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.

Fog/Mist

42°F

6°C

Humidity 96%
Wind Speed Calm
Barometer 29.86 in (1011.5 mb)
Dewpoint 41°F (5°C)
Visibility 1.00 mi
Last update 19 Apr 6:56 am EDT
Extended Forecast for

Waltham ME

  • Today

    Today: Rain, mainly after noon. Areas of fog. High near 46. South wind 6 to 9 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 46 °F

    Chance Rain
    and Areas Fog
    then Rain and
    Patchy Fog

  • Tonight

    Tonight: Rain before 10pm, then a chance of rain and snow showers between 10pm and 2am. Areas of fog before 9pm. Low around 29. Northwest wind 9 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 29 °F

    Rain/Snow and
    Areas Fog
    then Slight
    Chance
    Rain/Snow

  • Monday

    Monday: Increasing clouds, with a high near 47. West wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 47 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: Partly cloudy, with a low around 25. North wind around 7 mph.

    Low: 25 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 45. North wind around 6 mph becoming west in the afternoon.

    High: 45 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 28. Southwest wind around 5 mph.

    Low: 28 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers, mainly after 11am. Partly sunny, with a high near 45. South wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 45 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A slight chance of showers. Mostly cloudy, with a low around 33. Chance of precipitation is 20%.

    Low: 33 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers. Partly sunny, with a high near 49. Chance of precipitation is 20%.

    High: 49 °F

    Slight Chance
    Showers

Detailed Forecast

Today
Rain, mainly after noon. Areas of fog. High near 46. South wind 6 to 9 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
Rain before 10pm, then a chance of rain and snow showers between 10pm and 2am. Areas of fog before 9pm. Low around 29. Northwest wind 9 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Monday
Increasing clouds, with a high near 47. West wind 7 to 10 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 25. North wind around 7 mph.
Tuesday
Sunny, with a high near 45. North wind around 6 mph becoming west in the afternoon.
Tuesday Night
Partly cloudy, with a low around 28. Southwest wind around 5 mph.
Wednesday
A chance of showers, mainly after 11am. Partly sunny, with a high near 45. South wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 33. Chance of precipitation is 20%.
Thursday
A slight chance of showers. Partly sunny, with a high near 49. Chance of precipitation is 20%.
Thursday Night
Mostly cloudy, with a low around 32.
Friday
Partly sunny, with a high near 51.
Friday Night
A slight chance of showers. Partly cloudy, with a low around 33. Chance of precipitation is 20%.
Saturday
A slight chance of showers. Partly sunny, with a high near 53. Chance of precipitation is 20%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Waltham ME
 44.73°N 68.33°W (Elev. 449 ft)
Last Update:
6:18 am EDT Apr 19, 2026
Forecast Valid:
7am EDT Apr 19, 2026-6pm EDT Apr 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation