Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Current conditions at

Allentown, Lehigh Valley International Airport (KABE)

Lat: 40.65°NLon: 75.45°WElev: 384ft.

A Few Clouds

29°F

-2°C

Humidity 66%
Wind Speed SW 8 mph
Barometer 29.85 in (1011.2 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 10 Dec 2:51 am EST
Extended Forecast for

5 Miles NNW Chapman PA

Winter Weather Advisory December 10, 06:00am until December 10, 06:00pm
Click here for hazard details and duration
Winter Weather Advisory
  • Overnight

    Overnight: Cloudy, with a low around 21. Southwest wind around 10 mph.

    Low: 21 °F

    Cloudy

  • Wednesday

    Wednesday: Snow and freezing rain likely before 1pm, then rain and snow.  High near 37. South wind 5 to 15 mph.  Chance of precipitation is 100%. Little or no ice accumulation expected.  New snow accumulation of less than one inch possible.

    High: 37 °F

    Chance Wintry
    Mix then
    Rain/Snow

  • Wednesday Night

    Wednesday Night: A chance of rain and snow before midnight, then a slight chance of rain between midnight and 1am.  Cloudy, then gradually becoming partly cloudy, with a low around 23. Southwest wind 10 to 15 mph becoming northwest after midnight. Winds could gust as high as 25 mph.  Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    Low: 23 °F

    Chance
    Rain/Snow
    then Slight
    Chance Rain

  • Thursday

    Thursday: A slight chance of snow showers after 4pm.  Partly sunny, with a high near 31. West wind around 15 mph, with gusts as high as 35 mph.  Chance of precipitation is 20%.

    High: 31 °F

    Mostly Sunny
    then Slight
    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: A slight chance of snow showers before 10pm.  Partly cloudy, with a low around 20. West wind 10 to 15 mph, with gusts as high as 30 mph.  Chance of precipitation is 20%.

    Low: 20 °F

    Slight Chance
    Snow Showers
    then Partly
    Cloudy

  • Friday

    Friday: Partly sunny, with a high near 32.

    High: 32 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of snow.  Mostly cloudy, with a low around 18. Chance of precipitation is 40%.

    Low: 18 °F

    Chance Snow

  • Saturday

    Saturday: Mostly cloudy, with a high near 34.

    High: 34 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A chance of snow after 1am.  Mostly cloudy, with a low around 20. Chance of precipitation is 40%.

    Low: 20 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

Overnight
Cloudy, with a low around 21. Southwest wind around 10 mph.
Wednesday
Snow and freezing rain likely before 1pm, then rain and snow. High near 37. South wind 5 to 15 mph. Chance of precipitation is 100%. Little or no ice accumulation expected. New snow accumulation of less than one inch possible.
Wednesday Night
A chance of rain and snow before midnight, then a slight chance of rain between midnight and 1am. Cloudy, then gradually becoming partly cloudy, with a low around 23. Southwest wind 10 to 15 mph becoming northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Thursday
A slight chance of snow showers after 4pm. Partly sunny, with a high near 31. West wind around 15 mph, with gusts as high as 35 mph. Chance of precipitation is 20%.
Thursday Night
A slight chance of snow showers before 10pm. Partly cloudy, with a low around 20. West wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Friday
Partly sunny, with a high near 32.
Friday Night
A chance of snow. Mostly cloudy, with a low around 18. Chance of precipitation is 40%.
Saturday
Mostly cloudy, with a high near 34.
Saturday Night
A chance of snow after 1am. Mostly cloudy, with a low around 20. Chance of precipitation is 40%.
Sunday
Mostly cloudy, with a high near 28.
Sunday Night
Partly cloudy, with a low around 13.
Monday
Mostly sunny, with a high near 26.
Monday Night
Mostly cloudy, with a low around 14.
Tuesday
Partly sunny, with a high near 29.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNW Chapman PA
 40.83°N 75.43°W (Elev. 915 ft)
1:47 am EST Dec 10, 2025
3am EST Dec 10, 2025-6pm EST Dec 16, 2025
 
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