NimbocastSouth Portland, ME Weather
Live radar, hourly and 7-day forecast, and National Weather Service alerts for South Portland, Cumberland County, Maine.
Updated Jul 29, 2026, 5:06 PM local time · Radar refreshes every 5 minutes
☁️
South Portland
64°F
Wind 18 mph
Humidity 94%
Cloud cover 100%
UV index 4
Alerts 0
Active alerts
✓
No active National Weather Service alerts for South Portland, ME.
South Portland weather radar
Light
Heavy
Next 24 hours
Now
☁️
64°F
21%
6 PM
🌫️
63°F
34%
7 PM
🌦️
62°F
38%
8 PM
🌦️
62°F
29%
9 PM
🌦️
62°F
28%
10 PM
🌫️
62°F
31%
11 PM
🌦️
62°F
38%
12 AM
☁️
63°F
58%
1 AM
🌧️
63°F
54%
2 AM
🌦️
63°F
54%
3 AM
🌧️
63°F
47%
4 AM
🌧️
63°F
57%
5 AM
🌧️
64°F
61%
6 AM
🌧️
64°F
56%
7 AM
🌧️
64°F
50%
8 AM
🌧️
64°F
47%
9 AM
🌧️
64°F
38%
10 AM
☁️
64°F
35%
11 AM
☁️
64°F
33%
12 PM
🌧️
64°F
43%
1 PM
☁️
64°F
44%
2 PM
🌦️
64°F
45%
3 PM
🌦️
65°F
40%
4 PM
🌦️
65°F
35%
7-day forecast
Today
Jul 29
🌦️
69°F
62°F
38%
Thu
Jul 30
🌧️
65°F
63°F
61%
Fri
Jul 31
🌦️
79°F
65°F
21%
Sat
Aug 1
🌦️
83°F
62°F
2%
Sun
Aug 2
☁️
81°F
66°F
25%
Mon
Aug 3
🌦️
76°F
64°F
29%
Tue
Aug 4
⛅
87°F
59°F
5%
Weather near South Portland
1 mi
Portland, ME4 mi
South Portland Gardens, ME7 mi
Westbrook, ME9 mi
West Scarborough, ME14 mi
Saco, ME15 mi
Biddeford, ME23 mi
Brunswick, ME30 mi
Sanford, ME
Alerts are relayed from the National Weather Service and may lag
the official source. In a life-threatening situation always follow
weather.gov and local emergency
broadcasts.