Hourly Weather Forecast - Mason City, IA

12 AM
29°F
10%
17mph
S
Cloudy
Humidity
70%
Feels like
17°F
Dew Point
20°F
1 AM
29°F
10%
17mph
S
Cloudy
Humidity
71%
Feels like
17°F
Dew Point
21°F
2 AM
29°F
10%
16mph
S
Cloudy
Humidity
72%
Feels like
17°F
Dew Point
21°F
3 AM
29°F
10%
16mph
S
Mostly Cloudy
Humidity
74%
Feels like
18°F
Dew Point
22°F
4 AM
29°F
10%
15mph
S
Partly Cloudy
Humidity
76%
Feels like
19°F
Dew Point
23°F
5 AM
30°F
10%
14mph
S
Partly Cloudy
Humidity
77%
Feels like
20°F
Dew Point
24°F
6 AM
31°F
10%
13mph
SSW
Partly Cloudy
Humidity
79%
Feels like
21°F
Dew Point
25°F
7 AM
32°F
10%
13mph
SSW
Mostly Clear
Humidity
77%
Feels like
22°F
Dew Point
25°F
7:40 AM
8 AM
33°F
10%
12mph
SW
Sunny
Humidity
76%
Feels like
23°F
Dew Point
26°F
9 AM
34°F
10%
12mph
WSW
Sunny
Humidity
75%
Feels like
25°F
Dew Point
27°F
10 AM
35°F
10%
12mph
WSW
Sunny
Humidity
74%
Feels like
27°F
Dew Point
28°F
11 AM
36°F
10%
13mph
W
Sunny
Humidity
73%
Feels like
28°F
Dew Point
28°F
12 PM
37°F
10%
13mph
WNW
Mostly Sunny
Humidity
74%
Feels like
28°F
Dew Point
29°F
1 PM
36°F
0%
14mph
WNW
Mostly Sunny
Humidity
73%
Feels like
27°F
Dew Point
28°F
2 PM
35°F
0%
14mph
NW
Mostly Sunny
Humidity
76%
Feels like
26°F
Dew Point
28°F
3 PM
34°F
0%
14mph
NW
Partly Cloudy
Humidity
78%
Feels like
24°F
Dew Point
28°F
4 PM
32°F
10%
14mph
NW
Partly Cloudy
Humidity
81%
Feels like
22°F
Dew Point
27°F
4:40 PM
5 PM
31°F
10%
14mph
NW
Partly Cloudy
Humidity
83%
Feels like
21°F
Dew Point
26°F
6 PM
30°F
10%
14mph
NW
Partly Cloudy
Humidity
85%
Feels like
19°F
Dew Point
26°F
7 PM
29°F
10%
14mph
NW
Mostly Clear
Humidity
86%
Feels like
18°F
Dew Point
26°F
8 PM
29°F
10%
14mph
NW
Mostly Clear
Humidity
87%
Feels like
17°F
Dew Point
25°F

Wind chill temperatures Monday A.M.

Cold Weather Chills the Nation Down to the Gulf

Extreme cold paired with their wind chill values will shiver much of the nation.

Snowfall forecast through Monday evening.

Mid-Atlantic, Great Lakes Snow Piles Up

Monday's Weather Outlook

Monday's 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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