Weather forecast for tomorrowGuerneville, CA
Weather forecast for tomorrow
Monday Oct 19, 2026
- 66°F
- 43°F
Mostly Cloudy
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 11mphW 278°
- Humidity: 66%
- UV index: 5
- Sunrise: 7:25 am PDT
- Sunset: 6:28 pm PDT
- details ▼
Tomorrow, a thick layer of clouds will dominate the sky.
The highest temperature will be a breezy 66.2°F, while the lowest temperature will be a brisk 42.8°F.
It will be colder, as the maximum temperature reflects November's norm of 63.5°F instead of October's.
Sunrise will be at 7:25 am and sunset at 6:28 pm; tomorrow's daylight will last for 11h and 3min.
The highest temperature will be a breezy 66.2°F, while the lowest temperature will be a brisk 42.8°F.
It will be colder, as the maximum temperature reflects November's norm of 63.5°F instead of October's.
Sunrise will be at 7:25 am and sunset at 6:28 pm; tomorrow's daylight will last for 11h and 3min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 64°C.
Coldest hour: 6 am 45°C.
Coldest hour: 6 am 45°C.
Chance of precipitation
Highest chance: 6 pm 15%.
Hourly weather forecast
- 12 am
- 48°F
- Feels like:48°F
Mostly Clear
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 3mphNW 304°
- Humidity: 94%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 46°F
- Feels like:46°F
Mostly Clear
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 3mphWNW 292°
- Humidity: 100%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 46°F
- Feels like:45°F
Partly Cloudy
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 3mphWNW 293°
- Humidity: 100%
- Pressure: 29.94"Hg
- Visibility: 9mi
- UV index: 0
- details ▼
- 6 am
- 45°F
- Feels like:43°F
Partly Cloudy
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 3mphWNW 284°
- Humidity: 100%
- Pressure: 29.94"Hg
- Visibility: 9mi
- UV index: 0
- details ▼
Sunrise: 7:25 am
- 8 am
- 46°F
- Feels like:45°F
Partly Cloudy
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 3mphWNW 294°
- Humidity: 98%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 55°F
- Feels like:54°F
Partly Cloudy
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 5mphWNW 283°
- Humidity: 73%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 12 pm
- 61°F
- Feels like:61°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphW 274°
- Humidity: 55%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 2 pm
- 64°F
- Feels like:63°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphW 266°
- Humidity: 51%
- Pressure: 29.88"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 4 pm
- 63°F
- Feels like:63°F
Mostly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 11mphW 275°
- Humidity: 49%
- Pressure: 29.85"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 59°F
- Feels like:57°F
Cloudy
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 8mphWNW 283°
- Humidity: 60%
- Pressure: 29.85"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:28 pm
- 8 pm
- 55°F
- Feels like:54°F
Cloudy
- Precip. probability: 10%
- Precipitation: 0"
- Wind: 4mphWNW 293°
- Humidity: 69%
- Pressure: 29.85"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 52°F
- Feels like:52°F
Cloudy
- Precip. probability: 9%
- Precipitation: 0"
- Wind: 2mphW 265°
- Humidity: 75%
- Pressure: 29.85"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, on Monday, a combination of cloudy and mostly clear weather is expected.
The temperature will vary between the lowest temperature of 44.6°F and the highest temperature of 64.4°F. The warmest part of the day will be at 2 pm and 3 pm.
The maximum is expected to resemble November's average high of 63.5°F rather than October's. The lowest temperature is also more comparable to November's average minimum of 45.3°F than the usual minimum of 50.5°F in October.
The temperature will vary between the lowest temperature of 44.6°F and the highest temperature of 64.4°F. The warmest part of the day will be at 2 pm and 3 pm.
The maximum is expected to resemble November's average high of 63.5°F rather than October's. The lowest temperature is also more comparable to November's average minimum of 45.3°F than the usual minimum of 50.5°F in October.
Updated: Oct 18, 2026 @ 16:48:58 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
On Monday, in Guerneville, the sky is expected to stay overcast for much of the day.
Tomorrow, the highest temperature will be 66.2°F, while the lowest temperature will be 42.8°F.
The highest temperature will be slightly cooler than the average maximum of 72.5°F in October. The lowest temperature will be also a couple of degrees lower than the average low of 50.5°F.
The highest temperature will be slightly cooler than the average maximum of 72.5°F in October. The lowest temperature will be also a couple of degrees lower than the average low of 50.5°F.
On Monday, in Guerneville, sunrise will be at 7:25 am and sunset at 6:28 pm (PDT).
In Guerneville, tomorrow, there will be 11h and 3min of daylight.
