Bethlehem, PA Air Quality
As of 9:10 AMAir quality is great — a good day to be outside.
Next 24 hours
US AQIAir quality outlook
Worst hour each day- Today49Good
- Sat 1049Good
- Sun 1171Moderate
- Mon 1250Good
- Tue 1355Moderate
From our air-quality forecast models (GEOS-CF / GEFS aerosols). AQI uses the US EPA scale.
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Open full mapAbout Bethlehem weather
Bethlehem is in Northampton County, Pennsylvania, United States at 40.63°, -75.37°. Right now it’s 52° and clear; today’s high is 67° with a 0% chance of rain.
Pennsylvania has a humid continental climate with distinct seasonal changes that vary significantly across the state's diverse topography. The southeastern lowlands around Philadelphia experience milder winters and hotter summers than the mountainous interior. The Appalachian Mountains running through the center of the state create orographic effects that enhance precipitation and generate temperature contrasts between the eastern and western slopes.
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