| NWS Forecast for: Jefferson PA Issued by: National Weather Service Pittsburgh, PA Last Update: 2:27 am EDT Jun 23, 2025 |  |
Overnight: Mostly clear, with a low around 71. Calm wind. Monday: Sunny and hot, with a high near 96. Heat index values as high as 103. Calm wind becoming west around 5 mph in the afternoon. Monday Night: Mostly clear, with a low around 72. Calm wind. Tuesday: Sunny and hot, with a high near 95. Heat index values as high as 100. Calm wind becoming west around 5 mph in the afternoon. Tuesday Night: Partly cloudy, with a low around 71. Calm wind. Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny and hot, with a high near 93. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. Wednesday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71. Chance of precipitation is 30%. Thursday: A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 91. Chance of precipitation is 50%. Thursday Night: A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 71. Chance of precipitation is 30%. Friday: Showers likely and possibly a thunderstorm after 2pm. Mostly sunny and hot, with a high near 92. Chance of precipitation is 60%. Friday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 70. Chance of precipitation is 60%. Saturday: Showers and thunderstorms likely. Partly sunny, with a high near 88. Chance of precipitation is 60%. Saturday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 68. Chance of precipitation is 60%. Sunday: A chance of showers and thunderstorms. Mostly sunny, with a high near 89. Chance of precipitation is 50%. | |
| Jefferson PA 39.93°N 80.06°W (Elev. 1037 ft) | |
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