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: 9mphSE 139°
  • Humidity: 26%
  • UV index: 5
  • Sunrise: 7:12 am MDT
  • Sunset: 6:16 pm MDT
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Today, changing cloud patterns will allow for periods of sunshine.
A wide temperature range is forecasted, from a high of a pleasant 71.6°F to a low of a cold 41°F.
Today, the temperature will be higher and more consistent with September's typical high of 75.6°F than with October's 60.4°F.
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: Thursday 16%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 72°F
  • 41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphSE 139°
  • Humidity: 26%
  • 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: 11mphSE 141°
  • Humidity: 34%
  • 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: 10mphS 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: 16%
  • 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: 4%
  • Precipitation: 0"
  • Wind: 16mphSSW 203°
  • Humidity: 36%
  • 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: 14%
  • Precipitation: 0"
  • Wind: 11mphSE 131°
  • 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: 8%
  • Precipitation: 0"
  • Wind: 11mphS 180°
  • Humidity: 46%
  • UV index: 4
  • Sunrise: 7:20 am MDT
  • Sunset: 6:06 pm MDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 66°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 9mphS 189°
  • 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 191°
  • Humidity: 38%
  • UV index: 4
  • Sunrise: 7:22 am MDT
  • Sunset: 6:04 pm MDT
  • ▼
Weather models show that primarily dull and occasionally bright weather is anticipated.
Rain is not forecasted in Castle Rock in the upcoming period.
In the coming days, the highest temperature will range between 62.6°F and 73.4°F, while the fluctuation in night temperatures will be significant, as the overnight lows will vary from 41°F to 55.4°F.
Expect the warmest day on Wednesday, with temperatures peaking at 73.4°F; expect the coldest day on Saturday with a high of 62.6°F.
Updated: Oct 18, 2026 @ 09:37:37 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, moderate cloud cover will mix with sunshine throughout the day.

Today, the maximum temperature will be 71.6°F, while the minimum temperature will be 41°F.
Today, the highest temperature will be notably 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).

Today, the daylight will last for 11h and 4min.