Hourly Weather Forecast - South Portland, ME

12 AM
16°F
10%
11mph
NW
Mostly Clear
Humidity
66%
Feels like
3°F
Dew Point
7°F
1 AM
15°F
10%
11mph
NW
Mostly Clear
Humidity
66%
Feels like
2°F
Dew Point
6°F
2 AM
15°F
10%
11mph
NW
Mostly Clear
Humidity
65%
Feels like
1°F
Dew Point
5°F
3 AM
14°F
10%
12mph
NW
Clear
Humidity
65%
Feels like
0°F
Dew Point
4°F
4 AM
13°F
10%
12mph
NW
Clear
Humidity
64%
Feels like
0°F
Dew Point
4°F
5 AM
13°F
0%
12mph
NW
Clear
Humidity
63%
Feels like
-1°F
Dew Point
3°F
6 AM
13°F
0%
12mph
NW
Clear
Humidity
62%
Feels like
-1°F
Dew Point
2°F
7 AM
13°F
0%
11mph
NW
Clear
Humidity
60%
Feels like
0°F
Dew Point
2°F
7:07 AM
8 AM
15°F
0%
11mph
NW
Sunny
Humidity
58%
Feels like
1°F
Dew Point
2°F
9 AM
16°F
0%
11mph
NW
Sunny
Humidity
55%
Feels like
3°F
Dew Point
3°F
10 AM
17°F
0%
11mph
NW
Sunny
Humidity
52%
Feels like
5°F
Dew Point
3°F
11 AM
19°F
0%
11mph
NW
Sunny
Humidity
51%
Feels like
6°F
Dew Point
4°F
12 PM
20°F
0%
11mph
NW
Sunny
Humidity
50%
Feels like
8°F
Dew Point
4°F
1 PM
21°F
0%
11mph
NW
Mostly Sunny
Humidity
51%
Feels like
9°F
Dew Point
5°F
2 PM
21°F
0%
10mph
WNW
Mostly Sunny
Humidity
51%
Feels like
10°F
Dew Point
6°F
3 PM
21°F
0%
10mph
WNW
Partly Cloudy
Humidity
52%
Feels like
10°F
Dew Point
6°F
4 PM
21°F
0%
9mph
WNW
Partly Cloudy
Humidity
55%
Feels like
10°F
Dew Point
7°F
4:04 PM
5 PM
20°F
0%
9mph
WNW
Mostly Cloudy
Humidity
58%
Feels like
10°F
Dew Point
8°F
6 PM
20°F
0%
8mph
WNW
Cloudy
Humidity
62%
Feels like
10°F
Dew Point
9°F
7 PM
19°F
0%
8mph
W
Cloudy
Humidity
63%
Feels like
9°F
Dew Point
9°F
8 PM
21°F
10%
8mph
W
Cloudy
Humidity
62%
Feels like
12°F
Dew Point
10°F
9 PM
21°F
10%
7mph
W
Cloudy
Humidity
63%
Feels like
12°F
Dew Point
10°F
10 PM
20°F
10%
7mph
W
Cloudy
Humidity
64%
Feels like
12°F
Dew Point
10°F
11 PM
20°F
10%
6mph
WSW
Cloudy
Humidity
64%
Feels like
12°F
Dew Point
10°F

Snow and ice forecast through Friday A.M.

Multiple Snow Threats Across the Northern U.S.

Multiple systems will bring snow across the Northern U.S. through the end of the week.

Rainfall Forecast for Northwest through Friday A.M.

Unrelenting Rains Soak the Northwest

Today's Weather Outlook

Today'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