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

Tracking Atmospheric River for the West Coast; Space Weather Storming Continues

An atmospheric river will bring threats of gusty to high winds and heavy rainfall to California mainly Thursday into Saturday which may bring areas of flooding and wind damage. Heavy snow will be possible over the Sierra Nevada mountains Thursday into Friday associated with the atmospheric river. Minor to severe geomagnetic storming (space weather) is expected to continue into early Thursday. Read More >

Current conditions at

Andover, Aeroflex-Andover Airport (K12N)

Lat: 41.01°NLon: 74.74°WElev: 584ft.

45°F

7°C

Humidity 49%
Wind Speed Vrbl 6 mph
Barometer 29.71 in (1006.9 mb)
Dewpoint 27°F (-3°C)
Visibility NA
Wind Chill42°F (6°C)
Last update 12 Nov 3:54 pm EST
Extended Forecast for

Portland PA

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 34. West wind around 5 mph.

    Low: 34 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Mostly sunny, with a high near 50. West wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 50 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 31. West wind around 5 mph becoming calm in the evening.

    Low: 31 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 50. Light west wind becoming northwest 5 to 10 mph in the morning.

    High: 50 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 27. Calm wind.

    Low: 27 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 50.

    High: 50 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Rain. Low around 37. Chance of precipitation is 80%.

    Low: 37 °F

    Rain

  • Sunday

    Sunday: A chance of rain before 1pm. Partly sunny, with a high near 57. Chance of precipitation is 40%.

    High: 57 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 34. West wind around 5 mph.
Thursday
Mostly sunny, with a high near 50. West wind 5 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Mostly clear, with a low around 31. West wind around 5 mph becoming calm in the evening.
Friday
Partly sunny, with a high near 50. Light west wind becoming northwest 5 to 10 mph in the morning.
Friday Night
Partly cloudy, with a low around 27. Calm wind.
Saturday
Partly sunny, with a high near 50.
Saturday Night
Rain. Low around 37. Chance of precipitation is 80%.
Sunday
A chance of rain before 1pm. Partly sunny, with a high near 57. Chance of precipitation is 40%.
Sunday Night
Partly cloudy, with a low around 32.
Monday
Mostly sunny, with a high near 47.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Partly sunny, with a high near 48.
Tuesday Night
Mostly cloudy, with a low around 31.
Wednesday
Mostly sunny, with a high near 52.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portland PA
 40.9°N 75.09°W (Elev. 413 ft)
Last Update:
3:47 pm EST Nov 12, 2025
Forecast Valid:
4pm EST Nov 12, 2025-6pm EST Nov 19, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation