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: Fair 76°F 2025-06-24T04:51:00-04:00
Today 2025-06-24, Hot. Sunny and hot, with a high near 99. Heat index values as high as 106. Calm wind becoming west around 5 mph in the afternoon.
Tonight 2025-06-24, Mostly Clear. Mostly clear, with a low around 75. Calm wind.
Wednesday 2025-06-25, Sunny then Chance T-storms. A chance of showers and thunderstorms after 2pm. Sunny, with a high near 94. Heat index values as high as 102. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 40%.
Wednesday Night 2025-06-25, Chance T-storms then Chance Showers. A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Calm wind. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.
Thursday 2025-06-26, Showers Likely. A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 83. East wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night 2025-06-26, Showers Likely. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm, then a chance of showers after 11pm. Mostly cloudy, with a low around 62. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday 2025-06-27, Mostly Cloudy then Chance Showers. A chance of showers after 2pm. Mostly cloudy, with a high near 72. Chance of precipitation is 30%.
Friday Night 2025-06-27, Chance Showers. A chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.
Saturday 2025-06-28, Mostly Cloudy then Showers Likely. Showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 80. Chance of precipitation is 60%.
Saturday Night 2025-06-28, Showers Likely then Chance T-storms. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Sunday 2025-06-29, Partly Sunny then Chance T-storms. A chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 40%.
Sunday Night 2025-06-29, Chance T-storms then Partly Cloudy. A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.
Monday 2025-06-30, Partly Sunny then Chance T-storms. A chance of showers and thunderstorms. Mostly sunny, with a high near 89. Chance of precipitation is 50%.
Current condition: Fair 76°F 2025-06-24T04:51:00-04:00 
Today 2025-06-24, Hot. Sunny and hot, with a high near 99. Heat index values as high as 106. Calm wind becoming west around 5 mph in the afternoon.
Tonight 2025-06-24, Mostly Clear. Mostly clear, with a low around 75. Calm wind.Wednesday 2025-06-25, Sunny then Chance T-storms. A chance of showers and thunderstorms after 2pm. Sunny, with a high near 94. Heat index values as high as 102. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 40%.
Wednesday Night 2025-06-25, Chance T-storms then Chance Showers. A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Calm wind. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.
Thursday 2025-06-26, Showers Likely. A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 83. East wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night 2025-06-26, Showers Likely. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm, then a chance of showers after 11pm. Mostly cloudy, with a low around 62. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.Friday 2025-06-27, Mostly Cloudy then Chance Showers. A chance of showers after 2pm. Mostly cloudy, with a high near 72. Chance of precipitation is 30%.
Friday Night 2025-06-27, Chance Showers. A chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.Saturday 2025-06-28, Mostly Cloudy then Showers Likely. Showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 80. Chance of precipitation is 60%.
Saturday Night 2025-06-28, Showers Likely then Chance T-storms. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Sunday 2025-06-29, Partly Sunny then Chance T-storms. A chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 40%.
Sunday Night 2025-06-29, Chance T-storms then Partly Cloudy. A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.
Monday 2025-06-30, Partly Sunny then Chance T-storms. A chance of showers and thunderstorms. Mostly sunny, with a high near 89. Chance of precipitation is 50%.