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

41°F

5°C

Humidity 70%
Wind Speed NW 8 mph
Barometer 30.06 in (1018.0 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 12 May 2:51 am EDT
Extended Forecast for

Knightville ME

  • Overnight

    Overnight: Mostly clear, with a low around 39. Northwest wind around 5 mph.

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 61. North wind around 5 mph becoming west in the afternoon.

    High: 61 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 40. West wind around 5 mph becoming calm.

    Low: 40 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: A 30 percent chance of showers after 1pm. Mostly cloudy, with a high near 57. Light east wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 57 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Rain likely, mainly between 11pm and 1am. Cloudy, with a low around 47. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    Low: 47 °F

    Rain Likely

  • Thursday

    Thursday: Rain, mainly after 9am. High near 58. Chance of precipitation is 80%.

    High: 58 °F

    Rain

  • Thursday Night

    Thursday Night: Rain. Low around 46. Chance of precipitation is 100%.

    Low: 46 °F

    Rain

  • Friday

    Friday: Rain. High near 58. Chance of precipitation is 90%.

    High: 58 °F

    Rain

  • Friday Night

    Friday Night: Rain likely before 8pm, then a chance of showers between 8pm and 11pm. Mostly cloudy, with a low around 46. Chance of precipitation is 60%.

    Low: 46 °F

    Rain Likely
    then Mostly
    Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 39. Northwest wind around 5 mph.
Tuesday
Increasing clouds, with a high near 61. North wind around 5 mph becoming west in the afternoon.
Tuesday Night
Increasing clouds, with a low around 40. West wind around 5 mph becoming calm.
Wednesday
A 30 percent chance of showers after 1pm. Mostly cloudy, with a high near 57. Light east wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Wednesday Night
Rain likely, mainly between 11pm and 1am. Cloudy, with a low around 47. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Thursday
Rain, mainly after 9am. High near 58. Chance of precipitation is 80%.
Thursday Night
Rain. Low around 46. Chance of precipitation is 100%.
Friday
Rain. High near 58. Chance of precipitation is 90%.
Friday Night
Rain likely before 8pm, then a chance of showers between 8pm and 11pm. Mostly cloudy, with a low around 46. Chance of precipitation is 60%.
Saturday
Mostly sunny, with a high near 69.
Saturday Night
Mostly clear, with a low around 51.
Sunday
Sunny, with a high near 74.
Sunday Night
Partly cloudy, with a low around 50.
Monday
Mostly sunny, with a high near 67.
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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:
2:20 am EDT May 12, 2026
Forecast Valid:
3am EDT May 12, 2026-6pm EDT May 18, 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