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Bracing for the Big Chill: Pennsylvania's Upcoming Frosty Weather

USAThursday, December 4, 2025
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A polar vortex is causing a sudden drop in temperatures across the northern United States, with Pennsylvania directly in its path.

Forecast Details

  • Tonight: Low of 23 degrees
  • Thursday: High of 38 degrees
  • Thursday Night: Temperatures could drop to 14 degrees, with wind gusts up to 20 mph

Additional Weather Threats

  • Friday: Chance of precipitation as a storm system moves across the eastern U.S.
  • Potential Impact: Ice and snow from Oklahoma to southern New England by Friday evening.
  • Snow Squalls: Possible in New England and mid-Atlantic states, including New York and northern Pennsylvania.

Good News for Harrisburg

  • Friday: Chance of light snow during the day and overnight.
  • Rest of the Week:
  • Highs: Upper 20s to upper 30s
  • Lows: Low 20s to mid-teens
  • Conditions: Partly sunny to mostly cloudy

Stay Safe

  • Stay informed and check forecasts regularly.
  • Dress appropriately—wind chill can make it feel much colder than the actual temperature.

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