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.

Overcast

66°F

19°C

Humidity 87%
Wind Speed S 13 mph
Barometer 29.91 in
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 17 Aug 8:56 am EDT
Extended Forecast for

Waltham ME

  • Today

    Today: Scattered showers, mainly before 2pm. Cloudy, with a high near 67. South wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 67 °F

    Scattered
    Showers

  • Tonight

    Tonight: Scattered showers, mainly after 8pm. Patchy fog. Otherwise, cloudy, with a low around 60. South wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 60 °F

    Scattered
    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: Isolated showers, then scattered showers and thunderstorms after 2pm. Mostly cloudy, with a high near 74. East wind 3 to 6 mph. Chance of precipitation is 30%.

    High: 74 °F

    Scattered
    Showers

  • Tuesday Night

    Tuesday Night: Scattered showers, mainly before 11pm. Mostly cloudy, with a low around 60. Light and variable wind. Chance of precipitation is 40%.

    Low: 60 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 80. Calm wind becoming southwest 5 to 9 mph in the afternoon.

    High: 80 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 2am. Otherwise, partly cloudy, with a low around 59. South wind 5 to 7 mph becoming calm after midnight.

    Low: 59 °F

    Partly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: A slight chance of showers after 3pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 78. Northwest wind 3 to 7 mph. Chance of precipitation is 20%.

    High: 78 °F

    Patchy Fog
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

Detailed Forecast

Today
Scattered showers, mainly before 2pm. Cloudy, with a high near 67. South wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Scattered showers, mainly after 8pm. Patchy fog. Otherwise, cloudy, with a low around 60. South wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Isolated showers, then scattered showers and thunderstorms after 2pm. Mostly cloudy, with a high near 74. East wind 3 to 6 mph. Chance of precipitation is 30%.
Tuesday Night
Scattered showers, mainly before 11pm. Mostly cloudy, with a low around 60. Light and variable wind. Chance of precipitation is 40%.
Wednesday
Partly sunny, with a high near 80. Calm wind becoming southwest 5 to 9 mph in the afternoon.
Wednesday Night
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 59. South wind 5 to 7 mph becoming calm after midnight.
Thursday
A slight chance of showers after 3pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 78. Northwest wind 3 to 7 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 56.
Friday
Sunny, with a high near 80.
Friday Night
Mostly clear, with a low around 55.
Saturday
A slight chance of showers. Mostly sunny, with a high near 78. Chance of precipitation is 20%.
Saturday Night
A slight chance of showers. Mostly cloudy, with a low around 56. Chance of precipitation is 20%.
Sunday
A chance of showers. Partly sunny, with a high near 75. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Waltham ME
 44.71°N 68.34°W (Elev. 374 ft)
Last Update:
7:47 am EDT Aug 17, 2026
Forecast Valid:
9am EDT Aug 17, 2026-6pm EDT Aug 23, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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