Marine Weather Net

Belfast, ME Weather Forecast


Marine Forecast: Penobscot Bay


Belfast, Maine

 Lat: 44.43N, Lon: 69.01W

Current Conditions Updated: 1156 AM EDT MON AUG 17 2026

Overcast
Temp: 67°F
  • Humidity:
  • 90%
  • Winds:
  • 10 MPH SSW
  • Gusts:
  • N/A MPH
  • Barometer:
  • 29.91 in.
  • Dewpoint:
  • 64°F
  • Heat index:
  • 67°F

  • Sunrise:
  • 5:39 AM EDT
  • Sunset:
  • 7:36 PM EDT
  • Moonrise:
  • 11:23 AM EDT
  • Moonset:
  • 9:34 PM EDT

THIS AFTERNOON

MOSTLY CLOUDY
Hi: 69°F
Lo: 60°F

TUESDAY

PARTLY SUNNY
Hi: 75°F
Lo: 65°F
Precip: 20%

WEDNESDAY

PARTLY SUNNY
Hi: 80°F
Lo: 61°F

THURSDAY

PARTLY SUNNY
Hi: 80°F
Lo: 59°F
Weather Forecast In Detail:
Forecast Issued: 235 PM EDT Mon Aug 17 2026

This Afternoon...Mostly cloudy. Highs in the upper 60s. South winds around 10 mph with gusts up to 20 mph.
Tonight...Mostly cloudy. Patchy fog after midnight. Lows around 60. Light and variable winds.
Tuesday...Patchy fog in the morning. Cloudy with a slight chance of showers in the morning, then partly sunny in the afternoon. Humid with highs in the mid 70s. Light and variable winds. Chance of rain 20 percent.
Tuesday Night...Partly cloudy in the evening, then becoming mostly cloudy. Patchy fog. Humid with lows in the lower 60s. Light and variable winds.
Wednesday...Partly sunny. Humid with highs around 80. Light and variable winds, becoming southwest around 10 mph in the afternoon.
Wednesday Night...Partly cloudy. Lows in the lower 60s.
Thursday...Partly sunny. Highs around 80.
Thursday Night...Partly cloudy. Lows in the upper 50s.
Friday...Partly sunny. Highs in the upper 70s.
Friday Night...Partly cloudy. Lows in the upper 50s.
Saturday...Partly sunny. Highs in the mid 70s.
Saturday Night...Partly cloudy. A chance of showers after midnight. Lows in the upper 50s. Chance of rain 30 percent.
Sunday...Mostly cloudy with a 50 percent chance of showers. Highs in the mid 70s.
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