Hourly Weather Forecast - Grimes, IA

12 AM
30°F
0%
6mph
W
Clear
Humidity
68%
Feels like
24°F
Dew Point
21°F
1 AM
29°F
0%
5mph
W
Clear
Humidity
70%
Feels like
23°F
Dew Point
20°F
2 AM
28°F
0%
4mph
WNW
Clear
Humidity
71%
Feels like
23°F
Dew Point
20°F
3 AM
27°F
0%
3mph
WNW
Clear
Humidity
72%
Feels like
23°F
Dew Point
19°F
4 AM
26°F
0%
3mph
NW
Clear
Humidity
74%
Feels like
26°F
Dew Point
19°F
5 AM
25°F
0%
3mph
NW
Clear
Humidity
75%
Feels like
25°F
Dew Point
18°F
6 AM
24°F
10%
3mph
NNW
Clear
Humidity
75%
Feels like
24°F
Dew Point
18°F
7 AM
24°F
10%
3mph
N
Clear
Humidity
74%
Feels like
24°F
Dew Point
17°F
7:38 AM
8 AM
25°F
10%
3mph
NNE
Sunny
Humidity
70%
Feels like
25°F
Dew Point
17°F
9 AM
28°F
10%
3mph
ENE
Sunny
Humidity
64%
Feels like
24°F
Dew Point
17°F
10 AM
31°F
10%
4mph
E
Sunny
Humidity
57%
Feels like
28°F
Dew Point
18°F
11 AM
35°F
10%
4mph
SE
Sunny
Humidity
51%
Feels like
31°F
Dew Point
19°F
12 PM
38°F
10%
5mph
SE
Sunny
Humidity
47%
Feels like
34°F
Dew Point
19°F
1 PM
40°F
10%
5mph
SSE
Mostly Sunny
Humidity
45%
Feels like
36°F
Dew Point
20°F
2 PM
41°F
10%
6mph
SSE
Mostly Sunny
Humidity
45%
Feels like
37°F
Dew Point
21°F
3 PM
41°F
10%
6mph
SSE
Partly Cloudy
Humidity
47%
Feels like
36°F
Dew Point
22°F
4 PM
39°F
10%
6mph
SSE
Partly Cloudy
Humidity
51%
Feels like
34°F
Dew Point
23°F
4:47 PM
5 PM
37°F
10%
7mph
SSE
Partly Cloudy
Humidity
58%
Feels like
32°F
Dew Point
23°F
6 PM
35°F
10%
7mph
SSE
Partly Cloudy
Humidity
62%
Feels like
29°F
Dew Point
24°F
7 PM
34°F
10%
8mph
SSE
Mostly Cloudy
Humidity
65%
Feels like
28°F
Dew Point
24°F
8 PM
35°F
0%
9mph
SSE
Mostly Cloudy
Humidity
66%
Feels like
28°F
Dew Point
24°F
9 PM
35°F
10%
9mph
SSE
Mostly Cloudy
Humidity
65%
Feels like
27°F
Dew Point
24°F
10 PM
35°F
10%
10mph
SSE
Mostly Cloudy
Humidity
64%
Feels like
28°F
Dew Point
24°F
11 PM
35°F
10%
10mph
SSE
Mostly Cloudy
Humidity
64%
Feels like
28°F
Dew Point
24°F

Rainfall and Snowfall Totals Through Thursday

Flooding Rain, Heavy Snow and Winds Slam Northwest, North-Central U.S.

The atmospheric river this week will keep buffeting the Pacific Northwest with heavy rain, snow, and high winds.

Thursday's Weather Outlook

Thursday's 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 person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

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

Cold Air Damming - Cause And Effects

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