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United States, North America
Norristown is located in the United States with varying weather patterns throughout the year. Plan your visit to Norristownwith 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
Tuesday, 14 July 2026 at 23:28
Clear
Feels like 32°C
Humidity
65%
Wind
16.6 km/h WSW
Visibility
16 km
Pressure
1015 mb
The New Jersey Department of Environmental Protection has issued a code orange air quality alert Wednesday for Southwestern New Jersey. A code orange air quality alert means that air pollution concentrations within the region may become unhealthy for sensitive groups. Sensitive groups include children...people suffering from asthma... heart disease or other lung diseases...and the elderly. The effects of air pollution can be minimized by avoiding strenuous activity or exercise outdoors. For more information on ground-level ozone and fine particles...visit http://www.state.nj.us/dep/
37°/ 20°
Sunny
Updated nowRain Chance
3%
Humidity
61%
Max Wind
18 km/h
Avg Temp
28°C
Sunrise
05:44 AM
Sunset
08:30 PM
06:00 am
20°
07:00 am
21°
08:00 am
22°
09:00 am
24°
10:00 am
26°
11:00 am
32°
12:00 pm
34°
01:00 pm
36°
02:00 pm
35°
03:00 pm
36°
04:00 pm
37°
05:00 pm
36°
06:00 pm
35°
07:00 pm
33°
08:00 pm
30°
09:00 pm
27°
10:00 pm
26°
11:00 pm
28°
12:00 am
21°
01:00 am
21°
02:00 am
21°
03:00 am
21°
04:00 am
20°
05:00 am
20°
Today
Wed, 15 Jul
UV Index
0 Low
Precipitation
0 mm
* 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.
The New Jersey Department of Environmental Protection has issued a code orange air quality alert Wednesday for Salem and Cumberland Counties. A code orange air quality alert means that air pollution concentrations within the region may become unhealthy for sensitive groups. Sensitive groups include children...people suffering from asthma... heart disease or other lung diseases...and the elderly. The effects of air pollution can be minimized by avoiding strenuous activity or exercise outdoors. For more information on ground-level ozone and fine particles...visit http://www.state.nj.us/dep/
Thu, 16 Jul
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Sat, 25 Jul
Sun, 26 Jul
Mon, 27 Jul
Sun
Sunrise
05:44 AM
Sunset
08:30 PM
Moon
Moonrise
05:16 AM
Moonset
08:56 PM
Moon Phase
New Moon
Illumination
1%
Good
Air quality is satisfactory
PM2.5
10.8 μg/m³
PM10
12.4 μg/m³
Ozone (O₃)
99.0 μg/m³
NO₂
12.7 μg/m³
SO₂
1.7 μg/m³
CO
166.0 μg/m³
