Weather forecast for: Jefferson PA
Last Update: 2:22 pm EDT Sep 21, 2026
This Afternoon: A chance of showers and thunderstorms. Cloudy, with a high near 66. Northeast wind around 9 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight: Showers and thunderstorms before midnight, then showers likely and possibly a thunderstorm between midnight and 2am, then showers likely after 2am. Low around 58. Northeast wind 5 to 8 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday: Showers likely before 2pm, then a chance of showers and thunderstorms between 2pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Cloudy, with a high near 66. East wind 6 to 11 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night: Showers and possibly a thunderstorm. Low around 53. East wind 9 to 14 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday: Showers likely, mainly before 2pm. Mostly cloudy, with a high near 63. East wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night: A chance of showers. Mostly cloudy, with a low around 51. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Thursday: Partly sunny, with a high near 65.
Thursday Night: Mostly clear, with a low around 45.
Friday: Sunny, with a high near 66.
Friday Night: Mostly clear, with a low around 45.
Saturday: Sunny, with a high near 67.
Saturday Night: Partly cloudy, with a low around 46.
Sunday: Mostly sunny, with a high near 69.
Sunday Night: Partly cloudy, with a low around 49.
Monday: Mostly sunny, with a high near 73.
WeatherWorld.com
