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Town of Southport, MESouthport, ME Weather Forecast
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Southport Weather Forecast
| TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY |
 |  |  | | |  |  | |  |  | | |
| Partly Cloudy | Mostly Cloudy | Patchy Fog | Patchy Fog | Partly Cloudy | Mostly Sunny | Mostly Clear | Partly Sunny | Chance of Showers | Chance of Showers | Chance of Showers | Chance of Showers |
| Lo: 60°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 55°FLo: 13°C | Hi: 81°FHi: 27°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C |
| POP: 40% | POP: 50% | POP: 50% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 500 PM EDT Tue Aug 18 2026 
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Southport Forecast Discussion
Issued: 219 AM EDT Wed Aug 19 2026
Key Messages
1. Early morning fog today. A few showers and an isolated thunderstorm possible by early this evening. Thursday should be fair as well, but there is some minor forecast uncertainty.
2. The next chance for rain on a widespread basis arrives for the second half of the weekend.
Discussion
... KEY MESSAGE 1 DESCRIPTION...
After areas of early morning low clouds and fog we should see increasing sunshine, especially on the coastal plain and across southern NH. As ...