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

N/A

Humidity NA
Wind Speed N 7 mph
Barometer 30.26 in
Dewpoint N/A
Visibility 10.00 mi
Last update 24 Mar 12:56 pm EDT
Extended Forecast for

Castine ME

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 37. West wind around 6 mph.

    High: 37 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 30. Southwest wind 11 to 13 mph, with gusts as high as 23 mph.

    Low: 30 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 40. West wind 11 to 14 mph, with gusts as high as 25 mph.

    High: 40 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain after 2am. Mostly cloudy, with a low around 32. South wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 32 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Thursday

    Thursday: Rain likely, mainly between 11am and noon. Mostly cloudy, with a high near 44. South wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 44 °F

    Rain Likely

  • Thursday Night

    Thursday Night: Rain. Low around 34. South 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.

    Low: 34 °F

    Rain

  • Friday

    Friday: Rain likely, mainly before 7am. Mostly sunny, with a high near 39. Breezy, with a northwest wind 18 to 21 mph, with gusts as high as 34 mph. Chance of precipitation is 60%.

    High: 39 °F

    Breezy. Rain
    Likely then
    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 13.

    Low: 13 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 27.

    High: 27 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 37. West wind around 6 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 30. Southwest wind 11 to 13 mph, with gusts as high as 23 mph.
Wednesday
Mostly sunny, with a high near 40. West wind 11 to 14 mph, with gusts as high as 25 mph.
Wednesday Night
A slight chance of rain after 2am. Mostly cloudy, with a low around 32. South wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Thursday
Rain likely, mainly between 11am and noon. Mostly cloudy, with a high near 44. South wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Rain. Low around 34. South 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.
Friday
Rain likely, mainly before 7am. Mostly sunny, with a high near 39. Breezy, with a northwest wind 18 to 21 mph, with gusts as high as 34 mph. Chance of precipitation is 60%.
Friday Night
Mostly clear, with a low around 13.
Saturday
Sunny, with a high near 27.
Saturday Night
Partly cloudy, with a low around 21.
Sunday
Mostly sunny, with a high near 37.
Sunday Night
Partly cloudy, with a low around 29.
Monday
Mostly sunny, with a high near 41.
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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:
4:03 am EDT Mar 24, 2026
Forecast Valid:
2pm EDT Mar 24, 2026-6pm EDT Mar 30, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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