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

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

Lat: 44.45°NLon: 68.37°WElev: 82ft.

Mostly Cloudy

77°F

25°C

Humidity 64%
Wind Speed NE 6 mph
Barometer 29.73 in (1006.8 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 4 Sep 3:56 pm EDT
Extended Forecast for

Castine ME

  • This Afternoon

    This Afternoon: Scattered showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 71. West wind around 7 mph. Chance of precipitation is 30%.

    High: 71 °F

    Scattered
    Showers

  • Tonight

    Tonight: Partly cloudy, with a low around 59. Northwest wind 6 to 9 mph.

    Low: 59 °F

    Partly Cloudy

  • Saturday

    Saturday: Isolated showers before 9am. Partly sunny, with a high near 66. North wind 13 to 15 mph. Chance of precipitation is 20%.

    High: 66 °F

    Isolated
    Showers then
    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 53. North wind 11 to 13 mph.

    Low: 53 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 67. North wind 13 to 15 mph, with gusts as high as 26 mph.

    High: 67 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 51. Northwest wind around 6 mph.

    Low: 51 °F

    Partly Cloudy

  • Labor Day

    Labor Day: Sunny, with a high near 72. Northwest wind 5 to 9 mph.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers between 9am and noon. Mostly sunny, with a high near 70. Chance of precipitation is 20%.

    High: 70 °F

    Slight Chance
    Showers then
    Sunny

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 71. West wind around 7 mph. Chance of precipitation is 30%.
Tonight
Partly cloudy, with a low around 59. Northwest wind 6 to 9 mph.
Saturday
Isolated showers before 9am. Partly sunny, with a high near 66. North wind 13 to 15 mph. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 53. North wind 11 to 13 mph.
Sunday
Mostly sunny, with a high near 67. North wind 13 to 15 mph, with gusts as high as 26 mph.
Sunday Night
Partly cloudy, with a low around 51. Northwest wind around 6 mph.
Labor Day
Sunny, with a high near 72. Northwest wind 5 to 9 mph.
Monday Night
Mostly clear, with a low around 57.
Tuesday
A slight chance of showers between 9am and noon. Mostly sunny, with a high near 70. Chance of precipitation is 20%.
Tuesday Night
Partly cloudy, with a low around 51.
Wednesday
A chance of showers. Mostly sunny, with a high near 65. Chance of precipitation is 30%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 58. Breezy. Chance of precipitation is 70%.
Thursday
A chance of showers. Partly sunny, with a high near 71. Chance of precipitation is 30%.
Thursday Night
A chance of showers. Partly cloudy, with a low around 55. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 65.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Castine ME
 44.38°N 68.8°W (Elev. 0 ft)
Last Update:
4:02 pm EDT Sep 4, 2026
Forecast Valid:
4pm EDT Sep 4, 2026-6pm EDT Sep 11, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation