I-79 weather conditions near Washington, Pennsylvania
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Overcast 60°F 2026-09-22T10:56:00-04:00 
Today 2026-09-22, Chance Showers and Patchy Fog. A chance of showers. Patchy fog. Otherwise, mostly cloudy, with a high near 63. East wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.Tonight 2026-09-22, Showers Likely and Patchy Fog. Showers likely, mainly after 3am. Patchy fog after 9pm. Otherwise, cloudy, with a low around 53. East wind 11 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
- Wednesday 2026-09-23, Chance Showers and Patchy Fog. A chance of showers before 2pm, then a slight chance of showers and thunderstorms between 2pm and 5pm, then a slight chance of thunderstorms after 5pm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 63. East wind around 15 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night 2026-09-23, Slight Chance Showers. A slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 50. East wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Thursday 2026-09-24, Partly Sunny. Partly sunny, with a high near 65. East wind 9 to 11 mph.
Thursday Night 2026-09-24, Mostly Clear. Mostly clear, with a low around 45.
Friday 2026-09-25, Sunny. Sunny, with a high near 67.- Friday Night 2026-09-25, Mostly Clear. Mostly clear, with a low around 47.
- Saturday 2026-09-26, Sunny. Sunny, with a high near 68.
- Saturday Night 2026-09-26, Mostly Clear. Mostly clear, with a low around 48.
- Sunday 2026-09-27, Sunny. Sunny, with a high near 70.
Sunday Night 2026-09-27, Partly Cloudy. Partly cloudy, with a low around 50.
Monday 2026-09-28, Mostly Sunny. Mostly sunny, with a high near 73.