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

45°F

7°C

Humidity 83%
Wind Speed S 13 mph
Barometer 30.09 in (1019.3 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 10 Apr 7:56 pm EDT
Extended Forecast for

Castine ME

  • Tonight

    Tonight: Rain likely, mainly after 2am. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 40. South wind 8 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 40 °F

    Slight Chance
    Rain then
    Rain Likely
    and Patchy
    Fog

  • Saturday

    Saturday: A chance of showers, mainly before 7am. Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 47. Northwest wind 14 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 30%.

    High: 47 °F

    Chance
    Showers and
    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 34. Northwest wind 9 to 14 mph, with gusts as high as 25 mph.

    Low: 34 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 48. Northwest wind 8 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.

    High: 48 °F

    Sunny

  • Sunday Night

    Sunday Night: Rain, mainly after 2am. Patchy fog after 2am. Low around 38. South wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Chance Rain
    then Rain and
    Patchy Fog

  • Monday

    Monday: Rain. High near 52. Southwest wind 16 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 52 °F

    Rain

  • Monday Night

    Monday Night: Rain likely, mainly before 10pm. Mostly cloudy, with a low around 48. Southwest wind 9 to 11 mph. Chance of precipitation is 60%.

    Low: 48 °F

    Rain Likely
    then Slight
    Chance Rain

  • Tuesday

    Tuesday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain, mainly after 9pm. Mostly cloudy, with a low around 44. Chance of precipitation is 40%.

    Low: 44 °F

    Chance Rain

Detailed Forecast

Tonight
Rain likely, mainly after 2am. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 40. South wind 8 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
A chance of showers, mainly before 7am. Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 47. Northwest wind 14 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 30%.
Saturday Night
Mostly clear, with a low around 34. Northwest wind 9 to 14 mph, with gusts as high as 25 mph.
Sunday
Sunny, with a high near 48. Northwest wind 8 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Rain, mainly after 2am. Patchy fog after 2am. Low around 38. South wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Rain. High near 52. Southwest wind 16 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 48. Southwest wind 9 to 11 mph. Chance of precipitation is 60%.
Tuesday
Mostly sunny, with a high near 58.
Tuesday Night
A chance of rain, mainly after 9pm. Mostly cloudy, with a low around 44. Chance of precipitation is 40%.
Wednesday
A chance of rain. Mostly cloudy, with a high near 51. Chance of precipitation is 30%.
Wednesday Night
A chance of rain. Cloudy, with a low around 46. Chance of precipitation is 50%.
Thursday
A chance of rain. Mostly cloudy, with a high near 57. Chance of precipitation is 30%.
Thursday Night
A slight chance of rain. Mostly cloudy, with a low around 43. Chance of precipitation is 20%.
Friday
A slight chance of rain. Partly sunny, with a high near 55. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
Castine ME
 44.38°N 68.8°W (Elev. 0 ft)
Last Update:
5:28 pm EDT Apr 10, 2026
Forecast Valid:
8pm EDT Apr 10, 2026-6pm EDT Apr 17, 2026
 
Forecast Discussion
 
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Additional Resources

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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