Hourly Weather Forecast - Mason City Junction, IA

2 AM
9°F
0%
20mph
SSW
Partly Cloudy
Humidity
82%
Feels like
-10°F
Dew Point
5°F
3 AM
10°F
0%
19mph
SSW
Partly Cloudy
Humidity
83%
Feels like
-8°F
Dew Point
6°F
4 AM
11°F
0%
18mph
SSW
Partly Cloudy
Humidity
84%
Feels like
-6°F
Dew Point
8°F
5 AM
13°F
0%
17mph
SSW
Partly Cloudy
Humidity
84%
Feels like
-4°F
Dew Point
9°F
6 AM
14°F
0%
16mph
SW
Partly Cloudy
Humidity
85%
Feels like
-2°F
Dew Point
10°F
7 AM
16°F
0%
15mph
SW
Partly Cloudy
Humidity
84%
Feels like
1°F
Dew Point
12°F
7:37 AM
8 AM
17°F
0%
13mph
SW
Partly Cloudy
Humidity
83%
Feels like
4°F
Dew Point
13°F
9 AM
19°F
0%
12mph
SW
Partly Cloudy
Humidity
82%
Feels like
7°F
Dew Point
15°F
10 AM
21°F
0%
12mph
WSW
Partly Cloudy
Humidity
82%
Feels like
10°F
Dew Point
17°F
11 AM
24°F
0%
11mph
WSW
Partly Cloudy
Humidity
81%
Feels like
13°F
Dew Point
19°F
12 PM
25°F
0%
11mph
W
Partly Cloudy
Humidity
81%
Feels like
15°F
Dew Point
20°F
1 PM
26°F
0%
10mph
W
Partly Cloudy
Humidity
81%
Feels like
17°F
Dew Point
21°F
2 PM
27°F
0%
9mph
W
Partly Cloudy
Humidity
82%
Feels like
18°F
Dew Point
22°F
3 PM
26°F
0%
8mph
WNW
Partly Cloudy
Humidity
84%
Feels like
18°F
Dew Point
22°F
4 PM
25°F
0%
7mph
WNW
Partly Cloudy
Humidity
88%
Feels like
17°F
Dew Point
22°F
4:38 PM
5 PM
24°F
0%
6mph
WNW
Partly Cloudy
Humidity
89%
Feels like
17°F
Dew Point
21°F
6 PM
23°F
0%
5mph
WNW
Partly Cloudy
Humidity
90%
Feels like
16°F
Dew Point
20°F
7 PM
22°F
0%
5mph
WNW
Mostly Clear
Humidity
90%
Feels like
15°F
Dew Point
19°F
8 PM
20°F
0%
5mph
W
Hazy
Humidity
92%
Feels like
13°F
Dew Point
18°F
9 PM
19°F
0%
5mph
W
Hazy
Humidity
92%
Feels like
11°F
Dew Point
17°F
10 PM
19°F
0%
5mph
WSW
Mostly Clear
Humidity
90%
Feels like
11°F
Dew Point
16°F
11 PM
19°F
0%
6mph
SW
Mostly Clear
Humidity
88%
Feels like
11°F
Dew Point
16°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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