Weather forecast for tomorrowWalnut Creek, CA

Weather forecast for tomorrow

Monday Oct 19, 2026

  • 68°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 12mphWSW 242°
  • Humidity: 58%
  • UV index: 5
  • Sunrise: 7:20 am PDT
  • Sunset: 6:25 pm PDT
  • ▼
On Monday, in Walnut Creek, sunny moments will alternate with patchy cloud cover.
The temperature scale will run from a maximum of a pleasant 68°F to a minimum of a crisp 50°F.
With a forecast of 68°F, the day’s weather feels closer to November than October.
Sunrise will be at 7:20 am and sunset at 6:25 pm; tomorrow's daylight will last for 11h and 4min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 66°C.
Coldest period: 3 am - 6 am 54°C.

Chance of precipitation

Highest chance: 3 am - 6 am 8%.

Hourly weather forecast

  • 12 am
  • 55°F
  • Feels like:
    54°F
Mostly Clear
Mostly Clear
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 9mphSSW 209°
  • Humidity: 81%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 54°F
  • Feels like:
    52°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 8mphSSW 213°
  • Humidity: 85%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 54°F
  • Feels like:
    52°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 9mphSW 219°
  • Humidity: 85%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 54°F
  • Feels like:
    50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 8mphSW 217°
  • Humidity: 84%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:20 am
  • 8 am
  • 54°F
  • Feels like:
    52°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 8mphSW 220°
  • Humidity: 82%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 59°F
  • Feels like:
    57°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 10mphSW 235°
  • Humidity: 66%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 64°F
  • Feels like:
    63°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphWSW 244°
  • Humidity: 51%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 66°F
  • Feels like:
    66°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphWSW 253°
  • Humidity: 46%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 4 pm
  • 64°F
  • Feels like:
    64°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphWSW 254°
  • Humidity: 46%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 61°F
  • Feels like:
    61°F
Cloudy
Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 12mphW 260°
  • Humidity: 54%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:25 pm
  • 8 pm
  • 57°F
  • Feels like:
    55°F
Cloudy
Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 7mphW 260°
  • Humidity: 64%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 55°F
  • Feels like:
    55°F
Cloudy
Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 6mphSW 233°
  • Humidity: 71%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, a combination of sun-filled and dull weather is predicted.
The temperature will vary between the lowest temperature of 53.6°F and the highest temperature of 66.2°F. The warmest part of the day will be at 2 pm and 3 pm.
The maximum temperature will be more comparable to November's average high of 64°F than October's 74.1°F. The lowest temperature is expected to be relatively lower than the average minimum in October, typically 54.3°F.
Updated: Oct 18, 2026 @ 14:42:34 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Monday, variable cloud cover will persist, but sunshine will break through.

Tomorrow, the highest temperature will be 68°F, while the lowest temperature will be 50°F.
The highest temperature will be relatively lower than the average maximum of 74.1°F in October. The lowest temperature will be also a couple of degrees lower than the average low of 54.3°F.

On Monday, in Walnut Creek, sunrise will be at 7:20 am and sunset at 6:25 pm (PDT).

In Walnut Creek, the length of the day tomorrow will be 11h and 4min.