Marine Weather Net

Harpswell, ME Weather Forecast


Marine Forecast: Casco Bay


Harpswell, Maine

 Lat: 43.85N, Lon: 70.36W

Current Conditions Updated: 638 PM EST SUN DEC 7 2025

Precipitation
Temp: 28°F
  • Humidity:
  • 68%
  • Winds:
  • 3 MPH N
  • Gusts:
  • N/A MPH
  • Barometer:
  • 29.97 in.
  • Dewpoint:
  • 19°F
  • Heat index:
  • 28°F

  • Sunrise:
  • 6:59 AM EST
  • Sunset:
  • 4:02 PM EST
  • Moonrise:
  • 6:58 PM EST
  • Moonset:
  • 10:04 AM EST

TONIGHT

PARTLY CLOUDY
Lo: 13°F
Precip: 70%

MONDAY

MOSTLY SUNNY
Hi: 21°F
Lo: 1°F

TUESDAY

MOSTLY SUNNY
Hi: 25°F
Lo: 16°F

WEDNESDAY

RAIN AND SNOW
Hi: 39°F
Lo: 25°F
Precip: 70%
Weather Forecast In Detail:
Forecast Issued: 716 PM EST Sun Dec 07 2025

Tonight...Cloudy with snow likely this evening, then partly cloudy after midnight. Snow accumulation around an inch. Lows around 13. Light and variable winds, becoming northwest 10 to 15 mph with gusts up to 30 mph after midnight. Chance of snow 70 percent. Wind chill values as low as zero after midnight.
Monday...Mostly sunny. Highs in the lower 20s. Northwest winds 15 to 20 mph with gusts up to 30 mph. Wind chill values as low as 4 below.
Monday Night...Mostly clear. Lows around 1 above. Light and variable winds.
Tuesday...Mostly sunny in the morning, then becoming mostly cloudy. Highs in the mid 20s. Light and variable winds.
Tuesday Night...Mostly cloudy with a 50 percent chance of snow. Lows around 16. Light and variable winds.
Wednesday...A chance of snow and rain in the morning, then rain and snow likely in the afternoon. Highs in the upper 30s. Chance of precipitation 70 percent.
Wednesday Night...Rain likely in the evening. A chance of snow. Lows in the mid 20s. Chance of precipitation 70 percent.
Thursday...Partly sunny. Highs in the mid 30s.
Thursday Night...Partly cloudy. Lows around 15.
Friday...Partly sunny. Highs around 30.
Friday Night...Partly cloudy with a 30 percent chance of snow. Lows around 10 above.
Saturday...Partly sunny. A chance of snow in the morning. Highs in the mid 20s. Chance of snow 30 percent.
Saturday Night...Partly cloudy. Lows around 10 above.
Sunday...Partly sunny. Highs in the mid 20s.
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