Marine Weather Net

Lewiston, ME Weather Forecast


Marine Forecast: Casco Bay


Lewiston, Maine

 Lat: 44.10N, Lon: 70.22W

Current Conditions Updated: 1056 PM EDT TUE SEP 15 2026

Overcast
Temp: 55°F
  • Humidity:
  • 83%
  • Winds:
  • 5 MPH SSE
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.37 in.
  • Dewpoint:
  • 50°F
  • Heat index:
  • 55°F

  • Sunrise:
  • 6:18 AM EDT
  • Sunset:
  • 6:50 PM EDT
  • Moonrise:
  • 12:34 PM EDT
  • Moonset:
  • 9:07 PM EDT

TONIGHT

PARTLY CLOUDY
Lo: 49°F

WEDNESDAY

PARTLY SUNNY
Hi: 79°F
Lo: 55°F

THURSDAY

CHANCE OF SHOWERS
Hi: 71°F
Lo: 55°F
Precip: 30%

FRIDAY

MOSTLY SUNNY
Hi: 71°F
Lo: 45°F
Weather Forecast In Detail:
Forecast Issued: 500 PM EDT Tue Sep 15 2026

Tonight...Partly cloudy. Lows in the upper 40s. South winds around 10 mph in the evening, becoming light and variable.
Wednesday...Partly sunny. Highs in the upper 70s. Light and variable winds.
Wednesday Night...Partly cloudy. Lows in the mid 50s. Light and variable winds.
Thursday...Mostly cloudy. A chance of showers in the afternoon. Highs in the lower 70s. Light and variable winds. Chance of rain 30 percent.
Thursday Night...Mostly cloudy with a 50 percent chance of showers. Lows in the mid 50s.
Friday...Mostly sunny. Highs in the lower 70s.
Friday Night...Mostly clear. Lows in the mid 40s.
Saturday...Mostly sunny. Highs in the mid 60s.
Saturday Night...Partly cloudy in the evening, then mostly cloudy with a chance of showers after midnight. Lows in the mid 40s. Chance of rain 30 percent.
Sunday...Mostly cloudy with a 50 percent chance of showers. Highs in the mid 60s.
Sunday Night...Mostly cloudy in the evening, then becoming partly cloudy. A 50 percent chance of showers. Lows in the upper 40s.
Monday...Partly sunny with a 40 percent chance of showers. Highs in the mid 60s.
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