Hourly Weather Forecast - Grimes, IA

12 AM
39°F
30%
19mph
WNW
30% Chance of Light Rain
Humidity
77%
Feels like
30°F
Dew Point
33°F
1 AM
38°F
30%
20mph
WNW
30% Chance of Light Rain
Humidity
78%
Feels like
27°F
Dew Point
31°F
2 AM
35°F
10%
22mph
WNW
Windy
Humidity
80%
Feels like
24°F
Dew Point
30°F
3 AM
33°F
10%
22mph
WNW
Windy
Humidity
81%
Feels like
21°F
Dew Point
28°F
4 AM
31°F
10%
21mph
NW
Windy
Humidity
81%
Feels like
19°F
Dew Point
26°F
5 AM
29°F
20%
20mph
NW
Mostly Cloudy
Humidity
82%
Feels like
16°F
Dew Point
24°F
6 AM
27°F
10%
19mph
NW
Mostly Cloudy
Humidity
83%
Feels like
14°F
Dew Point
23°F
7 AM
26°F
10%
18mph
NW
Mostly Cloudy
Humidity
84%
Feels like
13°F
Dew Point
22°F
7:31 AM
8 AM
26°F
0%
18mph
NW
Mostly Cloudy
Humidity
83%
Feels like
13°F
Dew Point
22°F
9 AM
27°F
10%
17mph
NW
Mostly Cloudy
Humidity
79%
Feels like
14°F
Dew Point
21°F
10 AM
27°F
10%
16mph
NW
Mostly Cloudy
Humidity
77%
Feels like
15°F
Dew Point
21°F
11 AM
27°F
10%
16mph
NW
Mostly Cloudy
Humidity
74%
Feels like
14°F
Dew Point
19°F
12 PM
26°F
20%
15mph
NW
Mostly Cloudy
Humidity
72%
Feels like
14°F
Dew Point
18°F
1 PM
25°F
20%
14mph
NW
Mostly Cloudy
Humidity
72%
Feels like
13°F
Dew Point
17°F
2 PM
24°F
20%
13mph
WNW
Partly Cloudy
Humidity
73%
Feels like
13°F
Dew Point
17°F
3 PM
23°F
10%
11mph
WNW
Partly Cloudy
Humidity
75%
Feels like
12°F
Dew Point
17°F
4 PM
22°F
10%
9mph
WNW
Partly Cloudy
Humidity
78%
Feels like
12°F
Dew Point
16°F
4:44 PM
5 PM
21°F
10%
7mph
NW
Mostly Cloudy
Humidity
81%
Feels like
12°F
Dew Point
16°F
6 PM
20°F
10%
5mph
NW
Cloudy
Humidity
85%
Feels like
13°F
Dew Point
16°F
7 PM
19°F
10%
4mph
NNW
Cloudy
Humidity
87%
Feels like
13°F
Dew Point
16°F
8 PM
19°F
10%
3mph
N
Cloudy
Humidity
86%
Feels like
14°F
Dew Point
16°F
9 PM
19°F
10%
4mph
N
Cloudy
Humidity
85%
Feels like
13°F
Dew Point
15°F
10 PM
19°F
10%
4mph
NNE
Cloudy
Humidity
84%
Feels like
12°F
Dew Point
15°F
11 PM
19°F
10%
5mph
NE
Cloudy
Humidity
84%
Feels like
11°F
Dew Point
14°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

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