

About Grinnell, IA

Grinnell ( grin-EL) is a city in Poweshiek County, Iowa, United States. The population was 9,564 at the time of the 2020 census. It is best known for being the home of Grinnell College, a liberal arts college.

Content from Wikipedia, licensed under CC BY-SA 3.0.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.

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