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May 18th, 2026 :: 3:13 pm MDT   

Local Weather Report for
Castle Rock
Colorado, United States

 Castle Rock Weather Forecast Summary  
 
Today
May 18th
Tuesday
May 19th
Wednesday
May 20th
Thursday
May 21st
Friday
May 22nd
Mix of rain and snow Mix of Cloud and Sun Mostly Cloudy Mostly Cloudy with Showers Mostly Sunny
46°F
54°F
29°F
60°F
41°F
66°F
46°F
65°F
43°F
 
 Castle Rock Detailed Weather Forecast  
 
Monday, May 18th, 2026
Evening Temperature: 35°F
A mix of cloudy and clear skies with showers or wet flurries likely. Windy at times.
Tuesday, May 19th, 2026
Overnight Temperature: 32°F
A mix of cloudy and clear skies with a slight chance of flurries or showers. Windy at times.
Morning Temperature: 34°F
Sunny.
Afternoon Temperature: 51°F
Cloudy with sunny periods. Windy at times.
Evening Temperature: 47°F
Mostly cloudy with a slight chance of showers. Windy at times.
Wednesday, May 20th, 2026
Overnight Temperature: 42°F
Cloudy with showers likely. Windy at times.
Morning Temperature: 46°F
A mix of sun and cloud with a chance of showers. Windy.
Afternoon Temperature: 55°F
A mix of sun and cloud with a chance of showers. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 50°F
Mostly cloudy with a chance of showers. Windy at times.
Thursday, May 21st, 2026
Overnight Temperature: 48°F
A mix of cloudy and clear skies with a chance of showers.
Morning Temperature: 51°F
Sunny. Slight chance of a thunderstorm. Windy.
Afternoon Temperature: 64°F
A mix of sun and cloud with a slight chance of showers or thundershowers. Windy.
Evening Temperature: 48°F
A mix of cloudy and clear skies with showers likely. Slight chance of a thunderstorm. Windy.
Friday, May 22nd, 2026
Overnight Temperature: 46°F
Clear. Slight chance of a thunderstorm. Windy at times.
Morning Temperature: 48°F
Sunny. Slight chance of a thunderstorm.
Afternoon Temperature: 63°F
Sunny with cloudy periods. Windy.
Evening Temperature: 53°F
Mostly clear. Windy at times.
Saturday, May 23rd, 2026
Overnight Temperature: 45°F
Clear with cloudy periods.
Morning Temperature: 51°F
Mostly sunny. Slight chance of a thunderstorm. Windy at times.
Afternoon Temperature: 67°F
A mix of sun and cloud. Slight chance of a thunderstorm.
Evening Temperature: 58°F
Clear with a chance of showers. Windy at times.
Sunday, May 24th, 2026
Overnight Temperature: 54°F
Clear. Windy at times.
Morning Temperature: 59°F
Sunny. Windy at times.
Afternoon Temperature: 74°F
Sunny.
Evening Temperature: 68°F
A mix of clear and cloudy skies. Windy at times.
Monday, May 25th, 2026
Overnight Temperature: 57°F
A mix of clear and cloudy skies. Windy at times.
Morning Temperature: 63°F
Mostly sunny. Slight chance of a thunderstorm. Windy at times.
Afternoon Temperature: 77°F
Sunny.
Evening Temperature: 72°F
Clear with cloudy periods. Windy at times.
Tuesday, May 26th, 2026
Overnight Temperature: 63°F
Clear. Windy at times.
Morning Temperature: 66°F
Sunny.
Afternoon Temperature: 81°F
Sunny. Slight chance of a thunderstorm.
Evening Temperature: 66°F
A mix of clear and cloudy skies with a chance of showers. Slight chance of a thunderstorm. Windy.





 

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This WeatherCity Weather Forecast for Castle Rock, Colorado, United States is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office

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