Portland, ME 14-Day Forecast
Maine, United States 🇺🇸
76°
Sunny right now
Today: high 82°, low 60°
Updated 1 min ago
Portland weather for the next 14 days
Saturday, July 18
Sunny High 76° Low 59°Precipitation
36%
· 0.02 in
Max wind
21 mph
Humidity
62%
UV index
4 - Moderate
Sunrise / sunset
05:16 AM / 08:18 PM
Sunday, July 19
Sunny High 77° Low 62°Precipitation
37%
· 0.04 in
Max wind
15 mph
Humidity
63%
UV index
7 - High
Sunrise / sunset
05:17 AM / 08:17 PM
Monday, July 20
Sunny High 73° Low 58°Precipitation
3%
· 0.0 in
Max wind
14 mph
Humidity
58%
UV index
8 - High
Sunrise / sunset
05:18 AM / 08:16 PM
Tuesday, July 21
Sunny High 69° Low 60°Precipitation
65%
· 0.11 in
Max wind
15 mph
Humidity
79%
UV index
6 - High
Sunrise / sunset
05:19 AM / 08:15 PM
Wednesday, July 22
Light rain shower High 74° Low 64°Precipitation
80%
· 0.27 in
Max wind
14 mph
Humidity
84%
UV index
6 - High
Sunrise / sunset
05:19 AM / 08:15 PM
Thursday, July 23
Sunny High 72° Low 60°Precipitation
7%
· 0.0 in
Max wind
11 mph
Humidity
64%
UV index
6 - High
Sunrise / sunset
05:20 AM / 08:14 PM
Friday, July 24
Sunny High 71° Low 59°Precipitation
6%
· 0.0 in
Max wind
12 mph
Humidity
70%
UV index
6 - High
Sunrise / sunset
05:21 AM / 08:13 PM
Saturday, July 25
Partly Cloudy High 74° Low 61°Precipitation
49%
· 0.03 in
Max wind
9 mph
Humidity
80%
UV index
5 - Moderate
Sunrise / sunset
05:22 AM / 08:12 PM
Sunday, July 26
Sunny High 71° Low 55°Precipitation
5%
· 0.0 in
Max wind
9 mph
Humidity
66%
UV index
6 - High
Sunrise / sunset
05:23 AM / 08:11 PM
Monday, July 27
Sunny High 70° Low 56°Precipitation
5%
· 0.0 in
Max wind
8 mph
Humidity
63%
UV index
6 - High
Sunrise / sunset
05:25 AM / 08:10 PM
Tuesday, July 28
Light drizzle High 61° Low 58°Precipitation
83%
· 0.22 in
Max wind
17 mph
Humidity
85%
UV index
5 - Moderate
Sunrise / sunset
05:26 AM / 08:09 PM
Wednesday, July 29
Patchy rain nearby High 69° Low 61°Precipitation
80%
· 0.11 in
Max wind
8 mph
Humidity
87%
UV index
5 - Moderate
Sunrise / sunset
05:27 AM / 08:07 PM
Thursday, July 30
Partly Cloudy High 76° Low 62°Precipitation
11%
· 0.0 in
Max wind
19 mph
Humidity
76%
UV index
6 - High
Sunrise / sunset
05:28 AM / 08:06 PM
Portland 14-day outlook: the story
The warmest day of Portland's 14-day outlook is Friday, July 17 with a high near 82°F (28°C); the coolest night comes Sunday, July 26, dipping to 55°F (13°C). The trend points cooler: week two runs about 5°F below week one. Highs over the next two weeks average 75°F (24°C), about 3°F (2°C) below the typical July high of 78°F (26°C).
Precipitation is most likely on Tuesday 21, Wednesday 22, Tuesday 28, Wednesday 29; the wettest day looks like Wednesday, July 22 with about 0.27 in (6.8 mm) expected. For the weekend, expect Saturday 76°F (24°C) and sunny / Sunday 77°F (25°C) and sunny.
For typical conditions month by month, see the Portland climate & average temperatures guide.
Portland forecast questions
Will it rain in Portland this week?
The forecast currently shows meaningful precipitation chances on 4 of the next 14 days, peaking around Wednesday, July 22.
What will be the warmest day in Portland over the next 14 days?
Friday, July 17, with a forecast high near 82°F (28°C).
How accurate is a 14-day forecast for Portland?
Days 1-3 are highly reliable, days 4-7 capture the overall pattern well, and days 8-14 indicate trends rather than exact figures - check back as the date approaches; this page refreshes throughout the day.
Average temperatures in Portland by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 33° | 19° | 10 | 4.1 in | 5.9 h/day | 68% |
| February | 35° | 18° | 9 | 3.2 in | 6.9 h/day | 69% |
| March | 42° | 26° | 11 | 3.8 in | 8.0 h/day | 67% |
| April | 51° | 36° | 11 | 4.5 in | 8.2 h/day | 70% |
| May | 63° | 47° | 9 | 2.7 in | 10.1 h/day | 72% |
| June | 72° | 57° | 11 | 3.8 in | 11.1 h/day | 76% |
| July | 78° | 64° | 10 | 3.8 in | 11.3 h/day | 77% |
| August | 77° | 63° | 11 | 3.6 in | 10.8 h/day | 78% |
| September | 71° | 57° | 8 | 3.4 in | 9.4 h/day | 78% |
| October | 60° | 47° | 9 | 4.5 in | 7.1 h/day | 77% |
| November | 47° | 35° | 9 | 3.8 in | 6.5 h/day | 71% |
| December | 38° | 26° | 11 | 5.0 in | 5.7 h/day | 72% |
14-day forecasts nearby