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

Hazardous Weather Conditions

Current conditions at

Portland, Portland International Jetport (KPWM)

Lat: 43.64°NLon: 70.3°WElev: 72ft.

Fair

24°F

-4°C

Humidity 96%
Wind Speed Calm
Barometer 30.31 in (1026.6 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 8 Jan 11:51 pm EST
Extended Forecast for

Thornton Heights ME

  • Overnight

    Overnight: Patchy freezing fog. Mostly clear, with a low around 21. Calm wind.

    Low: 21 °F

    Patchy
    Freezing Fog

  • Friday

    Friday: Patchy freezing fog before 10am. Mostly cloudy, with a high near 45. Light southeast wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 45 °F

    Patchy
    Freezing Fog
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: Showers likely, mainly before 9pm. Cloudy, then gradually becoming partly cloudy, with a low around 33. South wind 5 to 10 mph becoming west after midnight. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 33 °F

    Showers
    Likely then
    Mostly Cloudy

  • Saturday

    Saturday: Increasing clouds, with a high near 43. West wind around 5 mph becoming calm in the morning.

    High: 43 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Rain and snow before 3am, then snow between 3am and 5am, then rain and snow after 5am. Low around 29. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    Low: 29 °F

    Rain/Snow

  • Sunday

    Sunday: Rain, possibly mixed with snow, mainly before 3pm. High near 38. Chance of precipitation is 80%.

    High: 38 °F

    Rain/Snow

  • Sunday Night

    Sunday Night: A 30 percent chance of snow before 11pm. Mostly cloudy, with a low around 23.

    Low: 23 °F

    Chance Snow
    then Mostly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 35.

    High: 35 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 23.

    Low: 23 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Patchy freezing fog. Mostly clear, with a low around 21. Calm wind.
Friday
Patchy freezing fog before 10am. Mostly cloudy, with a high near 45. Light southeast wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Showers likely, mainly before 9pm. Cloudy, then gradually becoming partly cloudy, with a low around 33. South wind 5 to 10 mph becoming west after midnight. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Increasing clouds, with a high near 43. West wind around 5 mph becoming calm in the morning.
Saturday Night
Rain and snow before 3am, then snow between 3am and 5am, then rain and snow after 5am. Low around 29. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Sunday
Rain, possibly mixed with snow, mainly before 3pm. High near 38. Chance of precipitation is 80%.
Sunday Night
A 30 percent chance of snow before 11pm. Mostly cloudy, with a low around 23.
Monday
Mostly sunny, with a high near 35.
Monday Night
Mostly cloudy, with a low around 23.
Tuesday
Partly sunny, with a high near 40.
Tuesday Night
Mostly cloudy, with a low around 27.
Wednesday
Cloudy, with a high near 42.
Wednesday Night
Cloudy, with a low around 23.
Thursday
Mostly cloudy, with a high near 34.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Thornton Heights ME
 43.63°N 70.31°W (Elev. 59 ft)
Last Update:
12:33 am EST Jan 9, 2026
Forecast Valid:
12am EST Jan 9, 2026-6pm EST Jan 15, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation