Larkspur, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Larkspur, a town in Douglas County, Colorado.
This Afternoon
52°F
Sunny
Sunny. High near 52, with temperatures falling to around 44 in the afternoon. Northeast wind around 5 mph.
7-day forecast for Larkspur
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 52°F | Sunny | 5 mph NE | 0% |
| Tonight | 30°F | Mostly Clear | 3 mph SSE | 0% |
| Wednesday | 52°F | Chance Rain Showers | 2 to 9 mph E | 52% |
| Wednesday Night | 31°F | Rain And Snow Showers Likely then Mostly Cloudy | 6 mph NNW | 61% |
| Thursday | 54°F | Sunny | 1 to 5 mph NNW | 0% |
| Thursday Night | 31°F | Partly Cloudy | 2 to 7 mph SSW | 1% |
| Friday | 54°F | Mostly Sunny | 1 to 6 mph NNW | 7% |
| Friday Night | 30°F | Mostly Clear | 2 mph W | 7% |
| Saturday | 57°F | Sunny | 5 mph WNW | 3% |
| Saturday Night | 31°F | Clear | 2 to 6 mph SSW | 2% |
| Sunday | 66°F | Sunny | 2 to 8 mph SSW | 0% |
| Sunday Night | 37°F | Mostly Clear | 7 mph SW | 0% |
| Monday | 65°F | Sunny | 6 mph SSE | 0% |
| Monday Night | 38°F | Partly Cloudy | 7 mph SSW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Larkspur (39.230, -104.886). Updated through the day.
Growing snapshot for Larkspur
Last spring frost
May 14
First fall frost
Oct 1
Growing season
138 days
Hardiness zone
5b
More local growing data for Larkspur: nearby ZIP 80118 weather · frost dates · planting calendar · Colorado frost dates
Nearby towns & communities
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Perry Park
Roxborough Park
Sedalia
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Sterling Ranch
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Westcreek
Climate data from the nearest NOAA station, Monument, Co (6.1 mi from Larkspur). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.