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.

Overcast

64°F

18°C

Humidity 100%
Wind Speed S 6 mph
Barometer 29.89 in (1012.4 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 24 Aug 12:56 am EDT
Extended Forecast for

Sullivan ME

Dense Fog Advisory until August 24, 09:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until August 24, 09:00am

    NOW until 9:00am Mon

    Dense Fog Advisory

  • Overnight

    Low: 63 °F

    Scattered
    Showers and
    Dense Fog

  • Monday

    Monday: Scattered showers, mainly before 8am. Widespread dense fog, mainly before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 74. South wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 74 °F

    Scattered
    Showers and
    Dense Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Areas of fog. Otherwise, mostly cloudy, with a low around 60. South wind 3 to 6 mph.

    Low: 60 °F

    Areas Fog

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 77. Light southwest wind becoming south 6 to 11 mph in the morning. Winds could gust as high as 22 mph.

    High: 77 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 59. Southwest wind around 5 mph becoming calm in the evening.

    Low: 59 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 79. Light west wind increasing to 5 to 9 mph in the morning.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59. Southwest wind around 5 mph becoming calm in the evening.

    Low: 59 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

Detailed Forecast

Overnight
Scattered showers, mainly after 4am. Widespread dense fog. Otherwise, cloudy, with a low around 63. Light south wind. Chance of precipitation is 30%.
Monday
Scattered showers, mainly before 8am. Widespread dense fog, mainly before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 74. South wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Monday Night
Areas of fog. Otherwise, mostly cloudy, with a low around 60. South wind 3 to 6 mph.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 77. Light southwest wind becoming south 6 to 11 mph in the morning. Winds could gust as high as 22 mph.
Tuesday Night
Mostly clear, with a low around 59. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 79. Light west wind increasing to 5 to 9 mph in the morning.
Wednesday Night
Mostly clear, with a low around 59. Southwest wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 80.
Thursday Night
A slight chance of showers after 1am. Partly cloudy, with a low around 61. Chance of precipitation is 20%.
Friday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 76. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 80.
Saturday Night
Partly cloudy, with a low around 56.
Sunday
Sunny, with a high near 76.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sullivan ME
 44.54°N 68.17°W (Elev. 226 ft)
Last Update:
9:13 pm EDT Aug 23, 2026
Forecast Valid:
1am EDT Aug 24, 2026-6pm EDT Aug 30, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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