Today | Weather | Monday, June 23, 2025
Extreme Heat Warning (Issued when dangerously high temperatures are expected.) Air Quality Alert (Issued when air pollution levels are unhealthy, especially for sensitive groups.)
Allentown, Pennsylvania. 01:55 AM
Now
Cloudy NightCloudy night, overcast skies at night with no rain.
77° F
Feels Like 82°
Precipitation 7 %
Wind 4 mph
Humidity 88 %
Today
Sunny WeatherSunny weather, clear skies and sunny weather.
Day 99°
Night 73°
Precipitation 2 %
Wind 6 mph
UV Index (0 - 11+) 11

Warning: Extreme UV Index Today: 11

Overexposure to the sun's harmful UV rays can cause sunburn and increase the risk of developing skin cancer, including melanoma. Protect yourself by wearing clothing that covers your skin, sunglasses, and a hat. Apply a broad-spectrum sunscreen with an SPF of 30 or higher every two hours, even on cloudy days. Minimize direct sun exposure during peak hours (10 AM to 4 PM) to reduce the risk.

Allentown Weather Forecast Updated

25 minutes ago
Last updated on

Weather Forecast History

Last Year's Weather on This Day (June 23, 2024)

Day

95°

Night

73°