Hourly Weather Forecast - Grinnell, IA

12 AM
7°F
0%
10mph
S
Clear
Humidity
74%
Feels like
-8°F
Dew Point
0°F
1 AM
8°F
0%
11mph
SSW
Clear
Humidity
72%
Feels like
-7°F
Dew Point
1°F
2 AM
10°F
0%
12mph
SSW
Clear
Humidity
71%
Feels like
-5°F
Dew Point
2°F
3 AM
11°F
0%
12mph
SSW
Clear
Humidity
70%
Feels like
-4°F
Dew Point
3°F
4 AM
13°F
0%
12mph
SSW
Clear
Humidity
69%
Feels like
-2°F
Dew Point
4°F
5 AM
14°F
0%
12mph
SSW
Mostly Clear
Humidity
69%
Feels like
0°F
Dew Point
6°F
6 AM
15°F
0%
12mph
SW
Mostly Clear
Humidity
69%
Feels like
2°F
Dew Point
7°F
7 AM
17°F
0%
11mph
SW
Mostly Clear
Humidity
71%
Feels like
4°F
Dew Point
9°F
7:30 AM
8 AM
18°F
0%
10mph
SW
Mostly Sunny
Humidity
73%
Feels like
6°F
Dew Point
11°F
9 AM
20°F
0%
10mph
SW
Mostly Sunny
Humidity
75%
Feels like
9°F
Dew Point
13°F
10 AM
22°F
0%
9mph
WSW
Mostly Sunny
Humidity
75%
Feels like
12°F
Dew Point
16°F
11 AM
24°F
0%
9mph
WSW
Mostly Sunny
Humidity
77%
Feels like
15°F
Dew Point
18°F
12 PM
26°F
0%
8mph
WSW
Mostly Sunny
Humidity
78%
Feels like
18°F
Dew Point
20°F
1 PM
27°F
0%
7mph
WSW
Mostly Sunny
Humidity
81%
Feels like
20°F
Dew Point
22°F
2 PM
28°F
0%
6mph
WSW
Mostly Sunny
Humidity
83%
Feels like
21°F
Dew Point
23°F
3 PM
28°F
0%
5mph
W
Partly Cloudy
Humidity
86%
Feels like
22°F
Dew Point
24°F
4 PM
27°F
0%
4mph
W
Mostly Sunny
Humidity
87%
Feels like
22°F
Dew Point
24°F
4:41 PM
5 PM
26°F
0%
3mph
W
Mostly Clear
Humidity
89%
Feels like
26°F
Dew Point
23°F
6 PM
24°F
0%
2mph
W
Mostly Clear
Humidity
87%
Feels like
24°F
Dew Point
21°F
7 PM
23°F
0%
2mph
W
Mostly Clear
Humidity
90%
Feels like
23°F
Dew Point
20°F
8 PM
21°F
0%
2mph
W
Clear
Humidity
89%
Feels like
21°F
Dew Point
19°F
9 PM
20°F
0%
2mph
W
Hazy
Humidity
91%
Feels like
20°F
Dew Point
18°F
10 PM
19°F
0%
1mph
W
Hazy
Humidity
92%
Feels like
19°F
Dew Point
17°F
11 PM
18°F
0%
1mph
W
Hazy
Humidity
93%
Feels like
18°F
Dew Point
16°F

Wind chill temperatures Monday A.M.

Cold Weather Chills the Nation Down to the Gulf

In the path of a weak low-pressure system that brings snow to the Midwest and Northeast, extreme cold weather and brutally cold wind chill values will bring a bitter cold to much of the Nation.

Snowfall forecast through Sunday evening.

Snow Spreads Across the Ohio Valley into the Mid-Atlantic

Weekend Weather Outlook

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

Cold Air Damming - Cause And Effects

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