Marine Weather Net

Portland, ME Weather Forecast


Marine Forecast: Casco Bay


Portland, Maine

 Lat: 43.66N, Lon: 70.26W

Current Conditions Updated: 951 PM EDT SAT JUN 13 2026

Clear


Temp: 71°F
  • Humidity:
  • 68%
  • Winds:
  • N/A
  • Gusts:
  • N/A MPH
  • Barometer:
  • 29.8 in.
  • Dewpoint:
  • 60°F
  • Heat index:
  • 75°F

  • Sunrise:
  • 4:57 AM EDT
  • Sunset:
  • 8:22 PM EDT
  • Moonrise:
  • 3:05 AM EDT
  • Moonset:
  • 7:19 PM EDT

TONIGHT

MOSTLY CLEAR
Lo: 60°F

SUNDAY

PARTLY SUNNY
Hi: 81°F
Lo: 57°F

MONDAY

PARTLY SUNNY
Hi: 81°F
Lo: 55°F
Precip: 60%

TUESDAY

MOSTLY SUNNY
Hi: 79°F
Lo: 55°F
Weather Forecast In Detail:
Forecast Issued: 758 PM EDT Sat Jun 13 2026

BEACH HAZARDS STATEMENT IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY EVENING
Tonight...Mostly clear. Lows around 60. Light and variable winds.
Sunday...Partly sunny. Highs in the lower 80s. South winds 10 to 15 mph. Gusts up to 30 mph in the afternoon.
Sunday Night...Mostly cloudy. Showers after midnight. Lows in the upper 50s. South winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 90 percent.
Monday...Mostly cloudy with showers likely in the morning, then partly sunny in the afternoon. Highs in the lower 80s. Southwest winds around 10 mph, becoming west in the afternoon. Chance of rain 60 percent.
Monday Night...Mostly clear. Lows in the mid 50s.
Tuesday...Mostly sunny. Highs in the upper 70s.
Tuesday Night...Mostly clear. Lows in the mid 50s.
Wednesday...Partly sunny. Highs in the upper 70s.
Wednesday Night...Partly cloudy. Lows in the mid 50s.
Thursday...Partly sunny with a chance of showers in the morning, then showers likely in the afternoon. Highs in the mid 70s. Chance of rain 70 percent.
Thursday Night...Showers likely in the evening, then partly cloudy with a chance of showers after midnight. Lows around 60. Chance of rain 70 percent.
Juneteenth...Partly sunny. A chance of showers in the morning. Highs in the mid 80s. Chance of rain 30 percent.
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