Marine Weather Net

Yarmouth, ME Weather Forecast


Marine Forecast: Casco Bay


Yarmouth, Maine

 Lat: 43.80N, Lon: 70.19W

Current Conditions Updated: 1251 PM EDT FRI AUG 28 2026

Overcast
Temp: 78°F
  • Humidity:
  • 66%
  • Winds:
  • 7 MPH SSW
  • Gusts:
  • N/A MPH
  • Barometer:
  • 29.98 in.
  • Dewpoint:
  • 66°F
  • Heat index:
  • 80°F

  • Sunrise:
  • 5:58 AM EDT
  • Sunset:
  • 7:22 PM EDT
  • Moonrise:
  • 7:34 PM EDT
  • Moonset:
  • 6:21 AM EDT

TODAY

PARTLY SUNNY
Hi: 79°F
Lo: 55°F
Precip: 30%

SATURDAY

SUNNY

Hi: 79°F
Lo: 55°F

SUNDAY

PARTLY SUNNY
Hi: 81°F
Lo: 61°F

MONDAY

PARTLY SUNNY
Hi: 79°F
Lo: 55°F
Weather Forecast In Detail:
Forecast Issued: 801 AM EDT Fri Aug 28 2026

Today...Patchy fog this morning. Mostly cloudy this morning, then partly sunny with a chance of thunderstorms with a slight chance of showers this afternoon. Some thunderstorms May produce gusty winds and small hail this afternoon. Highs in the upper 70s. Light and variable winds, becoming south around 10 mph this afternoon. Chance of rain 30 percent.
Tonight...Partly cloudy. Lows in the mid 50s. Northwest winds around 10 mph in the evening, becoming light and variable.
Saturday...Sunny. Highs in the upper 70s. Light and variable winds, becoming southwest around 10 mph with gusts up to 20 mph in the afternoon.
Saturday Night...Mostly clear. Lows in the mid 50s. Southwest winds around 10 mph with gusts up to 20 mph in the evening, becoming light and variable.
Sunday...Partly sunny. Highs in the lower 80s. Southwest winds around 10 mph.
Sunday Night...Partly cloudy. Lows in the lower 60s.
Monday...Partly sunny. Highs in the upper 70s.
Monday Night...Partly cloudy. Lows in the mid 50s.
Tuesday...Partly sunny with a 40 percent chance of showers. Highs in the lower 70s.
Tuesday Night...Partly cloudy in the evening, then becoming mostly cloudy. A 50 percent chance of showers. Lows in the upper 50s.
Wednesday...Partly sunny with a 50 percent chance of showers. Highs in the mid 70s.
Wednesday Night...Mostly cloudy with a 50 percent chance of showers. Lows in the upper 50s.
Thursday...Mostly cloudy in the morning, then becoming partly sunny. A 30 percent chance of showers. Highs in the mid 70s.
SHARE THIS PAGE: