Weather forecast for 10 daysCastle Rock, WA
Weather forecast for the weekend
Sunday Oct 18, 2026
- 64°F
- 45°F
Mostly Sunny
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 8mphN 357°
- Humidity: 67%
- UV index: 3
- Sunrise: 7:33 am PDT
- Sunset: 6:19 pm PDT
- details ▼
Tomorrow, mostly sunny weather is also likely, with high visibility.
The temperature is expected to vary between a maximum of a comfortable 64.4°F and a minimum of a chilly 44.6°F.
Tomorrow's maximum temperature is predicted to be a few degrees higher than the common October peak of 58.8°F.
Sunrise will be at 7:33 am and sunset at 6:19 pm; tomorrow's daylight will last for 10h and 47min.
The temperature is expected to vary between a maximum of a comfortable 64.4°F and a minimum of a chilly 44.6°F.
Tomorrow's maximum temperature is predicted to be a few degrees higher than the common October peak of 58.8°F.
Sunrise will be at 7:33 am and sunset at 6:19 pm; tomorrow's daylight will last for 10h and 47min.
10-day overview
Daily temperatures
Warmest day: Wednesday 70°C.
Coldest day: Saturday 24.10. 55°C.
Coldest day: Saturday 24.10. 55°C.
Chance of precipitation
Highest chance: Saturday 24.10. 37%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- min.
- 41°F
Clear
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 4mphN 349°
- Humidity: 89%
- UV index: 0
- Sunrise: 7:32 am PDT
- Sunset: 6:21 pm PDT
- details ▼
- Sunday
- Oct 18, 2026
- 64°F
- 45°F
Mostly Sunny
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 8mphN 357°
- Humidity: 67%
- UV index: 3
- Sunrise: 7:33 am PDT
- Sunset: 6:19 pm PDT
- details ▼
- Monday
- Oct 19, 2026
- 64°F
- 43°F
Mostly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 5mphSW 226°
- Humidity: 66%
- UV index: 3
- Sunrise: 7:34 am PDT
- Sunset: 6:18 pm PDT
- details ▼
- Tuesday
- Oct 20, 2026
- 68°F
- 41°F
Partly Cloudy
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 8mphN 358°
- Humidity: 68%
- UV index: 3
- Sunrise: 7:36 am PDT
- Sunset: 6:16 pm PDT
- details ▼
- Wednesday
- Oct 21, 2026
- 70°F
- 43°F
Sunny
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 4mphN 354°
- Humidity: 66%
- UV index: 3
- Sunrise: 7:37 am PDT
- Sunset: 6:14 pm PDT
- details ▼
- Thursday
- Oct 22, 2026
- 59°F
- 43°F
Mostly Cloudy
- Precip. probability: 20%
- Precipitation: 0"
- Wind: 6mphWSW 250°
- Humidity: 81%
- UV index: 2
- Sunrise: 7:39 am PDT
- Sunset: 6:13 pm PDT
- details ▼
- Friday
- Oct 23, 2026
- 59°F
- 41°F
Partly Cloudy
- Precip. probability: 22%
- Precipitation: 0"
- Wind: 5mphW 269°
- Humidity: 75%
- UV index: 3
- Sunrise: 7:40 am PDT
- Sunset: 6:11 pm PDT
- details ▼
- Saturday
- Oct 24, 2026
- 55°F
- 41°F
PM Showers
- Precip. probability: 37%
- Precipitation: 0.12"
- Wind: 5mphNE 46°
- Humidity: 79%
- UV index: 2
- Sunrise: 7:41 am PDT
- Sunset: 6:09 pm PDT
- details ▼
- Sunday
- Oct 25, 2026
- 59°F
- 41°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 6mphNE 43°
- Humidity: 78%
- UV index: 3
- Sunrise: 7:43 am PDT
- Sunset: 6:08 pm PDT
- details ▼
- Monday
- Oct 26, 2026
- 59°F
- 41°F
Partly Cloudy
- Precip. probability: 18%
- Precipitation: 0"
- Wind: 5mphWSW 258°
- Humidity: 79%
- UV index: 2
- Sunrise: 7:44 am PDT
- Sunset: 6:06 pm PDT
- details ▼
During the ten-day period, primarily cloud-filled and occasionally bright and rain-filled weather is forecasted.
With a probability of 37%, rainfall is forecasted only for next Saturday. Anticipated precipitation will be minimal at 0.12".
Temperature fluctuation will be noticeable throughout the forecast window. The maximum temperature will vary between 55.4°F and 69.8°F, while fluctuations in the night’s lowest temperature will be minimal, as the lowest temperatures will remain in the range of 41°F to 44.6°F.
The warmest day will be Wednesday, with a maximum of 69.8°F; expect the coldest day on next Saturday with a high of 55.4°F.
With a probability of 37%, rainfall is forecasted only for next Saturday. Anticipated precipitation will be minimal at 0.12".
Temperature fluctuation will be noticeable throughout the forecast window. The maximum temperature will vary between 55.4°F and 69.8°F, while fluctuations in the night’s lowest temperature will be minimal, as the lowest temperatures will remain in the range of 41°F to 44.6°F.
The warmest day will be Wednesday, with a maximum of 69.8°F; expect the coldest day on next Saturday with a high of 55.4°F.
Updated: Oct 18, 2026 @ 02:44:35 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, expect brilliant sunshine under mostly clear skies.
Tomorrow, the maximum temperature will be 64.4°F, while the minimum temperature will be 44.6°F.
Tomorrow, the maximum temperature will be relatively higher than the average highest temperature in October. Tomorrow, the lowest temperature will be in line with the average low temperature.
Tomorrow, the maximum temperature will be relatively higher than the average highest temperature in October. Tomorrow, the lowest temperature will be in line with the average low temperature.
On Sunday, in Castle Rock, sunrise will be at 7:33 am and sunset at 6:19 pm (PDT).
Tomorrow, the daylight will last for 10h and 47min.
