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

38°F

3°C

Humidity 68%
Wind Speed E 10 G 17 mph
Barometer 30.45 in (1031.2 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 4 Apr 5:56 pm EDT
Extended Forecast for

Castine ME

  • Tonight

    Tonight: A slight chance of rain before 2am, then a slight chance of rain and sleet between 2am and 3am, then rain likely after 3am. Mostly cloudy, with a low around 35. Southeast wind 13 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 60%. Little or no sleet accumulation expected.

    Low: 35 °F

    Mostly Cloudy
    then
    Rain/Sleet
    Likely

  • Sunday

    Sunday: Rain, mainly before 5pm. Patchy fog after 10am. High near 43. Southeast wind 10 to 18 mph becoming southwest in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 43 °F

    Rain and
    Patchy Fog

  • Sunday Night

    Sunday Night: A chance of rain, mainly before 8pm. Patchy fog before midnight. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 37. West wind around 9 mph. Chance of precipitation is 30%.

    Low: 37 °F

    Chance Rain
    and Patchy
    Fog then
    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 43. West wind around 15 mph, with gusts as high as 28 mph.

    High: 43 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 30. West wind 5 to 9 mph.

    Low: 30 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of snow. Partly sunny, with a high near 39. North wind 7 to 11 mph becoming south in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 50%.

    High: 39 °F

    Chance Snow

  • Tuesday Night

    Tuesday Night: A slight chance of snow before 10pm. Partly cloudy, with a low around 23. Northwest wind 9 to 11 mph. Chance of precipitation is 20%.

    Low: 23 °F

    Slight Chance
    Snow then
    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 39.

    High: 39 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of rain before 2am, then a slight chance of rain and sleet between 2am and 3am, then rain likely after 3am. Mostly cloudy, with a low around 35. Southeast wind 13 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 60%. Little or no sleet accumulation expected.
Sunday
Rain, mainly before 5pm. Patchy fog after 10am. High near 43. Southeast wind 10 to 18 mph becoming southwest in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
A chance of rain, mainly before 8pm. Patchy fog before midnight. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 37. West wind around 9 mph. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 43. West wind around 15 mph, with gusts as high as 28 mph.
Monday Night
Partly cloudy, with a low around 30. West wind 5 to 9 mph.
Tuesday
A chance of snow. Partly sunny, with a high near 39. North wind 7 to 11 mph becoming south in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 50%.
Tuesday Night
A slight chance of snow before 10pm. Partly cloudy, with a low around 23. Northwest wind 9 to 11 mph. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 39.
Wednesday Night
Mostly clear, with a low around 32.
Thursday
Mostly sunny, with a high near 44. Breezy.
Thursday Night
Mostly cloudy, with a low around 38. Breezy.
Friday
Mostly sunny, with a high near 48.
Friday Night
A slight chance of rain. Partly cloudy, with a low around 36. Chance of precipitation is 20%.
Saturday
A slight chance of rain. Mostly sunny, with a high near 48. 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:
4:03 pm EDT Apr 4, 2026
Forecast Valid:
6pm EDT Apr 4, 2026-6pm EDT Apr 11, 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