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

Andover, Aeroflex-Andover Airport (K12N)

Lat: 41.01°NLon: 74.74°WElev: 584ft.

58°F

14°C

Humidity 33%
Wind Speed NW 9 mph
Barometer 30.17 in (1021.7 mb)
Dewpoint 29°F (-2°C)
Visibility NA
Last update 12 May 11:54 am EDT
Extended Forecast for

Portland PA

  • This Afternoon

    This Afternoon: Sunny, with a high near 68. Calm wind becoming northwest around 5 mph.

    High: 68 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 46. Calm wind.

    Low: 46 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: A chance of showers before 4pm, then a slight chance of showers after 5pm. Mostly cloudy, with a high near 70. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 70 °F

    Cloudy then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then showers after 2am. Low around 50. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 50 °F

    Showers

  • Thursday

    Thursday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 65. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 65 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers, mainly after 2am. Mostly cloudy, with a low around 47. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 47 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers before 8am. Mostly sunny, with a high near 68. Chance of precipitation is 30%.

    High: 68 °F

    Chance
    Showers then
    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 68. Calm wind becoming northwest around 5 mph.
Tonight
Increasing clouds, with a low around 46. Calm wind.
Wednesday
A chance of showers before 4pm, then a slight chance of showers after 5pm. Mostly cloudy, with a high near 70. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A chance of showers and thunderstorms before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then showers after 2am. Low around 50. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 65. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers, mainly after 2am. Mostly cloudy, with a low around 47. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A chance of showers before 8am. Mostly sunny, with a high near 68. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 49.
Saturday
Sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 56.
Sunday
Sunny, with a high near 83.
Sunday Night
Partly cloudy, with a low around 57.
Monday
Mostly sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portland PA
 40.93°N 75.08°W (Elev. 299 ft)
Last Update:
7:49 am EDT May 12, 2026
Forecast Valid:
12pm EDT May 12, 2026-6pm EDT May 18, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation