Today | Weather | Wednesday, May 21, 2025
Rancho Cucamonga, California. 06:13 AM
Now
Sunny WeatherSunny weather, clear skies and sunny weather.
64° F
Feels Like 64°
Precipitation 0 %
Wind 4 mph
UV Index (0 - 11+) 0
Humidity 51 %
Today
Sunny WeatherSunny weather, clear skies and sunny weather.
Day 93°
Night 61°
Precipitation 1 %
Wind 8 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.

Other:

Hot with plenty of bright sunlight; caution advised if doing strenuous activities outside.

Rancho Cucamonga Weather Forecast Updated

35 minutes ago
Last updated on

Weather Forecast History

Last Year's Weather on This Day (May 21, 2024)

Day

75°

Night

55°