Weather forecast for 10 daysGuerneville, CA
Weather forecast for the weekend
Sunday Oct 18, 2026
- 73°F
- 43°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 9mphWSW 248°
- Humidity: 50%
- UV index: 5
- Sunrise: 7:24 am PDT
- Sunset: 6:29 pm PDT
- details ▼
Today, in Guerneville, sunny and dry conditions are anticipated.
The day will see a remarkable high of a moderately hot 73.4°F, sharply contrasting with a low of a chilly 42.8°F.
Today, expect the temperature to remain near October's average maximum of 72.5°F.
Sunrise was at 7:24 am and sunset will be at 6:29 pm; the daylight will last for 11h and 5min.
The day will see a remarkable high of a moderately hot 73.4°F, sharply contrasting with a low of a chilly 42.8°F.
Today, expect the temperature to remain near October's average maximum of 72.5°F.
Sunrise was at 7:24 am and sunset will be at 6:29 pm; the daylight will last for 11h and 5min.
10-day overview
Daily temperatures
Warmest day: today 73°C.
Coldest day: tomorrow 64°C.
Coldest day: tomorrow 64°C.
Chance of precipitation
Highest chance: Wednesday 45%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 73°F
- 43°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 9mphWSW 248°
- Humidity: 50%
- UV index: 5
- Sunrise: 7:24 am PDT
- Sunset: 6:29 pm PDT
- details ▼
- Monday
- Oct 19, 2026
- 64°F
- 45°F
Partly Cloudy
- Precip. probability: 16%
- Precipitation: 0"
- Wind: 11mphW 279°
- Humidity: 66%
- UV index: 5
- Sunrise: 7:25 am PDT
- Sunset: 6:28 pm PDT
- details ▼
- Tuesday
- Oct 20, 2026
- 68°F
- 48°F
Partly Cloudy
- Precip. probability: 23%
- Precipitation: 0.04"
- Wind: 6mphESE 120°
- Humidity: 66%
- UV index: 4
- Sunrise: 7:26 am PDT
- Sunset: 6:27 pm PDT
- details ▼
- Wednesday
- Oct 21, 2026
- 66°F
- 48°F
AM Showers
- Precip. probability: 45%
- Precipitation: 0.16"
- Wind: 5mphSW 228°
- Humidity: 77%
- UV index: 3
- Sunrise: 7:27 am PDT
- Sunset: 6:25 pm PDT
- details ▼
- Thursday
- Oct 22, 2026
- 66°F
- 46°F
AM Showers
- Precip. probability: 36%
- Precipitation: 0.04"
- Wind: 8mphWNW 284°
- Humidity: 83%
- UV index: 4
- Sunrise: 7:28 am PDT
- Sunset: 6:24 pm PDT
- details ▼
- Friday
- Oct 23, 2026
- 72°F
- 45°F
Sunny
- Precip. probability: 11%
- Precipitation: 0"
- Wind: 8mphWNW 290°
- Humidity: 72%
- UV index: 4
- Sunrise: 7:29 am PDT
- Sunset: 6:23 pm PDT
- details ▼
- Saturday
- Oct 24, 2026
- 72°F
- 46°F
Partly Cloudy
- Precip. probability: 10%
- Precipitation: 0.08"
- Wind: 8mphSW 235°
- Humidity: 59%
- UV index: 4
- Sunrise: 7:30 am PDT
- Sunset: 6:21 pm PDT
- details ▼
- Sunday
- Oct 25, 2026
- 70°F
- 45°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0.04"
- Wind: 8mphWSW 243°
- Humidity: 62%
- UV index: 4
- Sunrise: 7:31 am PDT
- Sunset: 6:20 pm PDT
- details ▼
- Monday
- Oct 26, 2026
- 68°F
- 43°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 8mphW 271°
- Humidity: 64%
- UV index: 4
- Sunrise: 7:32 am PDT
- Sunset: 6:19 pm PDT
- details ▼
- Tuesday
- Oct 27, 2026
- 68°F
- 43°F
Mostly Sunny
- Precip. probability: 18%
- Precipitation: 0"
- Wind: 8mphWSW 241°
- Humidity: 62%
- UV index: 4
- Sunrise: 7:33 am PDT
- Sunset: 6:18 pm PDT
- details ▼
For the next ten days, a combination of dull, sunny and damp weather is forecasted.
Rain is forecasted for Tuesday through Thursday and next Sunday.
In the upcoming days, the highest temperature will vary between 64.4°F and 73.4°F, while the nighttime low will be mostly stable, as night temperatures will lie between 42.8°F and 48.2°F.
Today is the warmest day, with a maximum temperature of 73.4°F; with the highest temperature of 64.4°F, Monday will be the coldest day.
Rain is forecasted for Tuesday through Thursday and next Sunday.
In the upcoming days, the highest temperature will vary between 64.4°F and 73.4°F, while the nighttime low will be mostly stable, as night temperatures will lie between 42.8°F and 48.2°F.
Today is the warmest day, with a maximum temperature of 73.4°F; with the highest temperature of 64.4°F, Monday will be the coldest day.
Updated: Oct 18, 2026 @ 18:50:31 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 Sunday, in Guerneville, expect sunny weather with a crisp, clear sky.
Today, the highest temperature in Guerneville will be 73.4°F, while the lowest temperature will be 42.8°F.
The highest temperature today will be in line with the average maximum temperature in October. The lowest temperature today will be relatively lower than the average low temperature.
The highest temperature today will be in line with the average maximum temperature in October. The lowest temperature today will be relatively lower than the average low temperature.
On Sunday, in Guerneville, sunrise was at 7:24 am and sunset will be at 6:29 pm (PDT).
Today in Guerneville, the daylight will last for 11h and 5min.
