Marine Weather Net

Belfast, ME Weather Forecast


Marine Forecast: Penobscot Bay


Belfast, Maine

 Lat: 44.43N, Lon: 69.01W

Current Conditions Updated: 156 PM EDT THU AUG 13 2026

Clear


Temp: 74°F
  • Humidity:
  • 57%
  • Winds:
  • 9 MPH SE
  • Gusts:
  • N/A MPH
  • Barometer:
  • 29.78 in.
  • Dewpoint:
  • 58°F
  • Heat index:
  • 77°F

  • Sunrise:
  • 5:35 AM EDT
  • Sunset:
  • 7:43 PM EDT
  • Moonrise:
  • 6:32 AM EDT
  • Moonset:
  • 8:14 PM EDT

REST OF TODAY

PARTLY SUNNY
Hi: 79°F
Lo: 57°F
Precip: 70%

FRIDAY

MOSTLY SUNNY
Hi: 79°F
Lo: 59°F

SATURDAY

MOSTLY SUNNY
Hi: 80°F
Lo: 55°F

SUNDAY

PARTLY SUNNY
Hi: 79°F
Lo: 59°F
Weather Forecast In Detail:
Forecast Issued: 1025 AM EDT Thu Aug 13 2026

Rest Of Today...Mostly cloudy late this morning, then becoming partly sunny. A slight chance of showers late this morning, then showers likely with a chance of thunderstorms this afternoon. Highs in the upper 70s. Light and variable winds. Chance of rain 70 percent.
Tonight...Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows in the upper 50s. Light and variable winds, becoming northwest around 10 mph after midnight. Chance of rain 50 percent.
Friday...Mostly sunny. Highs in the upper 70s. Northwest winds around 10 mph.
Friday Night...Mostly clear. Lows in the upper 50s. Northwest winds around 10 mph in the evening, becoming light and variable.
Saturday...Mostly sunny. Highs around 80. Light and variable winds.
Saturday Night...Mostly clear. Lows in the mid 50s.
Sunday...Partly sunny. Highs in the upper 70s.
Sunday Night...Showers likely. Lows in the upper 50s. Chance of rain 70 percent.
Monday...Showers likely in the morning, then partly sunny with a chance of showers in the afternoon. Highs in the mid 70s. Chance of rain 70 percent.
Monday Night...Partly cloudy in the evening, then clearing. Lows in the upper 50s.
Tuesday...Mostly sunny. Highs in the lower 80s.
Tuesday Night...Mostly clear. Lows in the upper 50s.
Wednesday...Mostly sunny. Highs around 80.
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