Weather forecast for 10 daysPotter Valley, CA

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 79°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSSW 213°
  • Humidity: 41%
  • UV index: 5
  • Sunrise: 7:25 am PDT
  • Sunset: 6:29 pm PDT
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Today, sunshine will likely continue with scattered clouds at most.
A wide temperature range is predicted, from a high of a moderately hot 78.8°F to a low of a brisk 42.8°F.
Expect temperatures to match September's average maximum of 80.6°F rather than October's 70.5°F.
Sunrise will be at 7:25 am and sunset at 6:29 pm; the daylight will last for 11h and 4min.

10-day overview

Daily temperatures

Warmest day: today 79°C.
Minimum temperature: 66°C.

Chance of precipitation

Highest chance: Wednesday 45%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 79°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSSW 213°
  • Humidity: 41%
  • UV index: 5
  • Sunrise: 7:25 am PDT
  • Sunset: 6:29 pm PDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 66°F
  • 43°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 23%
  • Precipitation: 0"
  • Wind: 6mphWSW 248°
  • Humidity: 64%
  • UV index: 3
  • Sunrise: 7:26 am PDT
  • Sunset: 6:27 pm PDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 73°F
  • 45°F
Cloudy
Cloudy
  • Precip. probability: 11%
  • Precipitation: 0"
  • Wind: 4mphSSE 167°
  • Humidity: 54%
  • UV index: 3
  • Sunrise: 7:27 am PDT
  • Sunset: 6:26 pm PDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 70°F
  • 45°F
Showers
Showers
  • Precip. probability: 45%
  • Precipitation: 0"
  • Wind: 4mphSSW 194°
  • Humidity: 65%
  • UV index: 3
  • Sunrise: 7:28 am PDT
  • Sunset: 6:25 pm PDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 68°F
  • 41°F
AM Showers
AM Showers
  • Precip. probability: 35%
  • Precipitation: 0.12"
  • Wind: 6mphWSW 237°
  • Humidity: 76%
  • UV index: 4
  • Sunrise: 7:29 am PDT
  • Sunset: 6:23 pm PDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 73°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 12%
  • Precipitation: 0.08"
  • Wind: 6mphWSW 248°
  • Humidity: 63%
  • UV index: 4
  • Sunrise: 7:30 am PDT
  • Sunset: 6:22 pm PDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 72°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 11%
  • Precipitation: 0"
  • Wind: 6mphSW 216°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:32 am PDT
  • Sunset: 6:21 pm PDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 66°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0.12"
  • Wind: 6mphWSW 242°
  • Humidity: 58%
  • UV index: 4
  • Sunrise: 7:33 am PDT
  • Sunset: 6:19 pm PDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 68°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 6mphSSW 204°
  • Humidity: 54%
  • UV index: 4
  • Sunrise: 7:34 am PDT
  • Sunset: 6:18 pm PDT
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 70°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 21%
  • Precipitation: 0"
  • Wind: 6mphSSW 200°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:35 am PDT
  • Sunset: 6:17 pm PDT
  • ▼
Over the next ten days, a mix of overcast, clear and damp weather is predicted.
Rainfall is expected on Thursday, Friday and next Sunday. The days with the most rainfall will be Thursday and next Sunday, with minimal precipitation of 0.12".
Significant changes in temperature are expected throughout the forecast window. Forecast highs will fluctuate between 66.2°F and 78.8°F, while the overnight low will be nearly unchanged, as the lowest temperatures will remain in the range of 39.2°F to 44.6°F.
Today is the warmest day, with a maximum temperature of 78.8°F; the coldest days will be Monday and next Sunday, with a maximum of 66.2°F.
Updated: Oct 18, 2026 @ 09:21:25 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, in Potter Valley, sunny skies are in store, with excellent visibility.

Today, the highest temperature in Potter Valley will be 78.8°F, while the lowest temperature will be 42.8°F.
Today, the maximum temperature will be moderately higher than the average highest temperature in October. Today, the lowest temperature will be in line with the average low temperature.

On Sunday, in Potter Valley, sunrise will be at 7:25 am and sunset at 6:29 pm (PDT).

In Potter Valley, today, there will be 11h and 4min of daylight.