Marine Weather Net

Castine, ME Weather Forecast


Marine Forecast: Penobscot Bay


Castine, Maine

 Lat: 44.39N, Lon: 68.8W

Current Conditions Updated: 456 AM EDT FRI JUL 24 2026

Clear


Temp: 52°F
  • Humidity:
  • 96%
  • Winds:
  • N/A
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.2 in.
  • Dewpoint:
  • 51°F
  • Heat index:
  • 52°F

  • Sunrise:
  • 5:12 AM EDT
  • Sunset:
  • 8:07 PM EDT
  • Moonrise:
  • 4:54 PM EDT
  • Moonset:
  • 12:28 AM EDT

TODAY

SUNNY

Hi: 80°F
Lo: 55°F

SATURDAY

SUNNY

Hi: 79°F
Lo: 51°F

SUNDAY

MOSTLY SUNNY
Hi: 79°F
Lo: 55°F

MONDAY

SUNNY

Hi: 79°F
Lo: 59°F
Weather Forecast In Detail:
Forecast Issued: 400 AM EDT Fri Jul 24 2026

BEACH HAZARDS STATEMENT IN EFFECT FROM 8 AM EDT THIS MORNING THROUGH THIS EVENING
Today...Sunny. Highs around 80. Southwest winds 5 to 10 mph.
Tonight...Mostly clear. Lows in the mid 50s. Southwest winds 5 to 10 mph.
Saturday...Sunny. Highs in the upper 70s. South winds 5 to 10 mph.
Saturday Night...Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 50s. South winds around 5 mph in the evening, becoming light and variable.
Sunday...Mostly sunny. Highs in the upper 70s. Southeast winds 5 to 10 mph.
Sunday Night...Partly cloudy. Lows in the mid 50s.
Monday...Sunny. Highs in the upper 70s.
Monday Night...Partly cloudy. Lows in the upper 50s.
Tuesday...Partly sunny. Highs in the lower 70s.
Tuesday Night...Mostly cloudy with a chance of showers. Lows in the upper 50s. Chance of rain 50 percent.
Wednesday...Mostly cloudy in the morning, then becoming partly sunny. A chance of showers. Highs in the lower 70s. Chance of rain 50 percent.
Wednesday Night...Mostly cloudy with a chance of showers. Lows around 60. Chance of rain 50 percent.
Thursday...Partly sunny with a 40 percent chance of showers. Highs in the upper 70s.
SHARE THIS PAGE: