National Weather Service United States Department of Commerce

Unsettled weather moving into the western and central U.S.

Increasing moisture and colder air will filter into the Pacific Northwest Friday and into Saturday. Expect rain to start near the coast and then begin to spread steadily to the south and east into the interior mountains as snow Friday into Saturday. Enough moisture will be pushed eastward to also see snow in the central and southern Rockies and adjacent Plains Friday.
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Hazardous Weather Conditions

Current Conditions

Allegheny County

Zone Forecast

  • Today Sunny. Highs around 15. Very cold. Northwest winds 5 to 10 mph.
  • Tonight Mostly clear. Lows around 4 below. Frigid. Northwest winds around 5 mph in the evening...becoming light and variable.
  • Saturday Mostly sunny. Highs in the lower 20s. Light and variable winds...becoming east around 5 mph in the afternoon.
  • Saturday Night Partly cloudy in the evening...then mostly cloudy with a chance of snow after midnight. Little or no snow accumulation. Not as cold with lows around 12. Temperature rising to around 17 after midnight. Southeast winds around 5 mph. Chance of snow 40 percent.
  • Sunday Snow likely in the morning...then rain and snow in the afternoon. Snow accumulation possible. Not as cold with highs in the upper 30s. South winds around 5 mph. Chance of precipitation 90 percent.
  • Sunday Night Rain. Snow likely after midnight. Little or no additional snow accumulation. Not as cold with lows in the upper 20s. Chance of precipitation near 100 percent.
  • Monday And Monday Night Mostly cloudy with a 50 percent chance of snow. Highs in the lower 30s. Lows 15 to 20.
  • Tuesday Snow likely in the morning...then rain in the afternoon. Not as cold with highs in the mid 40s. Chance of precipitation 80 percent.
  • Tuesday Night Rain. Not as cold. Near steady temperature in the mid 40s. Chance of rain 80 percent.
  • Wednesday Mostly cloudy. Rain likely...mainly in the morning. Highs in the mid 40s. Chance of rain 70 percent.
  • Wednesday Night A chance of rain in the evening. Mostly cloudy with a chance of snow. Much colder with lows in the lower 20s. Chance of precipitation 50 percent.
  • Thursday Partly sunny with a chance of snow in the morning... Then mostly cloudy in the afternoon. Colder with highs around 30. Chance of snow 30 percent.