Hourly Weather Forecast - Grimes, IA

12 AM
17°F
0%
17mph
WNW
Clear
Humidity
54%
Feels like
2°F
Dew Point
4°F
1 AM
17°F
0%
16mph
WNW
Clear
Humidity
52%
Feels like
2°F
Dew Point
2°F
2 AM
17°F
0%
14mph
NW
Clear
Humidity
51%
Feels like
2°F
Dew Point
2°F
3 AM
17°F
0%
13mph
NW
Clear
Humidity
50%
Feels like
3°F
Dew Point
1°F
4 AM
17°F
0%
11mph
NW
Clear
Humidity
50%
Feels like
4°F
Dew Point
1°F
5 AM
17°F
0%
9mph
NW
Clear
Humidity
50%
Feels like
5°F
Dew Point
1°F
6 AM
17°F
0%
7mph
WNW
Clear
Humidity
51%
Feels like
7°F
Dew Point
2°F
7 AM
17°F
0%
5mph
WNW
Mostly Clear
Humidity
50%
Feels like
9°F
Dew Point
2°F
7:37 AM
8 AM
18°F
0%
3mph
W
Partly Cloudy
Humidity
49%
Feels like
18°F
Dew Point
2°F
9 AM
20°F
0%
2mph
SW
Partly Cloudy
Humidity
46%
Feels like
20°F
Dew Point
3°F
10 AM
23°F
0%
3mph
SSW
Partly Cloudy
Humidity
43%
Feels like
19°F
Dew Point
4°F
11 AM
26°F
0%
5mph
S
Mostly Sunny
Humidity
39%
Feels like
20°F
Dew Point
5°F
12 PM
29°F
0%
8mph
S
Sunny
Humidity
37%
Feels like
22°F
Dew Point
6°F
1 PM
32°F
0%
10mph
SSE
Sunny
Humidity
36%
Feels like
23°F
Dew Point
8°F
2 PM
33°F
0%
12mph
SSE
Mostly Sunny
Humidity
35%
Feels like
24°F
Dew Point
9°F
3 PM
34°F
0%
13mph
SSE
Mostly Sunny
Humidity
36%
Feels like
25°F
Dew Point
10°F
4 PM
34°F
0%
13mph
SSE
Mostly Sunny
Humidity
39%
Feels like
25°F
Dew Point
11°F
4:46 PM
5 PM
33°F
0%
12mph
SSE
Mostly Clear
Humidity
42%
Feels like
24°F
Dew Point
13°F
6 PM
33°F
0%
11mph
SSE
Mostly Clear
Humidity
48%
Feels like
24°F
Dew Point
15°F
7 PM
32°F
0%
11mph
SSE
Mostly Clear
Humidity
51%
Feels like
24°F
Dew Point
16°F
8 PM
33°F
0%
11mph
S
Partly Cloudy
Humidity
54%
Feels like
24°F
Dew Point
18°F
9 PM
33°F
0%
11mph
S
Partly Cloudy
Humidity
56%
Feels like
25°F
Dew Point
19°F
10 PM
34°F
0%
11mph
S
Partly Cloudy
Humidity
58%
Feels like
26°F
Dew Point
20°F
11 PM
35°F
0%
11mph
S
Partly Cloudy
Humidity
59%
Feels like
27°F
Dew Point
22°F

Forecast Peak Wind Gusts Today

High Winds, Rain, and Snow Cross the Country

A clipper moving over the Great Lakes brings rain, snow, and high winds through the Atlantic Coastline.

Rainfall and Snowfall Totals Through Friday

Atmospheric River Symptoms Repeat in the Northwest

Thursday's Weather Outlook

Today's Weather Outlook

Flu Update Valid For Week Ending December 6, 2025

Weekly Flu Update: Flu Exceeds Annual Baseline

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

How to Measure Snow via NWS

How To Measure Snow

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide