National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Bar Harbor, Hancock County-Bar Harbor Airport (KBHB)

Lat: 44.45°NLon: 68.37°WElev: 82ft.

Fog

65°F

18°C

Humidity 100%
Wind Speed S 3 mph
Barometer 29.89 in (1012.3 mb)
Dewpoint 65°F (18°C)
Visibility 0.15 mi
Last update 20 Aug 3:56 am EDT
Extended Forecast for

Prospect Harbor ME

Dense Fog Advisory August 20, 04:34am until August 20, 07:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory August 20, 04:34am until August 20, 07:00am

    NOW until 7:00am Thu

    Dense Fog Advisory

  • Today

    High: 74 °F

    Areas Dense
    Fog then
    Partly Sunny

  • Tonight

    Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 59. Calm wind.

    Low: 59 °F

    Decreasing
    Clouds

  • Friday

    Friday: Sunny, with a high near 73. Light and variable wind becoming southeast around 6 mph in the afternoon.

    High: 73 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 55. Calm wind.

    Low: 55 °F

    Partly Cloudy

  • Saturday

    Saturday: Showers likely, mainly after 5pm. Mostly cloudy, with a high near 65. East wind 5 to 8 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    High: 65 °F

    Partly Sunny
    then Showers
    Likely

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Low around 59. East wind 6 to 8 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    Low: 59 °F

    Showers

  • Sunday

    Sunday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 66. South wind around 7 mph. Chance of precipitation is 60%.

    High: 66 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.

    Low: 60 °F

    Showers
    Likely then
    Chance
    T-storms

Detailed Forecast

Today
Areas of dense fog before 10am. Otherwise, partly sunny, with a high near 74. Calm wind becoming south 5 to 7 mph in the afternoon.
Tonight
Cloudy, then gradually becoming partly cloudy, with a low around 59. Calm wind.
Friday
Sunny, with a high near 73. Light and variable wind becoming southeast around 6 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 55. Calm wind.
Saturday
Showers likely, mainly after 5pm. Mostly cloudy, with a high near 65. East wind 5 to 8 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
Showers and possibly a thunderstorm. Low around 59. East wind 6 to 8 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Sunday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 66. South wind around 7 mph. Chance of precipitation is 60%.
Sunday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Monday
A chance of showers and thunderstorms before 9am, then a slight chance of showers between 9am and 1pm. Partly sunny, with a high near 71. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 57.
Tuesday
Sunny, with a high near 71.
Tuesday Night
Mostly clear, with a low around 57.
Wednesday
Sunny, with a high near 72.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Prospect Harbor ME
 44.45°N 68.01°W (Elev. 3 ft)
Last Update:
4:01 am EDT Aug 20, 2026
Forecast Valid:
4am EDT Aug 20, 2026-6pm EDT Aug 26, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation