Portland, ME Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Portland, ME in one place.
Mostly sunny, with a high near 66. South wind 0 to 10 mph.
Local Weather Overview
This forecast page for Portland, ME is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jun 16, 2026 10:26 AM EDT.
The active forecast window currently covers Jun 17 to Jun 22, 2026 for Portland, ME.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 17 to Jun 22, 2026
- Latest sync
- Jun 16, 2026 10:26 AM EDT
- Forecast office
- GYX
- Source
- NOAA / NWS
Daily Outlook
This Week in Portland
Juneteenth looks like the warmest upcoming period in Portland at 73 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 56 degrees F.
The strongest winds are forecast for Thursday at about 5 to 25 mph SE.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 16, 2026 10:26 AM EDT
- Coverage
- 6 days
- Time zone
- America/New_York
- Forecast office
- GYX
- Radar station
- KGYX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 56. South wind 5 to 10 mph.
Rain showers likely before 2pm, then showers and thunderstorms. Mostly cloudy, with a high near 65. Southeast wind 5 to 25 mph. Chance of precipitation is 90%.
Showers and thunderstorms before 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 80%.
Mostly sunny, with a high near 73.
Mostly clear, with a low around 59.
A slight chance of rain showers after 2pm. Mostly sunny, with a high near 68.
A slight chance of rain showers before 7pm. Partly cloudy, with a low around 58.
A slight chance of rain showers after noon. Mostly sunny, with a high near 68.
A slight chance of rain showers before 8pm. Partly cloudy, with a low around 58.
A chance of rain showers after 2pm. Mostly sunny, with a high near 66. Chance of precipitation is 30%.
A chance of rain showers. Mostly cloudy, with a low around 57.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Jun 17
|
Mostly Sunny
|
66°F |
0 to 10 mph
S
|
|
Wednesday Night
Jun 17
|
Partly Cloudy
|
56°F |
5 to 10 mph
S
|
|
Thursday
Jun 18
|
Showers And Thunderstorms
|
65°F |
5 to 25 mph
SE
|
|
Thursday Night
Jun 18
|
Showers And Thunderstorms
|
59°F |
10 to 25 mph
SW
|
|
Juneteenth
Jun 19
|
Mostly Sunny
|
73°F |
15 mph
SW
|
|
Friday Night
Jun 19
|
Mostly Clear
|
59°F |
15 mph
W
|
|
Saturday
Jun 20
|
Mostly Sunny then Slight Chance Rain Showers
|
68°F |
15 mph
W
|
|
Saturday Night
Jun 20
|
Slight Chance Rain Showers then Partly Cloudy
|
58°F |
10 to 15 mph
W
|
|
Sunday
Jun 21
|
Mostly Sunny then Slight Chance Rain Showers
|
68°F |
10 mph
W
|
|
Sunday Night
Jun 21
|
Slight Chance Rain Showers then Partly Cloudy
|
58°F |
5 to 10 mph
W
|
|
Monday
Jun 22
|
Mostly Sunny then Chance Rain Showers
|
66°F |
5 to 10 mph
SW
|
|
Monday Night
Jun 22
|
Chance Rain Showers
|
57°F |
5 to 10 mph
E
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Portland.
