Hourly Weather Forecast - Grinnell, IA

12 AM
5°F
0%
2mph
NE
Cloudy
Humidity
91%
Feels like
5°F
Dew Point
3°F
1 AM
5°F
0%
2mph
ENE
Cloudy
Humidity
85%
Feels like
5°F
Dew Point
2°F
2 AM
5°F
0%
2mph
E
Mostly Cloudy
Humidity
85%
Feels like
5°F
Dew Point
2°F
3 AM
5°F
0%
2mph
E
Mostly Cloudy
Humidity
86%
Feels like
5°F
Dew Point
2°F
4 AM
6°F
0%
2mph
ESE
Mostly Cloudy
Humidity
88%
Feels like
6°F
Dew Point
3°F
5 AM
6°F
0%
2mph
SE
Cloudy
Humidity
90%
Feels like
6°F
Dew Point
4°F
6 AM
7°F
0%
3mph
SSE
Cloudy
Humidity
90%
Feels like
7°F
Dew Point
5°F
7 AM
9°F
0%
3mph
SSE
Cloudy
Humidity
88%
Feels like
2°F
Dew Point
6°F
7:25 AM
8 AM
10°F
0%
4mph
SSE
Cloudy
Humidity
89%
Feels like
2°F
Dew Point
7°F
9 AM
11°F
0%
5mph
SSE
Cloudy
Humidity
89%
Feels like
3°F
Dew Point
9°F
10 AM
13°F
0%
6mph
S
Cloudy
Humidity
87%
Feels like
4°F
Dew Point
10°F
11 AM
15°F
0%
6mph
S
Cloudy
Humidity
90%
Feels like
5°F
Dew Point
12°F
12 PM
16°F
0%
7mph
S
Mostly Cloudy
Humidity
90%
Feels like
7°F
Dew Point
14°F
1 PM
18°F
0%
7mph
S
Mostly Cloudy
Humidity
91%
Feels like
8°F
Dew Point
15°F
2 PM
18°F
0%
8mph
S
Mostly Cloudy
Humidity
92%
Feels like
9°F
Dew Point
17°F
3 PM
19°F
0%
8mph
S
Mostly Cloudy
Humidity
94%
Feels like
9°F
Dew Point
17°F
4 PM
20°F
0%
8mph
S
Mostly Cloudy
Humidity
93%
Feels like
10°F
Dew Point
18°F
4:40 PM
5 PM
21°F
0%
9mph
S
Partly Cloudy
Humidity
91%
Feels like
11°F
Dew Point
19°F
6 PM
22°F
10%
9mph
S
Partly Cloudy
Humidity
91%
Feels like
12°F
Dew Point
19°F
7 PM
22°F
10%
10mph
S
Partly Cloudy
Humidity
93%
Feels like
12°F
Dew Point
21°F
8 PM
23°F
10%
10mph
S
Partly Cloudy
Humidity
93%
Feels like
13°F
Dew Point
21°F
9 PM
24°F
10%
11mph
SSW
Partly Cloudy
Humidity
93%
Feels like
13°F
Dew Point
22°F
10 PM
25°F
10%
10mph
SSW
Partly Cloudy
Humidity
91%
Feels like
15°F
Dew Point
23°F
11 PM
27°F
10%
11mph
SSW
Hazy
Humidity
92%
Feels like
17°F
Dew Point
25°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)

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Image courtesy of PeakPX.

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