I-78 weather conditions near Allentown, Pennsylvania

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Fair 46°F 2025-10-19T02:51:00-04:00
• Overnight 2025-10-19, Mostly Clear. Mostly clear, with a low around 45. Calm wind.
• Sunday 2025-10-19, Mostly Sunny then Partly Sunny and Breezy. Partly sunny, with a high near 75. Breezy, with an east wind 5 to 10 mph becoming south 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
• Sunday Night 2025-10-19, Showers Likely then Showers. Showers and possibly a thunderstorm, mainly before 5am, then a chance of showers and thunderstorms after 5am. Low around 51. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
• Monday 2025-10-20, Showers Likely and Breezy. Showers likely, mainly between 8am and 2pm. Mostly cloudy, with a high near 61. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
• Monday Night 2025-10-20, Mostly Clear. Mostly clear, with a low around 40. West wind 5 to 10 mph.
• Tuesday 2025-10-21, Sunny. Sunny, with a high near 65.
• Tuesday Night 2025-10-21, Chance Showers. A chance of showers. Mostly cloudy, with a low around 44. Chance of precipitation is 50%.
• Wednesday 2025-10-22, Mostly Sunny. Mostly sunny, with a high near 60.
• Wednesday Night 2025-10-22, Mostly Clear. Mostly clear, with a low around 39.
• Thursday 2025-10-23, Mostly Sunny. Mostly sunny, with a high near 58.
• Thursday Night 2025-10-23, Mostly Clear. Mostly clear, with a low around 37.
• Friday 2025-10-24, Sunny. Sunny, with a high near 58.
• Friday Night 2025-10-24, Partly Cloudy. Partly cloudy, with a low around 37.
• Saturday 2025-10-25, Partly Sunny. Partly sunny, with a high near 57.