National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Portland, Portland International Jetport (KPWM)

Lat: 43.64°NLon: 70.3°WElev: 72ft.

Mostly Cloudy

89°F

32°C

Humidity 42%
Wind Speed W 12 mph
Barometer 29.84 in (1010.5 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 9 Aug 4:51 pm EDT
Extended Forecast for

Rosemont ME

  • Tonight

    Tonight: Mostly clear, with a low around 64. West wind 5 to 10 mph becoming light northwest in the evening.

    Low: 64 °F

    Mostly Clear

  • Monday

    Monday: Increasing clouds, with a high near 86. Light and variable wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 86 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before 10pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 65. South wind around 5 mph becoming calm in the evening.

    Low: 65 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: Sunny and hot, with a high near 90. Northwest wind 5 to 10 mph.

    High: 90 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 61. Northwest wind around 5 mph.

    Low: 61 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 60%.

    High: 84 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before 8pm, then a chance of showers between 8pm and 11pm. Partly cloudy, with a low around 58. Chance of precipitation is 60%.

    Low: 58 °F

    Showers
    Likely then
    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 64. West wind 5 to 10 mph becoming light northwest in the evening.
Monday
Increasing clouds, with a high near 86. Light and variable wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Monday Night
A 20 percent chance of showers and thunderstorms before 10pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 65. South wind around 5 mph becoming calm in the evening.
Tuesday
Sunny and hot, with a high near 90. Northwest wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 61. Northwest wind around 5 mph.
Wednesday
Sunny, with a high near 86.
Wednesday Night
Partly cloudy, with a low around 61.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 60%.
Thursday Night
Showers and thunderstorms likely before 8pm, then a chance of showers between 8pm and 11pm. Partly cloudy, with a low around 58. Chance of precipitation is 60%.
Friday
Sunny, with a high near 82.
Friday Night
Mostly clear, with a low around 56.
Saturday
Sunny, with a high near 82.
Saturday Night
Mostly clear, with a low around 56.
Sunday
Sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rosemont ME
 43.67°N 70.3°W (Elev. 75 ft)
Last Update:
2:52 pm EDT Aug 9, 2026
Forecast Valid:
5pm EDT Aug 9, 2026-6pm EDT Aug 16, 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