Weather forecast for 10 daysClearlake, CA
Weather forecast for the weekend
Sunday Oct 18, 2026
- 82°F
- 43°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 9mphWSW 246°
- Humidity: 33%
- UV index: 5
- Sunrise: 7:23 am PDT
- Sunset: 6:27 pm PDT
- details ▼
Today, skies will stay clear and sunny.
Temperatures are set to span a considerable range, with a high of a warm 82.4°F and a low of a brisk 42.8°F.
Today, the anticipated high of 82.4°F is expected to reflect September's average high of 85.1°F.
Sunrise will be at 7:23 am and sunset at 6:27 pm; the daylight will last for 11h and 4min.
Temperatures are set to span a considerable range, with a high of a warm 82.4°F and a low of a brisk 42.8°F.
Today, the anticipated high of 82.4°F is expected to reflect September's average high of 85.1°F.
Sunrise will be at 7:23 am and sunset at 6:27 pm; the daylight will last for 11h and 4min.
10-day overview
Daily temperatures
Warmest day: today 82°C.
Coldest period: Sunday - Monday 66°C.
Coldest period: Sunday - Monday 66°C.
Chance of precipitation
Highest chance: Wednesday 36%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 82°F
- 43°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 9mphWSW 246°
- Humidity: 33%
- UV index: 5
- Sunrise: 7:23 am PDT
- Sunset: 6:27 pm PDT
- details ▼
- Monday
- Oct 19, 2026
- 70°F
- 46°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 7mphW 262°
- Humidity: 54%
- UV index: 5
- Sunrise: 7:24 am PDT
- Sunset: 6:26 pm PDT
- details ▼
- Tuesday
- Oct 20, 2026
- 70°F
- 50°F
Mostly Cloudy
- Precip. probability: 16%
- Precipitation: 0"
- Wind: 6mphE 89°
- Humidity: 51%
- UV index: 3
- Sunrise: 7:25 am PDT
- Sunset: 6:25 pm PDT
- details ▼
- Wednesday
- Oct 21, 2026
- 68°F
- 48°F
Showers
- Precip. probability: 36%
- Precipitation: 0.08"
- Wind: 4mphSSW 192°
- Humidity: 62%
- UV index: 3
- Sunrise: 7:26 am PDT
- Sunset: 6:23 pm PDT
- details ▼
- Thursday
- Oct 22, 2026
- 68°F
- 45°F
AM Showers
- Precip. probability: 35%
- Precipitation: 0.16"
- Wind: 7mphWSW 253°
- Humidity: 73%
- UV index: 4
- Sunrise: 7:27 am PDT
- Sunset: 6:22 pm PDT
- details ▼
- Friday
- Oct 23, 2026
- 73°F
- 43°F
Partly Cloudy
- Precip. probability: 12%
- Precipitation: 0.08"
- Wind: 4mphNE 38°
- Humidity: 62%
- UV index: 4
- Sunrise: 7:28 am PDT
- Sunset: 6:21 pm PDT
- details ▼
- Saturday
- Oct 24, 2026
- 73°F
- 43°F
Mostly Sunny
- Precip. probability: 16%
- Precipitation: 0"
- Wind: 7mphSW 214°
- Humidity: 49%
- UV index: 4
- Sunrise: 7:29 am PDT
- Sunset: 6:19 pm PDT
- details ▼
- Sunday
- Oct 25, 2026
- 66°F
- 41°F
Mostly Sunny
- Precip. probability: 18%
- Precipitation: 0"
- Wind: 7mphWSW 247°
- Humidity: 50%
- UV index: 4
- Sunrise: 7:30 am PDT
- Sunset: 6:18 pm PDT
- details ▼
- Monday
- Oct 26, 2026
- 66°F
- 41°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 6mphSE 134°
- Humidity: 54%
- UV index: 4
- Sunrise: 7:31 am PDT
- Sunset: 6:17 pm PDT
- details ▼
- Tuesday
- Oct 27, 2026
- 68°F
- 41°F
Partly Cloudy
- Precip. probability: 18%
- Precipitation: 0"
- Wind: 6mphSSE 151°
- Humidity: 53%
- UV index: 4
- Sunrise: 7:32 am PDT
- Sunset: 6:15 pm PDT
- details ▼
Models point to a combination of cloud-filled, sun-filled and rain-soaked weather is forecasted.
Rain is forecasted for Wednesday through Friday.
The temperature will vary considerably in the coming days. Maximum temperatures are forecasted between 66.2°F and 82.4°F, while the forecast minimum temperature falls between 41°F and 50°F.
Today is the warmest day, with a maximum temperature of 82.4°F; the coldest days will be next Sunday and Monday, with a maximum of 66.2°F.
Rain is forecasted for Wednesday through Friday.
The temperature will vary considerably in the coming days. Maximum temperatures are forecasted between 66.2°F and 82.4°F, while the forecast minimum temperature falls between 41°F and 50°F.
Today is the warmest day, with a maximum temperature of 82.4°F; the coldest days will be next Sunday and Monday, with a maximum of 66.2°F.
Updated: Oct 18, 2026 @ 08:34:09 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
Today, sunshine and minimal clouds are in the outlook.
Today, the maximum temperature will be 82.4°F, while the minimum temperature will be 42.8°F.
The maximum temperature today will be relatively higher than the average highest temperature in October. The lowest temperature will be also relatively lower than the average low of 49.6°F.
The maximum temperature today will be relatively higher than the average highest temperature in October. The lowest temperature will be also relatively lower than the average low of 49.6°F.
On Sunday, in Clearlake, sunrise will be at 7:23 am and sunset at 6:27 pm (PDT).
In Clearlake, today, there will be 11h and 4min of daylight.
