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

41°F

5°C

Humidity 86%
Wind Speed Calm
Barometer 29.97 in (1015.0 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 30 Mar 11:56 pm EDT
Extended Forecast for

Castine ME

  • Overnight

    Overnight: Mostly cloudy, with a low around 37. West wind around 6 mph becoming calm.

    Low: 37 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Rain and snow, possibly mixed with sleet before 1pm, then a chance of rain and sleet between 1pm and 3pm, then a chance of rain after 3pm. High near 37. Northeast wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. Little or no snow and sleet accumulation expected.

    High: 37 °F

    Wintry Mix

  • Tuesday Night

    Tuesday Night: Rain, mainly after 7pm. Patchy fog between 2am and 3am. Low around 33. East wind around 7 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 33 °F

    Rain and
    Patchy Fog

  • Wednesday

    Wednesday: A chance of rain. Mostly cloudy, with a high near 45. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 45 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A slight chance of rain before 1am, then a slight chance of rain after 2am. Mostly cloudy, with a low around 29. North wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    Low: 29 °F

    Slight Chance
    Rain

  • Thursday

    Thursday: A chance of snow before 3pm, then a chance of snow and sleet. Mostly cloudy, with a high near 36. Northeast wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 36 °F

    Slight Chance
    Snow then
    Chance
    Snow/Sleet

  • Thursday Night

    Thursday Night: A chance of rain, snow, and sleet before 8pm, then rain and snow likely. Cloudy, with a low around 32. East wind 6 to 8 mph. Chance of precipitation is 60%.

    Low: 32 °F

    Wintry Mix
    Likely

  • Friday

    Friday: Rain likely. Cloudy, with a high near 44. Chance of precipitation is 70%.

    High: 44 °F

    Rain Likely

  • Friday Night

    Friday Night: A chance of rain, mainly before 4am. Mostly cloudy, with a low around 38. Chance of precipitation is 50%.

    Low: 38 °F

    Chance Rain

Detailed Forecast

Overnight
Mostly cloudy, with a low around 37. West wind around 6 mph becoming calm.
Tuesday
Rain and snow, possibly mixed with sleet before 1pm, then a chance of rain and sleet between 1pm and 3pm, then a chance of rain after 3pm. High near 37. Northeast wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. Little or no snow and sleet accumulation expected.
Tuesday Night
Rain, mainly after 7pm. Patchy fog between 2am and 3am. Low around 33. East wind around 7 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
A chance of rain. Mostly cloudy, with a high near 45. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
A slight chance of rain before 1am, then a slight chance of rain after 2am. Mostly cloudy, with a low around 29. North wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Thursday
A chance of snow before 3pm, then a chance of snow and sleet. Mostly cloudy, with a high near 36. Northeast wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Thursday Night
A chance of rain, snow, and sleet before 8pm, then rain and snow likely. Cloudy, with a low around 32. East wind 6 to 8 mph. Chance of precipitation is 60%.
Friday
Rain likely. Cloudy, with a high near 44. Chance of precipitation is 70%.
Friday Night
A chance of rain, mainly before 4am. Mostly cloudy, with a low around 38. Chance of precipitation is 50%.
Saturday
A slight chance of rain or freezing rain before 9am, then a slight chance of rain after 3pm. Mostly cloudy, with a high near 43. Chance of precipitation is 20%.
Saturday Night
A chance of rain. Cloudy, with a low around 35. Chance of precipitation is 40%.
Sunday
Rain likely. Mostly cloudy, with a high near 47. Chance of precipitation is 60%.
Sunday Night
Rain likely. Mostly cloudy, with a low around 39. Chance of precipitation is 60%.
Monday
A chance of rain. Partly sunny, with a high near 46. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Castine ME
 44.38°N 68.8°W (Elev. 0 ft)
Last Update:
8:37 pm EDT Mar 30, 2026
Forecast Valid:
12am EDT Mar 31, 2026-6pm EDT Apr 6, 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