Marine Weather Net

Castine, ME Weather Forecast


Marine Forecast: Penobscot Bay


Castine, Maine

 Lat: 44.39N, Lon: 68.8W

Current Conditions Updated: 908 AM EDT SAT JUN 27 2026

Overcast
Temp: 60°F
  • Humidity:
  • 100%
  • Winds:
  • 5 MPH ENE
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.06 in.
  • Dewpoint:
  • 60°F
  • Heat index:
  • 60°F

  • Sunrise:
  • 4:51 AM EDT
  • Sunset:
  • 8:22 PM EDT
  • Moonrise:
  • 7:02 PM EDT
  • Moonset:
  • 2:29 AM EDT

TODAY

PARTLY SUNNY
Hi: 75°F
Lo: 55°F
Precip: 20%

SUNDAY

PARTLY SUNNY
Hi: 79°F
Lo: 57°F
Precip: 40%

MONDAY

SUNNY

Hi: 79°F
Lo: 59°F

TUESDAY

MOSTLY SUNNY
Hi: 75°F
Lo: 59°F
Weather Forecast In Detail:
Forecast Issued: 758 AM EDT Sat Jun 27 2026

DENSE FOG ADVISORY NOW IN EFFECT UNTIL 9 AM EDT THIS MORNING
Today...Mostly cloudy this morning, then partly sunny with isolated showers this afternoon. Areas of dense fog this morning, then areas of fog this afternoon. Visibility one quarter mile or less at Times this morning. Highs in the mid 70s. North winds around 5 mph, becoming south around 5 mph with gusts up to 15 mph this afternoon. Chance of rain 20 percent.
Tonight...Mostly cloudy. Isolated showers in the evening. Areas of fog. Lows in the mid 50s. Southwest winds around 5 mph in the evening, becoming light and variable. Chance of rain 20 percent.
Sunday...Areas of fog in the morning. Mostly cloudy in the morning, then partly sunny with a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 70s. North winds around 5 mph, becoming southwest around 5 mph in the afternoon. Chance of rain 40 percent.
Sunday Night...Partly cloudy. A chance of showers with a slight chance of thunderstorms in the evening. Patchy fog in the evening, then areas of fog after midnight. Lows in the upper 50s. Southwest winds around 5 mph, becoming northwest after midnight. Chance of rain 40 percent.
Monday...Patchy fog in the morning. Sunny. Highs in the upper 70s. Northwest winds around 5 mph, becoming southwest in the afternoon.
Monday Night...Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 50s.
Tuesday...Mostly sunny. Highs in the mid 70s.
Tuesday Night...Mostly cloudy with a 40 percent chance of showers. Lows in the upper 50s.
Wednesday...Partly sunny. A chance of showers in the morning. Highs around 80. Chance of rain 30 percent.
Wednesday Night...Partly cloudy with a chance of showers in the evening, then mostly cloudy after midnight. Lows in the lower 60s. Chance of rain 30 percent.
Thursday...Mostly sunny. Hot with highs in the mid 80s.
Thursday Night...Partly cloudy. Lows in the mid 60s.
Friday...Mostly sunny. A chance of showers in the afternoon. Highs in the lower 80s. Chance of rain 40 percent.
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