Hourly Weather Forecast - South Portland, ME

12 AM
33°F
10%
10mph
SW
Cloudy
Humidity
91%
Feels like
26°F
Dew Point
31°F
1 AM
33°F
10%
10mph
SW
Cloudy
Humidity
91%
Feels like
25°F
Dew Point
31°F
2 AM
33°F
10%
9mph
SW
Cloudy
Humidity
90%
Feels like
26°F
Dew Point
31°F
3 AM
33°F
10%
9mph
SW
Mostly Cloudy
Humidity
90%
Feels like
25°F
Dew Point
30°F
4 AM
33°F
10%
9mph
SW
Partly Cloudy
Humidity
89%
Feels like
25°F
Dew Point
30°F
5 AM
33°F
10%
10mph
SW
Mostly Cloudy
Humidity
88%
Feels like
25°F
Dew Point
29°F
6 AM
33°F
10%
10mph
WSW
Mostly Cloudy
Humidity
85%
Feels like
25°F
Dew Point
29°F
7 AM
34°F
10%
10mph
WSW
Mostly Cloudy
Humidity
81%
Feels like
26°F
Dew Point
28°F
7:04 AM
8 AM
35°F
0%
12mph
WSW
Mostly Cloudy
Humidity
75%
Feels like
26°F
Dew Point
27°F
9 AM
35°F
0%
13mph
W
Partly Cloudy
Humidity
68%
Feels like
27°F
Dew Point
26°F
10 AM
36°F
10%
14mph
W
Partly Cloudy
Humidity
62%
Feels like
27°F
Dew Point
24°F
11 AM
36°F
10%
14mph
W
Partly Cloudy
Humidity
59%
Feels like
27°F
Dew Point
23°F
12 PM
36°F
10%
15mph
W
Partly Cloudy
Humidity
57%
Feels like
26°F
Dew Point
22°F
1 PM
35°F
10%
16mph
W
Partly Cloudy
Humidity
56%
Feels like
25°F
Dew Point
21°F
2 PM
33°F
10%
16mph
W
Mostly Sunny
Humidity
57%
Feels like
23°F
Dew Point
20°F
3 PM
32°F
10%
17mph
W
Partly Cloudy
Humidity
57%
Feels like
21°F
Dew Point
18°F
4 PM
30°F
10%
17mph
W
Partly Cloudy
Humidity
57%
Feels like
18°F
Dew Point
17°F
4:04 PM
5 PM
29°F
10%
17mph
W
Partly Cloudy
Humidity
58%
Feels like
17°F
Dew Point
16°F
6 PM
27°F
10%
17mph
W
Partly Cloudy
Humidity
60%
Feels like
15°F
Dew Point
15°F
7 PM
26°F
10%
17mph
W
Mostly Cloudy
Humidity
60%
Feels like
13°F
Dew Point
14°F
8 PM
24°F
10%
17mph
W
Mostly Cloudy
Humidity
61%
Feels like
11°F
Dew Point
13°F
9 PM
23°F
10%
16mph
W
Cloudy
Humidity
60%
Feels like
10°F
Dew Point
11°F
10 PM
22°F
10%
17mph
W
Cloudy
Humidity
60%
Feels like
8°F
Dew Point
10°F
11 PM
21°F
10%
17mph
W
Cloudy
Humidity
61%
Feels like
7°F
Dew Point
10°F

Snow and ice forecast through Thursday A.M.

Snow Barrels Across the Northern U.S.

Low pressure will produce a swath of snow from Minnesota to Maine into Thursday.

Rainfall Forecast for Northwest through Thursday

Heavy Rain, Flooding Soaks The Northwest

Wednesday's Weather Outlook

Wednesday's Weather Outlook

Weekly Drought Map for December 4, 2025

Active Week of Weather Leads to Mixed Drought Results

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

Cold Air Damming - Cause And Effects

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide