Marine Weather Net

Harpswell, ME Weather Forecast


Marine Forecast: Casco Bay


Harpswell, Maine

 Lat: 43.85N, Lon: 70.36W

Current Conditions Updated: 656 PM EST TUE NOV 25 2025

Mostly Cloudy
Temp: 43°F
  • Humidity:
  • 64%
  • Winds:
  • 5 MPH SSE
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.08 in.
  • Dewpoint:
  • 32°F
  • Heat index:
  • 43°F

  • Sunrise:
  • 6:46 AM EST
  • Sunset:
  • 4:07 PM EST
  • Moonrise:
  • 11:23 AM EST
  • Moonset:
  • 8:36 PM EST

TONIGHT

RAIN
Lo: 37°F
Precip: 100%

WEDNESDAY

CHANCE OF RAIN
Hi: 49°F
Lo: 35°F
Precip: 50%

THANKSGIVING DAY

PARTLY SUNNY
Hi: 45°F
Lo: 29°F

FRIDAY

PARTLY SUNNY
Hi: 39°F
Lo: 25°F
Weather Forecast In Detail:
Forecast Issued: 500 PM EST Tue Nov 25 2025

Tonight...Rain. Patchy fog after midnight. Lows in the upper 30s. Light and variable winds. Chance of rain near 100 percent.
Wednesday...Cloudy with a 50 percent chance of rain. Patchy fog. Highs in the upper 40s. Light and variable winds.
Wednesday Night...Mostly cloudy. Patchy fog in the evening. Rain likely, mainly in the evening. Lows in the mid 30s. Light and variable winds, becoming southwest around 10 mph with gusts up to 20 mph after midnight. Chance of rain 70 percent.
Thanksgiving Day...Partly sunny. Highs in the mid 40s. West winds 10 to 15 mph with gusts up to 30 mph.
Thursday Night...Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 20s.
Friday...Partly sunny. Highs in the upper 30s.
Friday Night...Partly cloudy. Lows in the mid 20s.
Saturday...Partly sunny. Highs in the mid 30s.
Saturday Night...Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 20s.
Sunday...Cloudy. A chance of rain in the afternoon. Highs in the mid 40s. Chance of rain 40 percent.
Sunday Night...Rain likely, mainly in the evening. Lows in the lower 30s. Chance of rain 60 percent.
Monday...Partly sunny in the morning, then becoming mostly cloudy. A 40 percent chance of rain. Highs in the mid 40s.
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