Today | Weather | Friday, May 30, 2025
Heat Advisory (Issued when high temperatures and humidity create conditions that may be hazardous during outdoor activity or prolonged exposure.)
Sunnyvale, California. 05:12 PM
Now
Sunny WeatherSunny weather, clear skies and sunny weather.
90° F
Feels Like 90°
Precipitation 0 %
Wind 12 mph
UV Index (0 - 11+) 3
Humidity 35 %
Today
Sunny WeatherSunny weather, clear skies and sunny weather.
Day 90°
Night 57°
Precipitation 0 %
Wind 7 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:

Warmer with bright sunlight.

Sunnyvale Weather Forecast Updated

Last updated on

Weather Forecast History

Last Year's Weather on This Day (May 30, 2024)

Day

79°

Night

55°