I-81 weather conditions near Williamson, Pennsylvania
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Fair 37°F 2025-11-18T01:53:00-05:00 
Overnight 2025-11-18, Mostly Clear. Mostly clear, with a low around 28. Calm wind.
Tuesday 2025-11-18, Chance Rain. A chance of rain, mainly after noon. Increasing clouds, with a high near 45. Light southwest wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night 2025-11-18, Rain. Rain. Low around 37. Calm wind. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday 2025-11-19, Mostly Cloudy. Mostly cloudy, with a high near 50. Calm wind.
Wednesday Night 2025-11-19, Cloudy. Cloudy, with a low around 38. Calm wind.
Thursday 2025-11-20, Cloudy. Cloudy, with a high near 51.Thursday Night 2025-11-20, Cloudy then Chance Rain. A chance of rain after 1am. Cloudy, with a low around 43. Chance of precipitation is 40%.
- Friday 2025-11-21, Chance Rain. A chance of rain. Mostly cloudy, with a high near 59. Chance of precipitation is 40%.
Friday Night 2025-11-21, Chance Rain. A chance of rain. Mostly cloudy, with a low around 39. Chance of precipitation is 50%.
Saturday 2025-11-22, Chance Rain. A chance of rain. Partly sunny, with a high near 53. Chance of precipitation is 30%.
Saturday Night 2025-11-22, Chance Rain. A chance of rain. Partly cloudy, with a low around 32. Chance of precipitation is 30%.
Sunday 2025-11-23, Mostly Sunny. Mostly sunny, with a high near 54.- Sunday Night 2025-11-23, Partly Cloudy. Partly cloudy, with a low around 35.
- Monday 2025-11-24, Mostly Sunny. Mostly sunny, with a high near 58.