Today | Weather | Saturday, May 10, 2025
Heat Advisory (Issued when high temperatures and humidity create conditions that may be hazardous during outdoor activity or prolonged exposure.)
Rancho Cucamonga, California. 09:21 PM
Now
Cloudy NightCloudy night, overcast skies at night with no rain.
84° F
Feels Like 82°
Precipitation 0 %
Wind 7 mph
Humidity 26 %
Today
Hot DayHot and sunny weather, with high temperatures and strong sunshine.
Day 100°
Night 70°
Precipitation 0 %
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.

Rancho Cucamonga Weather Forecast Updated

Weather Forecast History

Last Year's Weather on This Day (May 10, 2024)

Day

81°

Night

54°