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Weather in Sunnyvale, United States 🇺🇸

Current Weather in Sunnyvale

Heat Advisory issued June 10 at 9:16PM PDT until June 11 at 11:00PM PDT by NWS San Francisco CA
Sunny
36°C
Feels like 34°C. Sunny.
🌬️ 11 km/h WNW
💧 15% Humidity
🧭 1008 hPa
👁️ 16.0 km Visibility
☀️ UV Index: 8.1
🌡️ Dew Point: 8°C
🌅 Sunrise: 05:46 AM
🌇 Sunset: 08:28 PM
Map Overlays:

In Sunnyvale right now it is 36°C and sunny, feeling like 34°C. Humidity is 15% with winds around 11 km/h, and the UV index is 8 (very high). Over the next few days, temperatures in Sunnyvale range from about 15°C to 39°C. ⚠️ Heat Advisory issued June 10 at 9:16PM PDT until June 11 at 11:00PM PDT by NWS San Francisco CA

Hourly Forecast for Sunnyvale

16:00
Sunny
36°
0%
17:00
Sunny
34°
0%
18:00
Sunny
32°
0%
19:00
Sunny
28°
0%
20:00
Sunny
26°
1%
21:00
Clear
24°
1%
22:00
Clear
23°
1%
23:00
Clear
21°
1%
00:00
Clear
19°
2%
01:00
Clear
18°
4%
02:00
Clear
17°
5%
03:00
Clear
17°
6%
04:00
Clear
16°
4%
05:00
Clear
16°
5%
06:00
Sunny
17°
4%
07:00
Sunny
19°
4%
08:00
Sunny
22°
2%
09:00
Sunny
25°
1%
10:00
Sunny
28°
1%
11:00
Sunny
30°
0%
12:00
Sunny
32°
0%
13:00
Sunny
33°
0%
14:00
Sunny
33°
0%
15:00
Sunny
33°
0%

14-Day Forecast for Sunnyvale

Thu, Jun 11
Sunny Sunny
39° / 16°
Fri, Jun 12
Sunny Sunny
34° / 15°
Sat, Jun 13
Sunny Sunny
32° / 15°
Sun, Jun 14
Sunny Sunny
33° / 14°
Mon, Jun 15
Sunny Sunny
33° / 15°
Tue, Jun 16
Sunny Sunny
34° / 16°
Wed, Jun 17
Sunny Sunny
34° / 15°
Thu, Jun 18
Sunny Sunny
28° / 12°
Fri, Jun 19
Sunny Sunny
26° / 11°
Sat, Jun 20
Sunny Sunny
25° / 10°
Sun, Jun 21
Sunny Sunny
27° / 11°
Mon, Jun 22
Sunny Sunny
30° / 11°
Tue, Jun 23
Sunny Sunny
33° / 11°
Wed, Jun 24
Sunny Sunny
31° / 13°

Additional Forecasts for Sunnyvale

Air Quality

💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 121.0 μg/m³
O₃ (Ozone) 134.0 μg/m³
NO₂ (Nitrogen Dioxide) 1.9 μg/m³
SO₂ (Sulphur Dioxide) 1.5 μg/m³
PM2.5 (Fine particles) 11.4 μg/m³
PM10 (Coarse particles) 16.5 μg/m³

Historical Weather

Weather Forecasts for Other Cities in United States

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Best Time to Be Outside in Sunnyvale Tomorrow

There is no good daylight window left in Sunnyvale today. Tomorrow, the most comfortable window looks like 08:00 to 09:00, when it is around 23°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?

The current temperature in Sunnyvale is 36°C (97°F), sunny (feels like 34°C).

What's the weather like in Sunnyvale right now?

Conditions in Sunnyvale right now: Sunny, humidity 15%, wind 11 km/h WNW.

What is today's forecast for Sunnyvale?

Today in Sunnyvale: high 39°C, low 16°C, sunny. Chance of rain: 1%.

What is the 7-day weather forecast for Sunnyvale?

Daily highs and lows for Sunnyvale:

  • 2026-06-11: 39°C / 16°C
  • 2026-06-12: 34°C / 15°C
  • 2026-06-13: 32°C / 15°C
  • 2026-06-14: 33°C / 14°C
  • 2026-06-15: 33°C / 15°C
  • 2026-06-16: 34°C / 16°C
  • 2026-06-17: 34°C / 15°C
Is it going to rain in Sunnyvale today?

There is a 1% chance of rain in Sunnyvale today.

What is the wind speed in Sunnyvale right now?

Wind in Sunnyvale is currently 11 km/h (7 mph) from the WNW.

What is the UV index in Sunnyvale right now?

The UV index in Sunnyvale is currently 8.1 (very high). Sun protection is recommended when the index is 3 or higher.

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