Weather forecast for tomorrowSanta Rosa, CA

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 75°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 19%
  • Precipitation: 0"
  • Wind: 11mphSSW 206°
  • Humidity: 62%
  • UV index: 5
  • Sunrise: 7:23 am PDT
  • Sunset: 6:28 pm PDT
  • ▼
Tomorrow, on Sunday, October 18, changing cloud patterns will allow for periods of sunshine.
Day and night temperatures will contrast sharply, from a maximum of a moderately hot 75.2°F to a minimum of a chilly 44.6°F.
Expect the maximum temperature to remain consistent with the typical October high of 72.3°F.
Sunrise will be at 7:23 am and sunset at 6:28 pm; tomorrow's daylight will last for 11h and 5min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 73°C.
Coldest hour: 6 am 48°C.

Chance of precipitation

Highest chance: 9 am 18%.

Hourly weather forecast

  • 12 am
  • 55°F
  • Feels like:
    55°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 1mphWSW 242°
  • Humidity: 75%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 52°F
  • Feels like:
    52°F
Clear
Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 1mphS 184°
  • Humidity: 82%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 48°F
  • Feels like:
    48°F
Clear
Clear
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 1mphSW 229°
  • Humidity: 89%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 48°F
  • Feels like:
    48°F
Clear
Clear
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 0mphSSW 194°
  • Humidity: 92%
  • Pressure: 29.97"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
Sunrise: 7:23 am
  • 8 am
  • 46°F
  • Feels like:
    46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 20%
  • Precipitation: 0"
  • Wind: 1mphSW 225°
  • Humidity: 98%
  • Pressure: 29.97"Hg
  • Visibility: 4mi
  • UV index: 0
  • ▼
  • 10 am
  • 57°F
  • Feels like:
    57°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphWSW 239°
  • Humidity: 73%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 68°F
  • Feels like:
    68°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSSW 209°
  • Humidity: 49%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 73°F
  • Feels like:
    73°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 8mphSSW 207°
  • Humidity: 40%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 4 pm
  • 72°F
  • Feels like:
    72°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphSSW 206°
  • Humidity: 42%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 6 pm
  • 63°F
  • Feels like:
    63°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 9mphS 184°
  • Humidity: 61%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:28 pm
  • 8 pm
  • 55°F
  • Feels like:
    54°F
Clear
Clear
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 5mphS 180°
  • Humidity: 81%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 52°F
  • Feels like:
    52°F
Mostly Clear
Mostly Clear
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 3mphSSW 196°
  • Humidity: 90%
  • Pressure: 29.97"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
Tomorrow, on Sunday, primarily sunny and occasionally cloudy weather is predicted.
The temperature will vary between a minimum of 46.4°F and a maximum of 73.4°F. The warmest part of the day will be from 1 pm to 3 pm.
Tomorrow, expect conditions close to October's usual high temperature. The minimum temperature will be more in line with November's average low of 46°F than October's typical 51.8°F.
Updated: Oct 17, 2026 @ 13:56:27 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, in Santa Rosa, partly cloudy skies will persist, making for a mix of sun and clouds.

Tomorrow, the highest temperature will be 75.2°F, while the lowest temperature will be 44.6°F.
Tomorrow, the maximum temperature will be in line with the average highest temperature in October. Tomorrow, the lowest temperature will be moderately lower than the average low temperature.

On Sunday, in Santa Rosa, sunrise will be at 7:23 am and sunset at 6:28 pm (PDT).

In Santa Rosa, the length of the day tomorrow will be 11h and 5min.