Marine Weather Net

Portland, ME Weather Forecast


Marine Forecast: Casco Bay


Portland, Maine

 Lat: 43.66N, Lon: 70.26W

Current Conditions Updated: 351 AM EDT FRI JUL 24 2026

Clear


Temp: 54°F
  • Humidity:
  • 86%
  • Winds:
  • N/A
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.19 in.
  • Dewpoint:
  • 50°F
  • Heat index:
  • 54°F

  • Sunrise:
  • 5:20 AM EDT
  • Sunset:
  • 8:11 PM EDT
  • Moonrise:
  • 4:57 PM EDT
  • Moonset:
  • 12:37 AM EDT

TODAY

MOSTLY SUNNY
Hi: 80°F
Lo: 55°F

SATURDAY

MOSTLY SUNNY
Hi: 79°F
Lo: 51°F

SUNDAY

PARTLY SUNNY
Hi: 79°F
Lo: 55°F

MONDAY

MOSTLY SUNNY
Hi: 79°F
Lo: 59°F
Weather Forecast In Detail:
Forecast Issued: 235 AM EDT Fri Jul 24 2026

BEACH HAZARDS STATEMENT IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH THIS EVENING
Today...Mostly sunny. Highs around 80. Light and variable winds, becoming south around 10 mph with gusts up to 20 mph this afternoon.
Tonight...Mostly clear. Lows in the mid 50s. South winds around 10 mph in the evening, becoming light and variable.
Saturday...Mostly sunny. Highs in the upper 70s. Light and variable winds, becoming south around 10 mph in the afternoon.
Saturday Night...Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 50s. Light and variable winds.
Sunday...Partly sunny. Highs in the upper 70s. Light and variable winds, becoming southeast around 10 mph in the afternoon.
Sunday Night...Partly cloudy. Lows in the mid 50s.
Monday...Mostly sunny. Highs in the upper 70s.
Monday Night...Partly cloudy. Lows in the upper 50s.
Tuesday...Partly sunny. A chance of showers in the afternoon. Highs in the mid 70s. Chance of rain 50 percent.
Tuesday Night...Showers likely. Lows around 60. Chance of rain 60 percent.
Wednesday...Showers likely, mainly in the morning. Highs in the mid 70s. Chance of rain 60 percent.
Wednesday Night...Partly cloudy. A chance of showers in the evening. Lows around 60. Chance of rain 50 percent.
Thursday...Partly sunny. Highs in the upper 70s.
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