Weather in Sunnyvale, United States 🇺🇸
Sunnyvale currently sits at 27°C, sunny, feeling like 26°C. Expect 34% humidity and winds of about 9 km/h, and the UV index is 7 (high). Across the coming days, Sunnyvale should see roughly 13°C to 35°C. ⚠️ Small Craft Advisory issued August 21 at 2:36AM PDT until August 21 at 9:00PM PDT by NWS San Francisco CA
Hourly Forecast for Sunnyvale
14-Day Forecast for Sunnyvale
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Additional Forecasts for Sunnyvale
Air Quality
Historical Weather
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Best Time to Be Outside in Sunnyvale Today
The most comfortable window in Sunnyvale today looks like 17:00 to 20:00, when it is around 25°C. It should stay dry through that window. No significant rain is expected in the next several hours.
Frequently Asked Questions about Weather in Sunnyvale
What is the temperature in Sunnyvale right now?
Sunnyvale is sitting at 27°C (81°F) right now, sunny (feels like 26°C).
What's the weather like in Sunnyvale right now?
Current weather in Sunnyvale: Sunny, humidity 34%, wind 9 km/h N.
What is today's forecast for Sunnyvale?
Today in Sunnyvale: high 30°C, low 14°C, sunny. Chance of rain: 11%.
What is the 7-day weather forecast for Sunnyvale?
Daily highs and lows for Sunnyvale:
- 2026-08-21: 30°C / 14°C
- 2026-08-22: 30°C / 13°C
- 2026-08-23: 35°C / 15°C
- 2026-08-24: 34°C / 15°C
- 2026-08-25: 32°C / 14°C
- 2026-08-26: 33°C / 13°C
- 2026-08-27: 32°C / 13°C
Is it going to rain in Sunnyvale today?
There is a 11% chance of rain in Sunnyvale today.
What is the wind speed in Sunnyvale right now?
Wind in Sunnyvale is currently 9 km/h (6 mph) from the N.
What is the UV index in Sunnyvale right now?
The UV index in Sunnyvale is currently 7.3 (high). Sun protection is recommended when the index is 3 or higher.
