Marine Weather Net

Harpswell, ME Weather Forecast


Marine Forecast: Casco Bay


Harpswell, Maine

 Lat: 43.85N, Lon: 70.36W

Current Conditions Updated: 956 AM EST FRI FEB 20 2026

Clear


Temp: 27°F
  • Humidity:
  • 84%
  • Winds:
  • N/A
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30 in.
  • Dewpoint:
  • 23°F
  • Heat index:
  • 27°F

  • Sunrise:
  • 6:34 AM EST
  • Sunset:
  • 5:14 PM EST
  • Moonrise:
  • 7:48 AM EST
  • Moonset:
  • 9:16 PM EST

TONIGHT

PARTLY CLOUDY
Lo: 15°F

FRIDAY

CHANCE OF SNOW
Hi: 35°F
Lo: 15°F
Precip: 50%

SATURDAY

PARTLY SUNNY
Hi: 31°F
Lo: 13°F
Precip: 40%

SUNDAY

PARTLY SUNNY
Hi: 35°F
Lo: 20°F
Weather Forecast In Detail:
Forecast Issued: 705 AM EST Fri Feb 20 2026

WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 7 AM EST SATURDAY
Rest Of Tonight...Partly cloudy. Patchy fog. Lows around 15. Light and variable winds.
Friday...Mostly cloudy. A chance of snow in the afternoon. Highs in the mid 30s. Light and variable winds. Chance of snow 50 percent.
Friday Night...Snow. Snow accumulation of 4 to 7 inches. Lows around 15. Light and variable winds, becoming northeast around 10 mph after midnight. Chance of snow near 100 percent.
Saturday...Cloudy with a chance of snow in the morning, then partly sunny in the afternoon. Highs in the lower 30s. Light and variable winds. Chance of snow 40 percent.
Saturday Night...Mostly clear. Lows around 13. Light and variable winds.
Sunday...Partly sunny. Highs in the mid 30s.
Sunday Night...Mostly cloudy. Lows around 20.
Monday...Mostly cloudy. Highs in the lower 30s.
Monday Night...Mostly cloudy. Lows 15 to 20.
Tuesday...Partly sunny. Highs in the mid 30s.
Tuesday Night...Mostly clear in the evening, then becoming partly cloudy. Lows around 10 above.
Wednesday...Mostly cloudy. A chance of snow in the afternoon. Highs in the mid 30s. Chance of snow 40 percent.
Wednesday Night...Snow likely. Rain likely, mainly in the evening. Lows in the lower 20s. Chance of precipitation 60 percent.
Thursday...Mostly cloudy with a chance of rain and snow in the morning, then partly sunny in the afternoon. Highs in the lower 40s. Chance of precipitation 50 percent.
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