Castle Rock, CO Weather

Castle Rock weather forecast

  • Temperature:67°F
  • Humidity:59%
  • Pressure:30.01inHg
  • Wind speed:9mph
  • Direction:
  • Gusts:n/a

Update from Denver/Centennial, CO on 2 Sep 11:53 PM PDT

Forecasted weather

Overnight

Mostly Clear

53°F

Wednesday

Sunny

89°F

Wednesday Night

Mostly Clear

51°F

Thursday

Slight Chc Thunderstorms

74°F 10% POP

Thursday Night

Slight Chc Thunderstorms

46°F 20% POP

Friday

Chance Thunderstorms

73°F 30% POP

Friday Night

Chance Thunderstorms

50°F 40% POP

Saturday

Chance Thunderstorms

74°F

Saturday Night

Slight Chc Thunderstorms

51°F

Sunday

Slight Chc Thunderstorms

78°F

Sunday Night

Slight Chc Thunderstorms

52°F

Monday

Slight Chc Thunderstorms

81°F

Monday Night

Slight Chc Thunderstorms

52°F

Tuesday

Mostly Sunny

78°F

Castle Rock average temperature

MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January-8°F70°F31°F0.7"
February-11°F75°F34°F0.4"
March6°F76°F41°F0.9"
April13°F82°F46°F2.1"
May25°F90°F57°F1.7"
June36°F98°F67°F1.6"
July49°F101°F73°F2.2"
August46°F99°F70°F2.9"
September31°F90°F61°F1.1"
October18°F85°F49°F2.0"
November-3°F77°F42°F0.3"
December-13°F69°F29°F1.1"
In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.

The highest average temperature in Castle Rock is July at 73.4 degrees. The coldest average temperature in Castle Rock is December at 28.9 degrees. The most monthly precipitation in Castle Rock occurs in August with 2.9 inches. The Castle Rock weather information is based on the average of the previous 3-7 years of data.

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Castle Rock air quality index & pollution index

IndexCastle RockColoradoNational
Air quality index453437
Pollution index2,104,0802,028,9166,623,939
In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
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The Castle Rock, CO air quality index is a median value which considers the most hazardous air pollutants. The Castle Rock, CO air quality index is 32.2% greater than the Colorado average and 21.6% greater than the national average.

The Castle Rock, CO pollution index is the sum of the most hazardous air pollutants displayed in pounds. The Castle Rock, CO pollution index is 3.7% greater than the Colorado average and 68.2% less than the national average.

Air quality information

MeasurementTotal
Days measured296
Days with good air quality195
Days with moderate air quality95
Days w/ poor A.Q. for sensitive groups6
Days with unhealthy air quality0

Air pollution information

PollutantTotal
Arsenic0.020%
Benzene0.030%
Carbon Tetrachloride0.004%
Lead0.004%
Mercury0.001%

Average monthly Castle Rock temperature with heat index

Castle Rock monthly precipitation with daily maximum

Castle Rock monthly snow depth with daily maximum

Castle Rock monthly wind speed information

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Cities near Castle Rock, CO

CityMilesCityMiles
Castle Rock, CO0Lone Tree, CO11.8
Castle Pines, CO6.1Acres Green, CO12.4
The Pinery, CO7.3Highlands Ranch, CO12.9
Parker, CO10.6Roxborough Park, CO13.3
Stonegate, CO10.7Elizabeth, CO13.5
Carriage Club, CO10.8Castlewood, CO14.5
Ponderosa Park, CO11.4Southglenn, CO15.6
Perry Park, CO11.6Greenwood Village, CO16.6
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