Sunnyvale, CA Weather

Updated: Wed Sep 10th 2025 4:45 AM PDT

Overcast

66^°F 19^°C

Feels Like 66^°F / 19^°C

Sunnyvale, CA weather condition is Overcast and 66°F.

Today's Weather in Sunnyvale,CA

The current weather in Sunnyvale CA as of 4:45 AM PDT on Wed Sep 10th 2025, has a sky condition of Overcast with the visibility of 9 mile(s). It is 66 degrees fahrenheit. The barometric pressure is 29.86 - measured by inches of mercury - and is falling since its last observation. The humidity is 78 percent that's falling since the last report, with a dew point of 60 degrees fahrenheit which is falling. Wind direction is from the South at 2.7 miles per hour, gusting at 4.3 miles per hour. Sunrise is at 6:46 AM and Sunset is at 7:23 PM. The moon phase is a Waning Gibbous moon rising at 8:59 PM. Thank you for listening to the weather report from LocalConditions.com!

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Barometer 29.86 inHg. falling
Humidity 78% falling
Heat Index 64°F
Wind from S. 2.7 mph
Wind Gust 4.3 miles per hour
Wind Chill 64°F
UV Index 0

Dew Point 60°F falling
Visibility 9 mi.
Sunrise 6:46 AM
Sunset 7:23 PM
Moonrise 8:59 PM
Moonset 10:11 AM
Moon Phase Waning Gibbous Moon

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Radar Alerts Next 48 Hours Traffic

Hourly Forecast - Next 8 hours

5 Day Forecast

Overcast

Overcast with a high of 65°F and a low of 58°F. Winds will be light at 10mph at times. Expect high humidity with levels above 80% to 85%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 65° \| Lo 58°	85%	0%	0%	9.2 mph

Overcast

Overcast with a high of 73°F and a low of 58°F. Winds will be light at 8mph at times. The humidity will be on the higher side, reaching around 80%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 73° \| Lo 58°	80%	0%	0%	7.8 mph

Sunny

Sunny with a high of 83°F and a low of 55°F. Winds will be light at 10mph at times. The humidity will be on the higher side, reaching around 63%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 83° \| Lo 55°	63%	0%	0%	9.2 mph

Sunny

Sunny with a high of 78°F and a low of 57°F. Winds will be light at 10mph at times. The humidity will be on the higher side, reaching around 71%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 78° \| Lo 57°	71%	0% \| est. 0in	0%	9.4 mph

Cloudy

Cloudy with a high of 75°F and a low of 58°F. Winds will be light at 10mph at times. The humidity will be on the higher side, reaching around 70%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 75° \| Lo 58°	70%	0% \| est. 0in	0%	9.8 mph

Yesterday Tomorrow 5-Day

Weather Radar Map

Live Sunnyvale, CA weather with granular precipitation, radar, barometric pressure, temperatures and wind speeds for today thru Sunday, as you toggle through each map layer. Use the slider to move forward and back in time to view how current data and forecasts will affect the region; you can press or click on the map to show metrics available for each tab. The related timestamp is located above the Play button which will animate the weather forecast.

Hourly Temperature

The current temperature today is 66^°F. The morning temperature of 64°^F is lowest at 12am with the daytime high of 74°^F at 4pm and a low around 61°^F at 10pm is expected.