Hourly Weather Forecast - Mason City Junction, IA

12 AM
20°F
10%
12mph
NW
Mostly Clear
Humidity
76%
Feels like
8°F
Dew Point
14°F
1 AM
19°F
10%
11mph
NW
Mostly Clear
Humidity
72%
Feels like
7°F
Dew Point
12°F
2 AM
18°F
10%
10mph
NW
Mostly Clear
Humidity
72%
Feels like
7°F
Dew Point
11°F
3 AM
18°F
10%
9mph
NW
Mostly Clear
Humidity
72%
Feels like
7°F
Dew Point
10°F
4 AM
18°F
10%
9mph
NW
Mostly Clear
Humidity
73%
Feels like
7°F
Dew Point
10°F
5 AM
18°F
10%
8mph
NW
Mostly Clear
Humidity
72%
Feels like
8°F
Dew Point
10°F
6 AM
19°F
10%
7mph
NW
Partly Cloudy
Humidity
70%
Feels like
10°F
Dew Point
11°F
7 AM
20°F
20%
6mph
NW
Partly Cloudy
Humidity
78%
Feels like
11°F
Dew Point
14°F
7:41 AM
8 AM
21°F
20%
6mph
WNW
Mostly Cloudy
Humidity
74%
Feels like
13°F
Dew Point
14°F
9 AM
22°F
20%
6mph
WNW
Cloudy
Humidity
71%
Feels like
14°F
Dew Point
14°F
10 AM
23°F
20%
7mph
W
Cloudy
Humidity
68%
Feels like
15°F
Dew Point
15°F
11 AM
24°F
20%
8mph
W
Cloudy
Humidity
68%
Feels like
16°F
Dew Point
15°F
12 PM
25°F
20%
8mph
W
Cloudy
Humidity
68%
Feels like
16°F
Dew Point
16°F
1 PM
26°F
10%
9mph
SW
Cloudy
Humidity
69%
Feels like
16°F
Dew Point
17°F
2 PM
25°F
10%
9mph
SSE
Cloudy
Humidity
71%
Feels like
16°F
Dew Point
17°F
3 PM
25°F
10%
10mph
SSE
Cloudy
Humidity
73%
Feels like
15°F
Dew Point
18°F
4 PM
24°F
10%
10mph
SE
Mostly Cloudy
Humidity
74%
Feels like
15°F
Dew Point
17°F
4:40 PM
5 PM
24°F
10%
9mph
SSE
Partly Cloudy
Humidity
73%
Feels like
14°F
Dew Point
17°F
6 PM
24°F
30%
9mph
SSE
30% Chance of Snow
Humidity
74%
Feels like
14°F
Dew Point
17°F
7 PM
24°F
30%
9mph
SSE
30 % Chance of Heavy Snow
Humidity
75%
Feels like
14°F
Dew Point
17°F
8 PM
24°F
30%
10mph
SSE
30 % Chance of Heavy Snow
Humidity
77%
Feels like
13°F
Dew Point
18°F
9 PM
24°F
30%
11mph
SSE
30 % Chance of Heavy Snow
Humidity
79%
Feels like
14°F
Dew Point
18°F

Rainfall Totals Through Wednesday A.M.

Heavy Rain Returns to Deluge Pacific Northwest

Another atmospheric river will hit the Pacific Northwest with heavy rain and high winds.

Tuesday's Weather Outlook

Tuesday'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 person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

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

Cold Air Damming - Cause And Effects

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