Hourly Weather Forecast - Grimes, IA

1 AM
28°F
0%
2mph
NNW
Clear
Humidity
70%
Feels like
28°F
Dew Point
20°F
2 AM
27°F
0%
1mph
NE
Clear
Humidity
73%
Feels like
27°F
Dew Point
20°F
3 AM
26°F
0%
1mph
ENE
Clear
Humidity
74%
Feels like
26°F
Dew Point
19°F
4 AM
26°F
0%
1mph
ESE
Clear
Humidity
77%
Feels like
26°F
Dew Point
19°F
5 AM
25°F
0%
2mph
SSE
Clear
Humidity
80%
Feels like
25°F
Dew Point
20°F
6 AM
24°F
0%
3mph
S
Clear
Humidity
86%
Feels like
24°F
Dew Point
21°F
7 AM
24°F
0%
4mph
SSE
Clear
Humidity
87%
Feels like
20°F
Dew Point
21°F
7:38 AM
8 AM
26°F
0%
4mph
SSE
Sunny
Humidity
83%
Feels like
21°F
Dew Point
22°F
9 AM
30°F
0%
6mph
SSE
Sunny
Humidity
74%
Feels like
24°F
Dew Point
22°F
10 AM
34°F
0%
6mph
S
Sunny
Humidity
65%
Feels like
28°F
Dew Point
23°F
11 AM
37°F
0%
7mph
S
Sunny
Humidity
56%
Feels like
32°F
Dew Point
23°F
12 PM
41°F
0%
8mph
S
Mostly Sunny
Humidity
50%
Feels like
35°F
Dew Point
23°F
1 PM
42°F
0%
8mph
S
Mostly Sunny
Humidity
47%
Feels like
37°F
Dew Point
24°F
2 PM
43°F
0%
8mph
S
Mostly Sunny
Humidity
47%
Feels like
38°F
Dew Point
24°F
3 PM
42°F
0%
8mph
S
Mostly Sunny
Humidity
48%
Feels like
37°F
Dew Point
24°F
4 PM
40°F
0%
8mph
S
Mostly Sunny
Humidity
52%
Feels like
35°F
Dew Point
24°F
4:47 PM
5 PM
38°F
0%
8mph
S
Partly Cloudy
Humidity
55%
Feels like
32°F
Dew Point
24°F
6 PM
37°F
0%
7mph
S
Partly Cloudy
Humidity
56%
Feels like
31°F
Dew Point
23°F
7 PM
37°F
0%
8mph
S
Partly Cloudy
Humidity
56%
Feels like
30°F
Dew Point
22°F
8 PM
36°F
0%
8mph
S
Mostly Cloudy
Humidity
56%
Feels like
30°F
Dew Point
22°F
9 PM
36°F
0%
9mph
S
Mostly Cloudy
Humidity
55%
Feels like
30°F
Dew Point
22°F
10 PM
36°F
0%
9mph
S
Cloudy
Humidity
56%
Feels like
30°F
Dew Point
22°F
11 PM
36°F
0%
9mph
S
Cloudy
Humidity
56%
Feels like
29°F
Dew Point
22°F

Rain And Snow Totals Through Monday

Atmospheric River Takes Aim For Northern California

The plume of abundant moisture impacting the Northwest the last several days will focus more on Northern California later today into Monday bringing heavy rainfall and mountain snow.

NOAA, NCDC

White Christmas? What Are The Odds

Sunday's Weather Outlook

Sunday's Weather Outlook

Cold weather

During Extreme Cold: Watch for Frostbite!

Flu Update Valid For Week Ending December 13, 2025

Weekly Flu Update: Flu Spreading Hard Across U.S.

Watch vs. Warning

Flash Flood Watch and Warning Defined

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