Castle Pines, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Castle Pines, a city in Douglas County, Colorado.
Today
54°F
Sunny
Sunny. High near 54, with temperatures falling to around 47 in the afternoon. North northeast wind around 8 mph.
7-day forecast for Castle Pines
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 54°F | Sunny | 8 mph NNE | 0% |
| Tonight | 32°F | Mostly Clear | 6 mph SSE | 0% |
| Wednesday | 56°F | Mostly Sunny then Slight Chance Rain Showers | 2 to 9 mph NE | 18% |
| Wednesday Night | 35°F | Slight Chance Rain Showers then Mostly Cloudy | 6 mph NW | 18% |
| Thursday | 58°F | Sunny | 2 to 7 mph N | 1% |
| Thursday Night | 35°F | Partly Cloudy | 3 to 8 mph S | 0% |
| Friday | 57°F | Mostly Sunny | 6 mph NNW | 8% |
| Friday Night | 33°F | Mostly Clear | 6 mph WSW | 8% |
| Saturday | 56°F | Sunny | 3 to 8 mph NNW | 6% |
| Saturday Night | 32°F | Mostly Clear | 3 to 8 mph SSE | 1% |
| Sunday | 63°F | Sunny | 1 to 8 mph S | 0% |
| Sunday Night | 36°F | Mostly Clear | 3 to 8 mph SSW | 0% |
| Monday | 67°F | Sunny | 2 to 8 mph SE | 0% |
| Monday Night | 39°F | Partly Cloudy | 6 mph S | 0% |
Forecast source: National Weather Service (api.weather.gov) for Castle Pines (39.462, -104.871). Updated through the day.
Growing snapshot for Castle Pines
Last spring frost
May 9
First fall frost
Oct 2
Growing season
143 days
Hardiness zone
5b
More local growing data for Castle Pines: nearby ZIP 80108 weather · frost dates · planting calendar · Colorado frost dates
Nearby towns & communities
Acres Green
Castle Pines Village
Castle Rock
Franktown
Highlands Ranch
Larkspur
Lone Tree
Louviers
Parker
Perry Park
Roxborough Park
Sedalia
Sierra Ridge
Stepping Stone
Sterling Ranch
Stonegate
The Pinery
Westcreek
Climate data from the nearest NOAA station, Castle Rock, Co (3.7 mi from Castle Pines). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.