Marine Weather Net

Lewiston, ME Weather Forecast


Marine Forecast: Casco Bay


Lewiston, Maine

 Lat: 44.10N, Lon: 70.22W

Current Conditions Updated: 556 AM EDT WED JUL 22 2026

Fog
Temp: 64°F
  • Humidity:
  • 100%
  • Winds:
  • N/A
  • Gusts:
  • N/A MPH
  • Barometer:
  • 29.63 in.
  • Dewpoint:
  • 64°F
  • Heat index:
  • 64°F

  • Sunrise:
  • 5:16 AM EDT
  • Sunset:
  • 8:14 PM EDT
  • Moonrise:
  • 2:50 PM EDT
  • Moonset:
  • N/A EDT

TODAY

PARTLY SUNNY
Hi: 81°F
Lo: 55°F
Precip: 20%

THURSDAY

MOSTLY SUNNY
Hi: 79°F
Lo: 51°F

FRIDAY

MOSTLY SUNNY
Hi: 81°F
Lo: 55°F

SATURDAY

MOSTLY SUNNY
Hi: 81°F
Lo: 55°F
Weather Forecast In Detail:
Forecast Issued: 219 AM EDT Wed Jul 22 2026

Today...Mostly cloudy this morning, then becoming partly sunny. Patchy fog this morning. A slight chance of showers. A slight chance of thunderstorms this afternoon. Some thunderstorms May produce gusty winds this afternoon. Highs in the lower 80s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 20 percent.
Tonight...Mostly clear. Less humid with lows in the mid 50s. West winds 10 to 15 mph with gusts up to 25 mph in the evening, becoming light and variable.
Thursday...Mostly sunny. Highs in the upper 70s. West winds around 10 mph with gusts up to 20 mph.
Thursday Night...Mostly clear. Lows in the lower 50s. Light and variable winds.
Friday...Mostly sunny. Highs in the lower 80s. Light and variable winds, becoming southwest around 10 mph in the afternoon.
Friday Night...Mostly clear. Lows in the mid 50s.
Saturday...Mostly sunny. Highs in the lower 80s.
Saturday Night...Mostly clear. Lows in the mid 50s.
Sunday...Partly sunny. Highs in the lower 80s.
Sunday Night...Partly cloudy. Lows in the upper 50s.
Monday...Partly sunny. A chance of showers in the afternoon. Highs around 80. Chance of rain 40 percent.
Monday Night...Partly cloudy with a 40 percent chance of showers. Lows in the upper 50s.
Tuesday...Partly sunny with a chance of showers. Highs in the upper 70s. Chance of rain 40 percent.
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