I-78 weather conditions near Allentown, Pennsylvania

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Mostly Cloudy 59°F 2026-05-04T09:51:00-04:00
• Today 2026-05-04, Mostly Sunny. Mostly sunny, with a high near 73. Southwest wind 10 to 15 mph.
• Tonight 2026-05-04, Mostly Clear. Mostly clear, with a low around 55. South wind 5 to 10 mph.
• Tuesday 2026-05-05, Mostly Sunny then Slight Chance Showers. A slight chance of showers after 2pm. Mostly sunny, with a high near 82. Southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
• Tuesday Night 2026-05-05, Chance Showers. A chance of showers, mainly after 2am. Mostly cloudy, with a low around 61. South wind 5 to 10 mph. Chance of precipitation is 30%.
• Wednesday 2026-05-06, Rain. Rain. High near 69. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
• Wednesday Night 2026-05-06, Rain Likely. Rain likely, mainly before 2am. Mostly cloudy, with a low around 47. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
• Thursday 2026-05-07, Showers Likely. A chance of rain before 8am, then showers likely, mainly after 2pm. Partly sunny, with a high near 61. Chance of precipitation is 60%.
• Thursday Night 2026-05-07, Showers Likely then Chance Showers. Showers likely, mainly before 8pm. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.
• Friday 2026-05-08, Mostly Sunny. Mostly sunny, with a high near 62.
• Friday Night 2026-05-08, Partly Cloudy. Partly cloudy, with a low around 44.
• Saturday 2026-05-09, Mostly Sunny then Chance Showers. A chance of showers. Mostly sunny, with a high near 66. Chance of precipitation is 40%.
• Saturday Night 2026-05-09, Chance Showers. A chance of showers. Partly cloudy, with a low around 45. Chance of precipitation is 30%.
• Sunday 2026-05-10, Mostly Sunny. Mostly sunny, with a high near 69.