Hourly Weather Forecast - Grinnell, IA

12 AM
15°F
10%
12mph
NW
Partly Cloudy
Humidity
65%
Feels like
1°F
Dew Point
5°F
1 AM
15°F
10%
12mph
NW
Partly Cloudy
Humidity
64%
Feels like
1°F
Dew Point
5°F
2 AM
14°F
0%
11mph
NW
Mostly Clear
Humidity
62%
Feels like
1°F
Dew Point
4°F
3 AM
14°F
0%
10mph
NW
Clear
Humidity
62%
Feels like
1°F
Dew Point
3°F
4 AM
14°F
0%
9mph
NW
Clear
Humidity
61%
Feels like
2°F
Dew Point
3°F
5 AM
13°F
0%
9mph
NW
Clear
Humidity
61%
Feels like
1°F
Dew Point
2°F
6 AM
12°F
10%
8mph
WNW
Clear
Humidity
61%
Feels like
1°F
Dew Point
2°F
7 AM
12°F
10%
7mph
W
Mostly Clear
Humidity
62%
Feels like
1°F
Dew Point
2°F
7:33 AM
8 AM
13°F
10%
7mph
SSW
Mostly Sunny
Humidity
63%
Feels like
2°F
Dew Point
3°F
9 AM
15°F
10%
8mph
S
Partly Cloudy
Humidity
61%
Feels like
4°F
Dew Point
4°F
10 AM
17°F
10%
8mph
SSE
Partly Cloudy
Humidity
59%
Feels like
6°F
Dew Point
5°F
11 AM
19°F
10%
8mph
SSE
Partly Cloudy
Humidity
58%
Feels like
8°F
Dew Point
6°F
12 PM
20°F
10%
9mph
SSE
Mostly Cloudy
Humidity
56%
Feels like
10°F
Dew Point
7°F
1 PM
22°F
10%
9mph
SSE
Mostly Cloudy
Humidity
57%
Feels like
12°F
Dew Point
9°F
2 PM
23°F
10%
10mph
SSE
Partly Cloudy
Humidity
58%
Feels like
12°F
Dew Point
10°F
3 PM
23°F
10%
11mph
SSE
Partly Cloudy
Humidity
60%
Feels like
12°F
Dew Point
11°F
4 PM
23°F
10%
11mph
SSE
Partly Cloudy
Humidity
62%
Feels like
12°F
Dew Point
12°F
4:42 PM
5 PM
23°F
0%
10mph
SSE
Partly Cloudy
Humidity
64%
Feels like
13°F
Dew Point
13°F
6 PM
23°F
0%
10mph
SSE
Partly Cloudy
Humidity
64%
Feels like
13°F
Dew Point
13°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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