Weather forecast for 10 daysCastle Rock, CO

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 72°F
  • 41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphNE 34°
  • Humidity: 22%
  • UV index: 5
  • Sunrise: 7:12 am MDT
  • Sunset: 6:16 pm MDT
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Today, in Castle Rock, the sky will feature a blend of clouds and sunshine.
Temperatures will show considerable variation, extending from a high of a delightful 71.6°F to a low of a wintry 41°F.
With a forecast of 71.6°F, conditions deviate from October's average and instead resemble September's climate trend.
Sunrise will be at 7:12 am and sunset at 6:16 pm; the daylight will last for 11h and 4min.

10-day overview

Daily temperatures

Warmest day: Wednesday 73°C.
Coldest day: Saturday 63°C.

Chance of precipitation

Highest chance: Saturday 17%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 72°F
  • 41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphNE 34°
  • Humidity: 22%
  • UV index: 5
  • Sunrise: 7:12 am MDT
  • Sunset: 6:16 pm MDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 70°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 11mphSSE 150°
  • Humidity: 32%
  • UV index: 4
  • Sunrise: 7:13 am MDT
  • Sunset: 6:14 pm MDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 72°F
  • 45°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 7mphNNW 343°
  • Humidity: 37%
  • UV index: 4
  • Sunrise: 7:14 am MDT
  • Sunset: 6:13 pm MDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 73°F
  • 52°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 9mphS 174°
  • Humidity: 35%
  • UV index: 4
  • Sunrise: 7:15 am MDT
  • Sunset: 6:12 pm MDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 72°F
  • 55°F
Cloudy
Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 11mphSSW 194°
  • Humidity: 44%
  • UV index: 2
  • Sunrise: 7:16 am MDT
  • Sunset: 6:10 pm MDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 72°F
  • 45°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 16mphSSW 202°
  • Humidity: 35%
  • UV index: 4
  • Sunrise: 7:17 am MDT
  • Sunset: 6:09 pm MDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 63°F
  • 41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 17%
  • Precipitation: 0"
  • Wind: 10mphSE 126°
  • Humidity: 43%
  • UV index: 4
  • Sunrise: 7:19 am MDT
  • Sunset: 6:08 pm MDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 64°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 13%
  • Precipitation: 0"
  • Wind: 11mphS 179°
  • Humidity: 48%
  • UV index: 4
  • Sunrise: 7:20 am MDT
  • Sunset: 6:06 pm MDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 64°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 9mphS 190°
  • Humidity: 39%
  • UV index: 4
  • Sunrise: 7:21 am MDT
  • Sunset: 6:05 pm MDT
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 64°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 10mphS 190°
  • Humidity: 38%
  • UV index: 4
  • Sunrise: 7:22 am MDT
  • Sunset: 6:04 pm MDT
  • ▼
Weather patterns suggest that primarily cloud-filled and occasionally sun-filled weather is expected.
Rainfall is not predicted in Castle Rock in the upcoming period.
In the upcoming period, the highest temperature will vary between 62.6°F and 73.4°F, while there will be a marked difference in overnight low temperatures, as nighttime lows are forecast to fall between 41°F and 55.4°F.
Wednesday will be the warmest day, with a maximum temperature of 73.4°F; the coldest day will be Saturday, with a maximum of 62.6°F.
Updated: Oct 18, 2026 @ 07:53:10 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, changing cloud patterns will allow for periods of sunshine.

Today, the highest temperature will be 71.6°F, while the lowest temperature will be 41°F.
The highest temperature today will be noticeably higher than the average maximum of 60.4°F in October. The lowest temperature will be in line with the average low of 37.8°F.

On Sunday, in Castle Rock, sunrise will be at 7:12 am and sunset at 6:16 pm (MDT).

In Castle Rock, the length of the day today will be 11h and 4min.