Marine Weather Net

Yarmouth, ME Weather Forecast


Marine Forecast: Casco Bay


Yarmouth, Maine

 Lat: 43.80N, Lon: 70.19W

Current Conditions Updated: 351 PM EDT WED OCT 22 2025

Mostly Cloudy
Temp: 57°F
  • Humidity:
  • 89%
  • Winds:
  • 10 MPH SSE
  • Gusts:
  • N/A MPH
  • Barometer:
  • 29.62 in.
  • Dewpoint:
  • 54°F
  • Heat index:
  • 57°F

  • Sunrise:
  • 7:01 AM EDT
  • Sunset:
  • 5:45 PM EDT
  • Moonrise:
  • 8:18 AM EDT
  • Moonset:
  • 5:54 PM EDT

TONIGHT

MOSTLY CLEAR
Lo: 41°F

THURSDAY

MOSTLY SUNNY
Hi: 60°F
Lo: 39°F
Precip: 20%

FRIDAY

MOSTLY SUNNY
Hi: 59°F
Lo: 39°F

SATURDAY

PARTLY SUNNY
Hi: 55°F
Lo: 35°F
Weather Forecast In Detail:
Forecast Issued: 150 PM EDT Wed Oct 22 2025

Tonight...Mostly clear. Lows in the lower 40s. Southwest winds around 10 mph with gusts up to 20 mph.
Thursday...Mostly sunny. Isolated showers in the afternoon. Highs around 60. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 20 percent.
Thursday Night...Partly cloudy in the evening, then clearing. Lows in the upper 30s. Southwest winds around 10 mph with gusts up to 20 mph in the evening, becoming light and variable.
Friday...Mostly sunny. Highs in the upper 50s. Light and variable winds.
Friday Night...Mostly cloudy in the evening, then becoming partly cloudy. A 40 percent chance of showers. Lows in the upper 30s. Light and variable winds.
Saturday...Partly sunny. Highs in the mid 50s.
Saturday Night...Partly cloudy. Lows in the mid 30s.
Sunday...Partly sunny. Highs in the lower 50s.
Sunday Night...Partly cloudy. Lows in the mid 30s.
Monday...Partly sunny. Highs in the lower 50s.
Monday Night...Partly cloudy. Lows in the mid 30s.
Tuesday...Partly sunny. Highs in the mid 50s.
Tuesday Night...Partly cloudy. Lows in the mid 30s.
Wednesday...Partly sunny. Highs in the mid 50s.
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