Marine Weather Net

Southwest Harbor ME Weather Forecast




Southwest Harbor, Maine

 Lat: 44.28N, Lon: 68.33W

Current Conditions Updated: 556 AM EST SUN JAN 11 2026

Precipitation
Temp: 33°F
  • Humidity:
  • 95%
  • Winds:
  • 12 MPH NNE
  • Gusts:
  • N/A MPH
  • Barometer:
  • 29.75 in.
  • Dewpoint:
  • 32°F
  • Heat index:
  • 33°F

  • Sunrise:
  • 7:06 AM EST
  • Sunset:
  • 4:13 PM EST
  • Moonrise:
  • 12:43 AM EST
  • Moonset:
  • 10:58 AM EST

TODAY

SNOW
Lo: 25°F
Precip: 70%

MONDAY

MOSTLY SUNNY
Hi: 31°F
Lo: 29°F

TUESDAY

MOSTLY SUNNY
Hi: 39°F
Lo: 30°F

WEDNESDAY

CHANCE OF RAIN
Hi: 41°F
Lo: 27°F
Precip: 30%
Weather Forecast In Detail:
Forecast Issued: 1242 AM EST Sun Jan 11 2026

WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 4 PM EST THIS AFTERNOON
Today...Cloudy with a chance of freezing drizzle. Rain and freezing rain likely this morning, then a chance of rain, snow with a slight chance of freezing rain this afternoon. Little or no snow accumulation. Ice accumulation of up to a tenth of an inch. Cooler. Near steady temperature in the lower 30s. Northeast winds 10 to 15 mph with gusts up to 30 mph, becoming north 5 to 10 mph with gusts up to 20 mph this afternoon. Chance of precipitation 70 percent.
Tonight...Mostly cloudy with a 50 percent chance of snow. Little or no snow accumulation. Lows in the mid 20s. Northwest winds 5 to 10 mph with gusts up to 30 mph, increasing to west 15 to 20 mph with gusts up to 45 mph after midnight.
Monday...Mostly sunny. Highs in the lower 30s. West winds 15 to 20 mph with gusts up to 45 mph.
Monday Night...Mostly cloudy. Near steady temperature in the upper 20s. Temperature rising into the upper 20s after midnight. West winds 5 to 10 mph with gusts up to 30 mph.
Tuesday...Mostly sunny. Highs in the upper 30s. Southwest winds 5 to 10 mph with gusts up to 20 mph.
Tuesday Night...Mostly cloudy. A slight chance of rain after midnight. Lows around 30. Temperature rising into the mid 30s after midnight. Chance of rain 20 percent.
Wednesday...Cloudy with a 30 percent chance of rain. Highs in the lower 40s.
Wednesday Night...Cloudy. A chance of rain after midnight. Lows in the upper 20s. Chance of rain 50 percent.
Thursday...A chance of snow in the morning. Mostly cloudy with a chance of rain. Highs in the upper 30s. Temperature falling into the upper 20s in the afternoon. Chance of precipitation 40 percent.
Thursday Night...Mostly cloudy. A chance of snow after midnight. Cooler with lows 10 to 15. Chance of snow 30 percent.
Friday...Partly sunny. A chance of snow in the morning. Cooler with highs in the mid 20s. Chance of snow 30 percent.
Friday Night...Partly cloudy in the evening, then becoming mostly cloudy. Lows 10 to 15.
Saturday...Mostly sunny. Highs in the lower 30s.
SHARE THIS PAGE: