Hourly Weather Forecast - Grimes, IA

12 AM
10°F
10%
10mph
NW
Cloudy
Humidity
76%
Feels like
-4°F
Dew Point
4°F
1 AM
8°F
10%
9mph
NW
Cloudy
Humidity
78%
Feels like
-5°F
Dew Point
3°F
2 AM
8°F
10%
9mph
NW
Cloudy
Humidity
81%
Feels like
-5°F
Dew Point
3°F
3 AM
7°F
10%
8mph
NW
Cloudy
Humidity
83%
Feels like
-6°F
Dew Point
3°F
4 AM
6°F
10%
7mph
NW
Cloudy
Humidity
84%
Feels like
-6°F
Dew Point
3°F
5 AM
5°F
10%
7mph
NW
Cloudy
Humidity
85%
Feels like
-6°F
Dew Point
2°F
6 AM
5°F
10%
6mph
NW
Cloudy
Humidity
90%
Feels like
-7°F
Dew Point
2°F
7 AM
5°F
10%
6mph
NW
Cloudy
Humidity
91%
Feels like
-6°F
Dew Point
3°F
7:33 AM
8 AM
6°F
10%
6mph
NW
Cloudy
Humidity
90%
Feels like
-5°F
Dew Point
4°F
9 AM
8°F
10%
7mph
NW
Mostly Cloudy
Humidity
87%
Feels like
-3°F
Dew Point
5°F
10 AM
10°F
10%
7mph
NW
Mostly Cloudy
Humidity
82%
Feels like
-2°F
Dew Point
5°F
11 AM
11°F
20%
7mph
NW
Mostly Cloudy
Humidity
79%
Feels like
1°F
Dew Point
6°F
12 PM
13°F
20%
7mph
NW
Mostly Cloudy
Humidity
76%
Feels like
3°F
Dew Point
7°F

Snow Totals Through Tonight

Snow Impacts Great Lakes to New England

A low pressure system spurs a swath of snow from Wisconsin to New England today.

Monday's Weather Outlook

Monday's 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.

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Today's National Outlook

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