| National Weather Service Forecast for:
Portland ME Issued by: National Weather Service Gray/Portland, ME |
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| Updated: 2:38 pm EDT Jun 29, 2026 | ||||||||||||||||||
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| Overnight |
Partly cloudy, with a low around 60. Southwest wind around 5 mph. |
| Tuesday |
Partly sunny, with a high near 79. Light southwest wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph. |
| Tuesday Night |
Scattered showers and thunderstorms. Cloudy, then gradually becoming partly cloudy, with a low around 64. Southwest wind 5 to 10 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. |
| Wednesday |
Increasing clouds, with a high near 89. Heat index values as high as 97. Southwest wind 5 to 10 mph. |
| Wednesday Night |
Partly cloudy, with a low around 70. Southwest wind around 5 mph. |
| Thursday |
Sunny and hot, with a high near 90. |
| Thursday Night |
Mostly clear, with a low around 73. |
| Friday |
Mostly sunny and hot, with a high near 96. |
| Friday Night |
Partly cloudy, with a low around 69. |
| Independence Day |
A 40 percent chance of showers after 1pm. Partly sunny and hot, with a high near 90. |
| Saturday Night |
Partly cloudy, with a low around 66. |
| Sunday |
Mostly sunny, with a high near 85. |
| Sunday Night |
Partly cloudy, with a low around 63. |
| Monday |
Partly sunny, with a high near 81. |
Forecast from NOAA-NWS for Portland ME.
