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Today Hourly 7 days 30 days September
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September 2026 Weather | Castle Rock, Colorado

Today 9/21
Cloudy Weather
Day 73°
Night 50°
1
Tue 9/22
Stormy Weather
Day 81°
Night 54°
55
Wed 9/23
Stormy Weather
Day 72°
Night 52°
55
Thu 9/24
Cloudy Weather
Day 66°
Night 48°
55
Fri 9/25
Cloudy Weather
Day 73°
Night 48°
55
Sat 9/26
Cloudy Weather
Day 77°
Night 52°
55
Sun 9/27
Partly Sunny with Showers
Day 77°
Night 54°
57
Mon 9/28
Cloudy Weather
Day 75°
Night 48°
1
Tue 9/29
Stormy Weather
Day 72°
Night 46°
64
Wed 9/30
Rainy Weather
Day 70°
Night 46°
75

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