Weather forecast for todaySunnyvale, CA

Today
Tomorrow
Long-term
YearJFMAMJJASOctoberND

Weather forecast for today

Current condition 5:35 am PDT

  • 55°F
  • Feels like:
    55°F
Clear
Clear
  • Precipitation: 0"
  • Wind: 1mphS 180°
  • Humidity: 55%
  • Dewpoint: 39°F
  • Pressure: 30.05"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
In Sunnyvale, at the moment, a perfect day unfolds under completely clear skies.
The temperature is a mild 55.4°F. The current temperature is at the minimum anticipated for today.

Saturday Oct 17, 2026

  • 88°F
  • 55°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 9mphNNE 17°
  • Humidity: 36%
  • UV index: 5
  • Sunrise: 7:18 am PDT
  • Sunset: 6:28 pm PDT
  • ▼
Today, on Saturday, October 17, clear and sunny conditions are expected.
Temperature readings are forecasted to span from a high of a humid 87.8°F to a low of a moderate 55.4°F.
Today, expect conditions that are hotter than normal, with a temperature that reflects September's typical maximum of 77.9°F.
Sunrise will be at 7:18 am and sunset at 6:28 pm; the daylight will last for 11h and 10min.

Hourly overview

Hourly temperatures

Warmest period: 2 pm - 4 pm 86°C.
Coldest hour: 6 am 57°C.

Chance of precipitation

Highest chance: 12 am 3%.

Hourly weather forecast

  • 6 am
  • 57°F
  • Feels like:
    57°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 1mphSSE 155°
  • Humidity: 53%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:18 am
  • 8 am
  • 59°F
  • Feels like:
    59°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 1mphENE 69°
  • Humidity: 52%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 72°F
  • Feels like:
    72°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 1mphNE 49°
  • Humidity: 38%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 81°F
  • Feels like:
    81°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphN 8°
  • Humidity: 27%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 5
  • ▼
  • 2 pm
  • 86°F
  • Feels like:
    86°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphNNW 348°
  • Humidity: 22%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 4 pm
  • 86°F
  • Feels like:
    86°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphNNW 341°
  • Humidity: 23%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 6 pm
  • 79°F
  • Feels like:
    79°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 8mphNNW 336°
  • Humidity: 33%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:28 pm
  • 8 pm
  • 72°F
  • Feels like:
    72°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphNNW 335°
  • Humidity: 48%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 66°F
  • Feels like:
    66°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphN 351°
  • Humidity: 59%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Today, primarily bright and sunny weather is anticipated.
The temperature will vary between a minimum of 57.2°F and a maximum of 86°F. The hottest part of the day will be from 2 pm to 4 pm.
The highest temperature today will resemble September's average maximum of 77.9°F more than October's average. Today, the minimum temperature will be resembling the average low for October.
Updated: Oct 17, 2026 @ 12:35:20 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Currently (5:35 am PDT) it is 55.4°F in Sunnyvale.

Today, expect consistent sunshine and open skies.

Today, the highest temperature in Sunnyvale will be 87.8°F, while the lowest temperature will be 55.4°F.
The maximum temperature today will be uncommonly higher than the average highest temperature of 71.8°F in October. Today, the lowest temperature will be in line with the average low temperature.

On Saturday, in Sunnyvale, sunrise will be at 7:18 am and sunset at 6:28 pm (PDT).

In Sunnyvale, today, there will be 11h and 10min of daylight.
Today
Tomorrow
Long-term
YearJFMAMJJASOctoberND

Latest news

Hurricane Polo Becomes Category 4 Storm in the Eastern Pacific as Heavy Rain Threatens Southwestern Mexico
Hurricane Polo Forecast: Category 4 Storm Threatens Mexico Coast With Heavy Rain, Flooding and Landslides
Category 5 Hurricane Lowell Spins South of Hawaii as Forecasters Watch Pacific Storms for Possible Surf, Rain and Coastal Impacts
Hurricane Lowell Forecast: Category 5 Storm South of Hawaii, Marie Watched Near Southern California
Tropical Storm Lala Rakes Hawaii With Fierce Winds, Flooding Rain and Landslides After Brushing the Big Island
Hawaii Storm Lala: Flooding, Landslides, Power Outages and More Than 100 Homes Damaged
Arctic air sweeps across the U.S., dumping deep snow on the Great Lakes and freezing the South
Arctic blast unleashes over a foot of snow in Great Lakes, record lows in the South and Florida
Tornado Tears Through Northeastern Wisconsin, Blackening the Midday Sky and Leaving Menasha Without Power
Wisconsin Tornado: Menasha and Appleton Hit by Destructive Storm, Power Out for Thousands
Deadly Flash Flooding Devastates North-Central West Virginia After Torrential Rain Swamps Homes, Roads and Businesses
West Virginia Flooding: 2 Dead, 1,000 Homes and Businesses Damaged After Flash Floods

Sunnyvale, California, USA

  • en: Sunnyvale, California, USA
  • es: Sunnyvale, California, EE.UU.
  • hr: Sanivejl, Kalifornija, SAD
  • mk: Sanivejl, Kalifornija, SAD
  • sr: Sanivejl, Kalifornija, SAD
  • zh: 森尼韦尔, 加利福尼亚州, 美国
  • Latitude: 37.368830°
  • Longitude: -122.036350°
  • Elevation: 125 ft
  • Current time: 5:35am PDT
  • Sunrise: 7:18 am PDT
  • Sunset: 6:28 pm PDT
  • Timezone: America/Los_Angeles

Nearby Sunnyvale, California, USA

California, USA - most visited locations

°Celsius°Fahrenheit