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

51°F

11°C

Humidity 80%
Wind Speed Calm
Barometer 30.04 in (1017.3 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 17 Apr 8:56 pm EDT
Extended Forecast for

Waltham ME

  • Tonight

    Tonight: Patchy fog after 5am. Otherwise, mostly clear, with a low around 41. Northeast wind around 5 mph.

    Low: 41 °F

    Clear then
    Patchy Fog

  • Saturday

    Saturday: Areas of fog before 8am. Otherwise, sunny, then becoming mostly cloudy during the afternoon, with a high near 58. East wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 58 °F

    Areas Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: A chance of showers before 11pm, then a chance of rain, mainly between 11pm and 5am. Areas of fog after 1am. Otherwise, cloudy, with a low around 40. Southeast wind 5 to 7 mph. Chance of precipitation is 30%.

    Low: 40 °F

    Chance
    Showers and
    Areas Fog

  • Sunday

    Sunday: Rain, mainly after noon. Areas of fog. High near 45. South wind 6 to 9 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 45 °F

    Chance Rain
    and Areas Fog
    then Rain and
    Areas Fog

  • Sunday Night

    Sunday Night: Rain and snow before 3am, then a slight chance of rain between 3am and 5am, then a slight chance of rain and snow after 5am. Low around 30. West wind around 9 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 30 °F

    Rain then
    Chance
    Rain/Snow

  • Monday

    Monday: Mostly sunny, with a high near 48. West wind 9 to 11 mph, with gusts as high as 22 mph.

    High: 48 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 26. North wind 3 to 5 mph.

    Low: 26 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 47.

    High: 47 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of rain and snow after 1am. Partly cloudy, with a low around 31. Chance of precipitation is 20%.

    Low: 31 °F

    Partly Cloudy
    then Slight
    Chance
    Rain/Snow

Detailed Forecast

Tonight
Patchy fog after 5am. Otherwise, mostly clear, with a low around 41. Northeast wind around 5 mph.
Saturday
Areas of fog before 8am. Otherwise, sunny, then becoming mostly cloudy during the afternoon, with a high near 58. East wind 6 to 10 mph, with gusts as high as 20 mph.
Saturday Night
A chance of showers before 11pm, then a chance of rain, mainly between 11pm and 5am. Areas of fog after 1am. Otherwise, cloudy, with a low around 40. Southeast wind 5 to 7 mph. Chance of precipitation is 30%.
Sunday
Rain, mainly after noon. Areas of fog. High near 45. South wind 6 to 9 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Rain and snow before 3am, then a slight chance of rain between 3am and 5am, then a slight chance of rain and snow after 5am. Low around 30. West wind around 9 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Monday
Mostly sunny, with a high near 48. West wind 9 to 11 mph, with gusts as high as 22 mph.
Monday Night
Partly cloudy, with a low around 26. North wind 3 to 5 mph.
Tuesday
Sunny, with a high near 47.
Tuesday Night
A slight chance of rain and snow after 1am. Partly cloudy, with a low around 31. Chance of precipitation is 20%.
Wednesday
A chance of rain. Partly sunny, with a high near 49. Chance of precipitation is 30%.
Wednesday Night
A slight chance of rain. Partly cloudy, with a low around 32. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 53.
Thursday Night
A slight chance of rain. Mostly cloudy, with a low around 34. Chance of precipitation is 20%.
Friday
Partly sunny, with a high near 53.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Waltham ME
 44.71°N 68.34°W (Elev. 374 ft)
Last Update:
4:03 pm EDT Apr 17, 2026
Forecast Valid:
9pm EDT Apr 17, 2026-6pm EDT Apr 24, 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