I-78 weather conditions near Bethlehem, Pennsylvania
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Partly Cloudy 78°F 2025-07-24T09:51:00-04:00
Today 2025-07-24, Mostly Sunny. Mostly sunny, with a high near 89. Southwest wind 5 to 10 mph.
Tonight 2025-07-24, Clear. Clear, with a low around 72. Southwest wind around 5 mph.
Friday 2025-07-25, Sunny then Chance T-storms. A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Heat index values as high as 101. West wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night 2025-07-25, Chance T-storms then Partly Cloudy. A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 72. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday 2025-07-26, Mostly Sunny then Slight Chance Showers. A slight chance of showers after 2pm. Mostly sunny, with a high near 89. North wind around 5 mph becoming calm. Chance of precipitation is 20%.
Saturday Night 2025-07-26, Chance T-storms. A chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday 2025-07-27, Chance T-storms then Showers Likely. A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 88. Chance of precipitation is 60%.
Sunday Night 2025-07-27, Showers Likely then Partly Cloudy. Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 71. Chance of precipitation is 60%.
Monday 2025-07-28, Sunny. Sunny, with a high near 91.
Monday Night 2025-07-28, Mostly Clear. Mostly clear, with a low around 71.
Tuesday 2025-07-29, Mostly Sunny then Chance T-storms. A chance of showers and thunderstorms. Mostly sunny, with a high near 93. Chance of precipitation is 30%.
Tuesday Night 2025-07-29, Chance T-storms then Partly Cloudy. A chance of showers and thunderstorms. Partly cloudy, with a low around 71. Chance of precipitation is 30%.
Wednesday 2025-07-30, Mostly Sunny then Chance Showers. A chance of showers. Mostly sunny, with a high near 90. Chance of precipitation is 30%.
Current condition: Partly Cloudy 78°F 2025-07-24T09:51:00-04:00 
Tonight 2025-07-24, Clear. Clear, with a low around 72. Southwest wind around 5 mph.Friday 2025-07-25, Sunny then Chance T-storms. A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Heat index values as high as 101. West wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night 2025-07-25, Chance T-storms then Partly Cloudy. A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 72. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday 2025-07-26, Mostly Sunny then Slight Chance Showers. A slight chance of showers after 2pm. Mostly sunny, with a high near 89. North wind around 5 mph becoming calm. Chance of precipitation is 20%.
Saturday Night 2025-07-26, Chance T-storms. A chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.Sunday 2025-07-27, Chance T-storms then Showers Likely. A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 88. Chance of precipitation is 60%.
Sunday Night 2025-07-27, Showers Likely then Partly Cloudy. Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 71. Chance of precipitation is 60%.
Monday 2025-07-28, Sunny. Sunny, with a high near 91.
Monday Night 2025-07-28, Mostly Clear. Mostly clear, with a low around 71.Tuesday 2025-07-29, Mostly Sunny then Chance T-storms. A chance of showers and thunderstorms. Mostly sunny, with a high near 93. Chance of precipitation is 30%.
Tuesday Night 2025-07-29, Chance T-storms then Partly Cloudy. A chance of showers and thunderstorms. Partly cloudy, with a low around 71. Chance of precipitation is 30%.
Wednesday 2025-07-30, Mostly Sunny then Chance Showers. A chance of showers. Mostly sunny, with a high near 90. Chance of precipitation is 30%.