I-78 weather conditions near Jonestown, Pennsylvania
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Light Rain Fog/Mist 63°F 2025-06-16T13:56:00-04:00 
This Afternoon 2025-06-16, Chance Showers. A chance of showers. Cloudy, with a high near 65. East wind around 6 mph. Chance of precipitation is 30%.
Tonight 2025-06-16, Chance Showers. A chance of showers, mainly after 3am. Cloudy, with a low around 61. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Tuesday 2025-06-17, Chance Showers. A chance of showers. Cloudy, with a high near 74. Southeast wind 3 to 7 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night 2025-06-17, Showers Likely. Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Cloudy, with a low around 67. Southeast wind around 5 mph becoming calm after midnight. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.Wednesday 2025-06-18, Chance Showers then Showers Likely. A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 84. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night 2025-06-18, Showers Likely then Slight Chance T-storms. Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 69. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Juneteenth 2025-06-19, Chance Showers then Showers Likely. Showers likely, mainly after 2pm. Mostly sunny, with a high near 88. Chance of precipitation is 70%.
Thursday Night 2025-06-19, Showers Likely then Mostly Clear. Showers likely before 8pm. Partly cloudy, with a low around 62. Chance of precipitation is 60%.
Friday 2025-06-20, Sunny. Sunny, with a high near 84.
Friday Night 2025-06-20, Partly Cloudy. Partly cloudy, with a low around 62.
Saturday 2025-06-21, Mostly Sunny. Mostly sunny, with a high near 86.
Saturday Night 2025-06-21, Mostly Cloudy. Mostly cloudy, with a low around 67.
Sunday 2025-06-22, Hot. Mostly sunny and hot, with a high near 92.