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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Patterson Heights PA

7 Day Forecast

For More Weather Information:

Pittsburgh, PA Local Forecast Office

Overnight

Cloudy

Cloudy

Low: 25 °F

Sunday

Mostly Cloudy

Mostly
Cloudy

High: 36 °F

Sunday
Night

Partly Cloudy

Partly
Cloudy

Low: 25 °F

Monday

Mostly Cloudy

Mostly
Cloudy

High: 44 °F

Monday
Night

Cloudy

Cloudy

Low: 35 °F

Tuesday

Chance Showers Chance for Measurable Precipitation 40%

Chance
Showers

High: 55 °F

Tuesday
Night

Showers Chance for Measurable Precipitation 80%

Showers

Low: 46 °F

Wednesday

Showers Chance for Measurable Precipitation 80%

Showers

High: 57 °F

Wednesday
Night

Chance Showers Chance for Measurable Precipitation 40%

Chance
Showers

Low: 34 °F

Detailed Forecast

  • Overnight Cloudy, with a low around 25. Calm wind.
  • Sunday Mostly cloudy, with a high near 36. Calm wind.
  • Sunday Night Partly cloudy, with a low around 25. East wind 3 to 7 mph.
  • Monday Mostly cloudy, with a high near 44. Southeast wind 8 to 11 mph.
  • Monday Night Cloudy, with a low around 35. East wind around 10 mph.
  • Tuesday A chance of showers, mainly after noon. Cloudy, with a high near 55. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
  • Tuesday Night Showers, mainly after 9pm. Low around 46. Chance of precipitation is 80%.
  • Wednesday Showers. High near 57. Chance of precipitation is 80%.
  • Wednesday Night A chance of showers. Cloudy, with a low around 34. Breezy. Chance of precipitation is 40%.
  • Christmas Day A chance of snow showers. Cloudy, with a high near 35. Chance of precipitation is 40%.
  • Thursday Night Mostly cloudy, with a low around 28.
  • Friday Mostly cloudy, with a high near 44.
  • Friday Night A chance of rain and snow showers. Mostly cloudy, with a low around 32. Chance of precipitation is 40%.
  • Saturday A chance of rain and snow showers. Cloudy, with a high near 39. Chance of precipitation is 40%.