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.

Overcast

72°F

22°C

Humidity 94%
Wind Speed S 9 mph
Barometer 30.02 in (1016.7 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 28 Aug 9:56 am EDT
Extended Forecast for

Castine ME

  • Today

    Today: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Areas of fog after 11am. Otherwise, mostly cloudy, with a high near 70. South wind around 9 mph. Chance of precipitation is 40%.

    High: 70 °F

    Chance
    T-storms and
    Areas Fog

  • Tonight

    Tonight: Scattered showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 10pm. Patchy fog before 3am. Otherwise, cloudy during the early evening, then gradual clearing, with a low around 58. Calm wind becoming north 5 to 9 mph after midnight. Chance of precipitation is 30%.

    Low: 58 °F

    Scattered
    T-storms and
    Patchy Fog
    then Areas
    Fog

  • Saturday

    Saturday: Sunny, with a high near 72. North wind 5 to 7 mph becoming southwest in the afternoon.

    High: 72 °F

    Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 2am. Otherwise, mostly clear, with a low around 59. Southwest wind 5 to 8 mph becoming calm after midnight.

    Low: 59 °F

    Mostly Clear
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 70. Light southwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 23 mph.

    High: 70 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: A chance of showers, mainly after 10pm. Mostly cloudy, with a low around 59. Southwest wind 6 to 9 mph becoming northwest after midnight. Chance of precipitation is 30%.

    Low: 59 °F

    Chance
    Showers

  • Monday

    Monday: Sunny, with a high near 68. North wind 6 to 8 mph.

    High: 68 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers after 3pm. Mostly sunny, with a high near 67. Chance of precipitation is 20%.

    High: 67 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

Detailed Forecast

Today
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Areas of fog after 11am. Otherwise, mostly cloudy, with a high near 70. South wind around 9 mph. Chance of precipitation is 40%.
Tonight
Scattered showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 10pm. Patchy fog before 3am. Otherwise, cloudy during the early evening, then gradual clearing, with a low around 58. Calm wind becoming north 5 to 9 mph after midnight. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 72. North wind 5 to 7 mph becoming southwest in the afternoon.
Saturday Night
Patchy fog after 2am. Otherwise, mostly clear, with a low around 59. Southwest wind 5 to 8 mph becoming calm after midnight.
Sunday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 70. Light southwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 23 mph.
Sunday Night
A chance of showers, mainly after 10pm. Mostly cloudy, with a low around 59. Southwest wind 6 to 9 mph becoming northwest after midnight. Chance of precipitation is 30%.
Monday
Sunny, with a high near 68. North wind 6 to 8 mph.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
A slight chance of showers after 3pm. Mostly sunny, with a high near 67. Chance of precipitation is 20%.
Tuesday Night
A chance of showers, mainly after 10pm. Mostly cloudy, with a low around 58. Chance of precipitation is 30%.
Wednesday
A chance of showers. Partly sunny, with a high near 67. Chance of precipitation is 40%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 40%.
Thursday
A chance of showers. Mostly cloudy, with a high near 68. Chance of precipitation is 30%.
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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:
5:43 am EDT Aug 28, 2026
Forecast Valid:
10am EDT Aug 28, 2026-6pm EDT Sep 3, 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