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United States, North America
Bethlehem is located in the United States with varying weather patterns throughout the year. Plan your visit to Bethlehemwith our accurate weather forecasts, including hourly updates, 7-day predictions, and real-time conditions. Whether you're a local or visitor, stay prepared for whatever weather the United States brings.
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United States, United States of America
Wednesday, 15 July 2026 at 00:16
Clear
Feels like 30°C
Humidity
69%
Wind
13 km/h W
Visibility
16 km
Pressure
1014 mb
* WHAT...Heat index values up to 100 expected. * WHERE...Carbon and Monroe Counties. * WHEN...From 10 AM to 8 PM EDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
39°/ 22°
Sunny
Updated nowRain Chance
4%
Humidity
62%
Max Wind
21 km/h
Avg Temp
28°C
Sunrise
05:43 AM
Sunset
08:31 PM
06:00 am
22°
07:00 am
23°
08:00 am
26°
09:00 am
28°
10:00 am
30°
11:00 am
35°
12:00 pm
37°
01:00 pm
39°
02:00 pm
35°
03:00 pm
35°
04:00 pm
35°
05:00 pm
35°
06:00 pm
33°
07:00 pm
30°
08:00 pm
27°
09:00 pm
25°
10:00 pm
24°
11:00 pm
23°
12:00 am
25°
01:00 am
27°
02:00 am
24°
03:00 am
23°
04:00 am
23°
05:00 am
22°
Today
Thu, 16 Jul
UV Index
0 Low
Precipitation
0 mm
* WHAT...Heat index values up to 100 degrees expected outside of the Pocono Plateau. Heat index values up to 95 degrees possible across the Pocono Plateau. * WHERE...Carbon and Monroe Counties. * WHEN...From 10 AM to 8 PM EDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
* WHAT...Heat index values up to 103 expected. * WHERE...Berks, Lehigh, Northampton, Eastern Chester, Upper Bucks, Western Chester, and Western Montgomery Counties. * WHEN...From 10 AM to 8 PM EDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Monitor the latest forecasts and warnings for updates.
* WHAT...Heat index values up to 105 expected. * WHERE...Berks, Lehigh, Northampton, Eastern Chester, Upper Bucks, Western Chester, and Western Montgomery Counties. * WHEN...From 10 AM to 8 PM EDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
Fri, 17 Jul
Sat, 18 Jul
Sun, 19 Jul
Mon, 20 Jul
Tue, 21 Jul
Wed, 22 Jul
Thu, 23 Jul
Fri, 24 Jul
Sat, 25 Jul
Sun, 26 Jul
Mon, 27 Jul
Tue, 28 Jul
Sun
Sunrise
05:43 AM
Sunset
08:31 PM
Moon
Moonrise
06:37 AM
Moonset
09:36 PM
Moon Phase
New Moon
Illumination
3%
Moderate
Acceptable air quality
PM2.5
19.6 μg/m³
PM10
20.4 μg/m³
Ozone (O₃)
101.0 μg/m³
NO₂
4.2 μg/m³
SO₂
2.5 μg/m³
CO
163.0 μg/m³
