Hourly Weather Forecast - Grinnell, IA

9 PM
-3°F
0%
8mph
NW
Very Cold
Humidity
74%
Feels like
-18°F
Dew Point
-9°F
10 PM
-4°F
0%
8mph
NW
Very Cold
Humidity
74%
Feels like
-19°F
Dew Point
-10°F
11 PM
-4°F
0%
8mph
NW
Very Cold
Humidity
73%
Feels like
-19°F
Dew Point
-11°F

Wind chill temperatures Monday A.M.

Cold Weather Chills the Nation Down to the Gulf

In the path of a weak low-pressure system that brings snow to the Midwest and Northeast, extreme cold weather and brutally cold wind chill values will bring a bitter cold to much of the Nation.

Snowfall forecast through Sunday evening.

Snow Spreads Across the Ohio Valley into the Mid-Atlantic

Weekend Weather Outlook

Weekend Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide