National Weather Service United States Department of Commerce

Heavy rain and mountain snow across the northwestern U.S. on Saturday

Another Pacific system will impact the West Coast today. Heavy rainfall could lead to flash flooding, river and small stream flooding as well as mudslides and debris flows, especially over burn scars. Strong winds and heavy elevation snowfall, with accumulations of 1 to 3 feet, could result in hazardous travel through mountain passes.
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Current Conditions

Allegheny County

Zone Forecast

  • This Afternoon Cloudy. Highs in the lower 30s. North winds around 5 mph early...becoming light and variable.
  • Tonight Cloudy. Lows in the mid 20s. Light and variable winds.
  • Sunday Mostly cloudy. Highs in the upper 30s. Southwest winds around 5 mph.
  • Sunday Night Partly cloudy in the evening...then becoming mostly cloudy. Lows in the upper 20s. Southeast winds around 5 mph.
  • Monday Mostly cloudy. Highs in the mid 40s. Southeast winds 5 to 10 mph with gusts up to 25 mph.
  • Monday Night Cloudy. Not as cold with lows in the upper 30s.
  • Tuesday Mostly cloudy. A chance of showers in the afternoon. Not as cool with highs in the mid 50s. Chance of rain 30 percent.
  • Tuesday Night And Wednesday Rain likely. Lows in the mid 40s. Highs in the lower 50s. Chance of rain 70 percent.
  • Wednesday Night Cloudy with a chance of rain showers. A chance of snow showers after midnight. Colder with lows in the lower 30s. Chance of precipitation 50 percent.
  • Christmas Day Cloudy with a 30 percent chance of snow showers. Breezy and much colder. Near steady temperature in the mid 30s.
  • Thursday Night And Friday Mostly cloudy. Lows in the upper 20s. Highs in the lower 40s.