Hourly Weather Forecast - Grimes, IA

6 PM
34°F
0%
7mph
W
Mostly Cloudy
Humidity
82%
Feels like
28°F
Dew Point
29°F
7 PM
35°F
0%
7mph
WNW
Mostly Cloudy
Humidity
84%
Feels like
28°F
Dew Point
30°F
8 PM
35°F
0%
8mph
WNW
Mostly Cloudy
Humidity
84%
Feels like
29°F
Dew Point
31°F
9 PM
36°F
0%
8mph
WNW
Mostly Cloudy
Humidity
84%
Feels like
30°F
Dew Point
32°F
10 PM
36°F
0%
8mph
NW
Mostly Cloudy
Humidity
85%
Feels like
30°F
Dew Point
32°F
11 PM
35°F
30%
7mph
NW
30% Chance of Light Rain
Humidity
86%
Feels like
28°F
Dew Point
31°F

Snowfall Forecast Through Saturday

Snowfall to Pack Slopes in the Rockies

Hefty snowpack additions are expected into the weekend for the Cascades and northern Rockies.

Weekend Weather Outlook

Weekend Weather Outlook

Weekly Drought Map for December 4, 2025

Active Week of Weather Leads to Mixed Drought Results

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

Cold Air Damming - Cause And Effects

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

Image courtesy of PeakPX.

Top 10 Winter Energy Saving Tips

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide