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 14 2025

Clear


Temp: 52°F
  • Humidity:
  • 92%
  • Winds:
  • 3 MPH SSE
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.19 in.
  • Dewpoint:
  • 50°F
  • Heat index:
  • 52°F

  • Sunrise:
  • 4:57 AM EDT
  • Sunset:
  • 8:22 PM EDT
  • Moonrise:
  • 11:24 PM EDT
  • Moonset:
  • 7:42 AM EDT

TONIGHT

PARTLY CLOUDY
Lo: 49°F

SUNDAY

PARTLY SUNNY
Hi: 65°F
Lo: 51°F

MONDAY

PARTLY SUNNY
Hi: 69°F
Lo: 55°F

TUESDAY

PARTLY SUNNY
Hi: 71°F
Lo: 59°F
Weather Forecast In Detail:
Forecast Issued: 628 PM EDT Sat Jun 14 2025

Tonight...Partly cloudy. Lows in the upper 40s. Light and variable winds.
Sunday...Partly sunny. Highs in the mid 60s. Light and variable winds, becoming south around 10 mph in the afternoon.
Sunday Night...Partly cloudy. Lows in the lower 50s. South winds around 10 mph in the evening, becoming light and variable.
Monday...Partly sunny. Highs in the upper 60s. Light and variable winds, becoming south around 10 mph with gusts up to 20 mph in the afternoon.
Monday Night...Partly cloudy. Lows in the mid 50s. South winds around 10 mph with gusts up to 20 mph in the evening, becoming light and variable.
Tuesday...Partly sunny. Highs in the lower 70s.
Tuesday Night...Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 50s.
Wednesday...Mostly cloudy in the morning, then becoming partly sunny. Highs in the mid 70s.
Wednesday Night...Partly cloudy. Lows in the lower 60s.
Juneteenth...Partly sunny. A chance of showers in the afternoon. Highs in the upper 70s. Chance of rain 50 percent.
Thursday Night...Partly cloudy with a chance of showers. Lows in the lower 60s. Chance of rain 50 percent.
Friday...Partly sunny. A chance of showers in the afternoon. Highs in the mid 70s. Chance of rain 30 percent.
Friday Night...Partly cloudy. A chance of showers in the evening. Lows in the upper 50s. Chance of rain 30 percent.
Saturday...Partly sunny. Highs in the mid 70s.
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