I-99 weather conditions near Duncansville, Pennsylvania
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Fair 68°F 2025-06-18T22:53:00-04:00 
Tonight 2025-06-18, Chance Showers. A chance of showers before 1am. Partly cloudy, with a low around 67. South wind 3 to 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.Juneteenth 2025-06-19, Chance T-storms then T-storms. A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 80. Southwest wind 8 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night 2025-06-19, T-storms then Slight Chance Showers. Showers and possibly a thunderstorm before 8pm, then a slight chance of showers between 8pm and 2am. Low around 60. Northwest wind 6 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday 2025-06-20, Mostly Sunny. Mostly sunny, with a high near 82. West wind 7 to 10 mph.- Friday Night 2025-06-20, Partly Cloudy. Partly cloudy, with a low around 63. West wind around 6 mph becoming calm in the evening.
- Saturday 2025-06-21, Mostly Sunny. Mostly sunny, with a high near 87.
- Saturday Night 2025-06-21, Partly Cloudy. Partly cloudy, with a low around 68.
Sunday 2025-06-22, Hot. Sunny and hot, with a high near 92.
Sunday Night 2025-06-22, Mostly Clear. Mostly clear, with a low around 71.- Monday 2025-06-23, Hot. Sunny and hot, with a high near 94.
- Monday Night 2025-06-23, Mostly Clear. Mostly clear, with a low around 72.
- Tuesday 2025-06-24, Hot. Sunny and hot, with a high near 95.
- Tuesday Night 2025-06-24, Partly Cloudy. Partly cloudy, with a low around 72.
Wednesday 2025-06-25, Sunny then Chance Showers. A chance of showers. Sunny and hot, with a high near 92. Chance of precipitation is 30%.