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.

Fair

49°F

9°C

Humidity 97%
Wind Speed Calm
Barometer 30.08 in (1018.8 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 31 Aug 4:56 am EDT
Extended Forecast for

Castine ME

  • Today

    Today: Sunny, with a high near 68. West wind around 6 mph.

    High: 68 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 54. Light and variable wind.

    Low: 54 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 70. Light and variable wind becoming south around 6 mph in the afternoon.

    High: 70 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 55. Calm wind.

    Low: 55 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 66. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 66 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 54. West wind 3 to 5 mph.

    Low: 54 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 68. Light southwest wind becoming south 5 to 10 mph in the morning.

    High: 68 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 68. West wind around 6 mph.
Tonight
Mostly clear, with a low around 54. Light and variable wind.
Labor Day
Sunny, with a high near 70. Light and variable wind becoming south around 6 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 55. Calm wind.
Tuesday
Mostly sunny, with a high near 66. Calm wind becoming southeast around 6 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 54. West wind 3 to 5 mph.
Wednesday
Sunny, with a high near 68. Light southwest wind becoming south 5 to 10 mph in the morning.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Sunny, with a high near 67.
Thursday Night
A slight chance of showers after 3am. Partly cloudy, with a low around 57. Chance of precipitation is 20%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 63. Chance of precipitation is 40%.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.
Saturday
A chance of showers. Mostly sunny, with a high near 65. Chance of precipitation is 30%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Castine ME
 44.38°N 68.8°W (Elev. 0 ft)
Last Update:
1:43 am EDT Aug 31, 2025
Forecast Valid:
5am EDT Aug 31, 2025-6pm EDT Sep 6, 2025
 
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