Marine Weather Net

Harpswell, ME Weather Forecast


Marine Forecast: Casco Bay


Harpswell, Maine

 Lat: 43.85N, Lon: 70.36W

Current Conditions Updated: 1025 PM EDT THU JUL 10 2025

Overcast
Temp: 60°F
  • Humidity:
  • 100%
  • Winds:
  • 6 MPH S
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.04 in.
  • Dewpoint:
  • 60°F
  • Heat index:
  • 60°F

  • Sunrise:
  • 5:07 AM EDT
  • Sunset:
  • 8:23 PM EDT
  • Moonrise:
  • 8:52 PM EDT
  • Moonset:
  • 4:21 AM EDT

THIS AFTERNOON

CHANCE OF T-STORM
Hi: 71°F
Lo: 57°F
Precip: 20%

FRIDAY

PARTLY SUNNY
Hi: 80°F
Lo: 61°F

SATURDAY

PARTLY SUNNY
Hi: 80°F
Lo: 61°F

SUNDAY

PARTLY SUNNY
Hi: 79°F
Lo: 61°F
Weather Forecast In Detail:
Forecast Issued: 203 PM EDT Thu Jul 10 2025

This Afternoon...Cloudy with a slight chance of showers and thunderstorms. Some thunderstorms May produce heavy rainfall. Highs in the lower 70s. Light and variable winds. Chance of rain 20 percent.
Tonight...Cloudy. A chance of showers with a slight chance of thunderstorms in the evening. Patchy fog after midnight. Some thunderstorms May produce heavy rainfall in the evening. Lows in the upper 50s. Light and variable winds. Chance of rain 40 percent.
Friday...Mostly cloudy in the morning, then becoming partly sunny. Patchy fog in the morning. Humid with highs around 80. Light and variable winds.
Friday Night...Partly cloudy. Lows in the lower 60s. Light and variable winds.
Saturday...Partly sunny. Patchy fog in the morning. Humid with highs around 80. Light and variable winds, becoming southeast around 10 mph in the afternoon.
Saturday Night...Mostly cloudy. Lows in the lower 60s.
Sunday...Mostly cloudy in the morning, then becoming partly sunny. Highs in the upper 70s.
Sunday Night...Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 60s.
Monday...Mostly cloudy. A chance of showers and thunderstorms in the afternoon. Highs around 80. Chance of rain 40 percent.
Monday Night...Mostly cloudy. A chance of showers and thunderstorms in the evening. Lows in the lower 60s. Chance of rain 40 percent.
Tuesday...Partly sunny. Warm with highs in the upper 80s.
Tuesday Night...Mostly clear. Lows in the mid 60s.
Wednesday...Mostly sunny. Hot with highs around 90.
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