National Weather Service Forecast for: Castle Rock CO
Issued by: National Weather Service Denver-Boulder, CO
Updated: 12:46 pm MDT May 26, 2026
 
This
Afternoon
This Afternoon: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly cloudy, with a high near 75. Breezy, with a south southeast wind around 23 mph, with gusts as high as 34 mph.
Chance
T-storms and
Breezy
 Tonight

Tonight: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 52. Breezy, with a south wind 16 to 21 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 30%.
Chance
T-storms and
Breezy then
Mostly Cloudy
 Wednesday

Wednesday: A chance of showers, then showers likely and possibly a thunderstorm after noon. Cloudy, with a high near 70. Southeast wind 7 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.
Chance
Showers then
Showers
Likely
 Wednesday
Night
Wednesday Night: A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Cloudy, then gradually becoming partly cloudy, with a low around 51. East southeast wind 7 to 13 mph becoming south after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 40%.
Chance
T-storms then
Mostly Cloudy
 Thursday

Thursday: A 50 percent chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 76. Southeast wind 6 to 10 mph, with gusts as high as 20 mph.
Partly Sunny
then Chance
T-storms
 Thursday
Night
Thursday Night: A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 52.
Chance
T-storms then
Partly Cloudy
 Friday

Friday: A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 79.
Partly Sunny
then Chance
T-storms
 Friday
Night
Friday Night: A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 51.
Chance
T-storms then
Partly Cloudy
 Saturday

Saturday: A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 78.
Sunny then
Slight Chance
T-storms
Hi 75 °F Lo 52 °F Hi 70 °F Lo 51 °F Hi 76 °F Lo 52 °F Hi 79 °F Lo 51 °F Hi 78 °F

 

This Afternoon
 
 A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly cloudy, with a high near 75. Breezy, with a south southeast wind around 23 mph, with gusts as high as 34 mph.
Tonight
 
 A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 52. Breezy, with a south wind 16 to 21 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 30%.
Wednesday
 
 A chance of showers, then showers likely and possibly a thunderstorm after noon. Cloudy, with a high near 70. Southeast wind 7 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.
Wednesday Night
 
 A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Cloudy, then gradually becoming partly cloudy, with a low around 51. East southeast wind 7 to 13 mph becoming south after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 40%.
Thursday
 
 A 50 percent chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 76. Southeast wind 6 to 10 mph, with gusts as high as 20 mph.
Thursday Night
 
 A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 52.
Friday
 
 A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 79.
Friday Night
 
 A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 51.
Saturday
 
 A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 78.
Saturday Night
 
 A chance of showers and thunderstorms before midnight, then a slight chance of showers. Partly cloudy, with a low around 49.
Sunday
 
 A chance of showers and thunderstorms. Mostly sunny, with a high near 76.
Sunday Night
 
 A chance of showers and thunderstorms. Mostly cloudy, with a low around 50.
Monday
 
 Showers and thunderstorms likely. Partly sunny, with a high near 76.

 

Forecast from NOAA-NWS for Castle Rock CO.