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.

62°F

17°C

Humidity 100%
Wind Speed Calm
Barometer 29.66 in (1004.0 mb)
Dewpoint 62°F (17°C)
Visibility NA
Last update 11 Mar 9:54 pm EDT
Extended Forecast for

Portland PA

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before midnight, then showers likely and possibly a thunderstorm after 3am. Mostly cloudy, with a low around 40. Southwest wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 40 °F

    Showers
    Likely

  • Thursday

    Thursday: Rain and snow before 1pm, then a chance of snow between 1pm and 3pm. Temperature falling to around 39 by noon. Northwest wind around 10 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 46 °F⇓

    Rain then
    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Mostly cloudy during the early evening, then gradual clearing, with a low around 27. Northwest wind around 5 mph becoming calm.

    Low: 27 °F

    Gradual
    Clearing

  • Friday

    Friday: Partly sunny, with a high near 47. Light south wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 30 mph.

    High: 47 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 35. Southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 35 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

  • Sunday

    Sunday: Cloudy, with a high near 50.

    High: 50 °F

    Cloudy

  • Sunday Night

    Sunday Night: Rain, mainly after 2am. Low around 40. Chance of precipitation is 90%.

    Low: 40 °F

    Chance Rain
    then Rain

Detailed Forecast

Tonight
Showers and thunderstorms likely, mainly before midnight, then showers likely and possibly a thunderstorm after 3am. Mostly cloudy, with a low around 40. Southwest wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
Rain and snow before 1pm, then a chance of snow between 1pm and 3pm. Temperature falling to around 39 by noon. Northwest wind around 10 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Thursday Night
Mostly cloudy during the early evening, then gradual clearing, with a low around 27. Northwest wind around 5 mph becoming calm.
Friday
Partly sunny, with a high near 47. Light south wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 30 mph.
Friday Night
Partly cloudy, with a low around 35. Southwest wind around 10 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 50.
Saturday Night
Mostly cloudy, with a low around 29.
Sunday
Cloudy, with a high near 50.
Sunday Night
Rain, mainly after 2am. Low around 40. Chance of precipitation is 90%.
Monday
Rain. High near 63. Chance of precipitation is 90%.
Monday Night
Rain likely. Mostly cloudy, with a low around 26. Chance of precipitation is 60%.
Tuesday
Mostly sunny, with a high near 37.
Tuesday Night
Partly cloudy, with a low around 19.
Wednesday
Sunny, with a high near 38.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portland PA
 40.93°N 75.08°W (Elev. 299 ft)
Last Update:
10:05 pm EDT Mar 11, 2026
Forecast Valid:
10pm EDT Mar 11, 2026-6pm EDT Mar 18, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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