Marine Weather Net

Southwest Harbor ME Weather Forecast




Southwest Harbor, Maine

 Lat: 44.28N, Lon: 68.33W

Current Conditions Updated: 556 AM EDT SAT JUL 25 2026

Clear


Temp: 53°F
  • Humidity:
  • 100%
  • Winds:
  • N/A
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.18 in.
  • Dewpoint:
  • 53°F
  • Heat index:
  • 53°F

  • Sunrise:
  • 5:11 AM EDT
  • Sunset:
  • 8:04 PM EDT
  • Moonrise:
  • 5:49 PM EDT
  • Moonset:
  • 1:06 AM EDT

TODAY

SUNNY

Hi: 79°F
Lo: 51°F

SUNDAY

MOSTLY SUNNY
Hi: 79°F
Lo: 55°F

MONDAY

MOSTLY SUNNY
Hi: 75°F
Lo: 55°F

TUESDAY

PARTLY SUNNY
Hi: 75°F
Lo: 57°F
Weather Forecast In Detail:
Forecast Issued: 544 AM EDT Sat Jul 25 2026

BEACH HAZARDS STATEMENT IN EFFECT THROUGH THIS EVENING
Today...Sunny. Highs in the upper 70s. South winds 5 to 10 mph.
Tonight...Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 50s. South winds around 5 mph with gusts up to 15 mph in the evening, becoming light and variable.
Sunday...Mostly sunny. Highs in the upper 70s. Southeast winds around 5 mph.
Sunday Night...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 50s. South winds around 5 mph, becoming northwest after midnight.
Monday...Mostly sunny. Highs in the mid 70s. East winds around 5 mph, becoming south in the afternoon.
Monday Night...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 50s.
Tuesday...Partly sunny. Highs in the mid 70s.
Tuesday Night...Partly cloudy in the evening, then mostly cloudy with a chance of showers after midnight. Lows in the upper 50s. Chance of rain 40 percent.
Wednesday...Mostly cloudy with a chance of showers. Highs around 70. Chance of rain 50 percent.
Wednesday Night...Showers likely. Lows in the upper 50s. Chance of rain 60 percent.
Thursday...Mostly cloudy with showers likely in the morning, then partly sunny with a chance of showers in the afternoon. Highs in the mid 70s. Chance of rain 60 percent.
Thursday Night...Partly cloudy with a chance of showers in the evening, then mostly cloudy after midnight. Lows around 60. Chance of rain 50 percent.
Friday...Partly sunny. Highs in the upper 70s.
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