National Weather Service United States Department of Commerce

Heavy rain and mountain snow across the northwestern U.S. this weekend

A Pacific storm system will continue to impact the West Coast through Sunday. Heavy rainfall could lead to flash flooding, river and small stream flooding, as well as mudslides and debris flows, especially over burn scars. At higher elevations, strong winds and heavy snowfall, with accumulations of 1 to 3 feet, could result in hazardous travel through mountain passes.
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Current Conditions

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2 Miles SSW Allentown PA

7 Day Forecast

For More Weather Information:

Philadelphia, PA Local Forecast Office

Overnight

Mostly Cloudy

Mostly
Cloudy

Low: 24 °F

Sunday

Partly Sunny

Partly
Sunny

High: 39 °F

Sunday
Night

Partly Cloudy

Partly
Cloudy

Low: 25 °F

Monday

Chance Rain/Snow Chance for Measurable Precipitation 40%

Chance
Rain/Snow

High: 42 °F

Monday
Night

Chance Rain Chance for Measurable Precipitation 50%

Chance
Rain

Low: 34 °F

Tuesday

Chance Rain Chance for Measurable Precipitation 50%

Chance
Rain

High: 48 °F

Tuesday
Night

Rain Likely Chance for Measurable Precipitation 60%

Rain
Likely

Low: 41 °F

Wednesday

Rain Chance for Measurable Precipitation 100%

Rain

High: 56 °F

Wednesday
Night

Showers Likely Chance for Measurable Precipitation 70%

Showers
Likely

Low: 38 °F

Detailed Forecast

  • Overnight Mostly cloudy, with a low around 24. Calm wind.
  • Sunday Partly sunny, with a high near 39. Light and variable wind.
  • Sunday Night Partly cloudy, with a low around 25. Calm wind.
  • Monday A chance of snow before 1pm, then a chance of rain. Partly sunny, with a high near 42. Light southeast wind. Chance of precipitation is 40%. Little or no snow accumulation expected.
  • Monday Night A chance of rain. Cloudy, with a low around 34. Calm wind. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
  • Tuesday A chance of rain. Cloudy, with a high near 48. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
  • Tuesday Night Rain likely. Cloudy, with a low around 41. Chance of precipitation is 60%.
  • Wednesday Rain. High near 56. Chance of precipitation is 100%.
  • Wednesday Night Showers likely. Cloudy, with a low around 38. Chance of precipitation is 70%.
  • Christmas Day Partly sunny, with a high near 44.
  • Thursday Night Partly cloudy, with a low around 30.
  • Friday Mostly sunny, with a high near 46.
  • Friday Night Partly cloudy, with a low around 31.
  • Saturday Partly sunny, with a high near 44.