I-78 weather conditions near Allentown, Pennsylvania
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Fair 79°F 2025-08-23T11:51:00-04:00 
This Afternoon 2025-08-23, Sunny. Sunny, with a high near 82. South wind around 10 mph.
Tonight 2025-08-23, Partly Cloudy. Partly cloudy, with a low around 63. South wind 5 to 10 mph.
Sunday 2025-08-24, Chance Showers. A chance of showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 82. South wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night 2025-08-24, Showers Likely. A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 5am, then showers likely after 5am. Mostly cloudy, with a low around 66. South wind around 5 mph becoming calm after midnight. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday 2025-08-25, Slight Chance T-storms. A slight chance of showers, with thunderstorms also possible after 8am. Mostly sunny, with a high near 81. Light west wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 20%.
Monday Night 2025-08-25, Mostly Clear. Mostly clear, with a low around 56.- Tuesday 2025-08-26, Sunny. Sunny, with a high near 74.
- Tuesday Night 2025-08-26, Mostly Clear. Mostly clear, with a low around 53.
- Wednesday 2025-08-27, Sunny. Sunny, with a high near 73.
- Wednesday Night 2025-08-27, Mostly Clear. Mostly clear, with a low around 52.
- Thursday 2025-08-28, Mostly Sunny. Mostly sunny, with a high near 76.
- Thursday Night 2025-08-28, Partly Cloudy. Partly cloudy, with a low around 55.
- Friday 2025-08-29, Mostly Sunny. Mostly sunny, with a high near 77.