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.

Fair

62°F

17°C

Humidity 86%
Wind Speed E 5 mph
Barometer 29.90 in (1012.5 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 20 Aug 3:51 am EDT
Extended Forecast for

Knightville ME

  • Today

    Today: Increasing clouds, with a high near 78. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 78 °F

    Increasing
    Clouds

  • Tonight

    Tonight: A slight chance of showers between 9pm and 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 59. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 20%.

    Low: 59 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Friday

    Friday: Sunny, with a high near 74. North wind around 5 mph becoming southeast in the afternoon.

    High: 74 °F

    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 58. Calm wind becoming northeast around 5 mph.

    Low: 58 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Showers likely, mainly after 3pm. Mostly cloudy, with a high near 73. East wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    High: 73 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers, mainly before 2am. Low around 60. Chance of precipitation is 80%.

    Low: 60 °F

    Showers

  • Sunday

    Sunday: A 40 percent chance of showers. Mostly cloudy, with a high near 78.

    High: 78 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 62.

    Low: 62 °F

    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 78. Calm wind becoming southeast around 5 mph in the afternoon.
Tonight
A slight chance of showers between 9pm and 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 59. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 20%.
Friday
Sunny, with a high near 74. North wind around 5 mph becoming southeast in the afternoon.
Friday Night
Increasing clouds, with a low around 58. Calm wind becoming northeast around 5 mph.
Saturday
Showers likely, mainly after 3pm. Mostly cloudy, with a high near 73. East wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Saturday Night
Showers, mainly before 2am. Low around 60. Chance of precipitation is 80%.
Sunday
A 40 percent chance of showers. Mostly cloudy, with a high near 78.
Sunday Night
A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 62.
Monday
Mostly sunny, with a high near 79.
Monday Night
Mostly clear, with a low around 58.
Tuesday
Sunny, with a high near 78.
Tuesday Night
Mostly clear, with a low around 58.
Wednesday
Sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Knightville ME
 43.64°N 70.24°W (Elev. 16 ft)
Last Update:
2:25 am EDT Aug 20, 2026
Forecast Valid:
4am EDT Aug 20, 2026-6pm EDT Aug 26, 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