Larkspur, CO Weather & Growing Conditions
Today
50°F
Chance Rain Showers
A chance of rain showers after 11am. Partly sunny. High near 50, with temperatures falling to around 43 in the afternoon. East wind 5 to 8 mph, with gusts as high as 16 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 50°F | Chance Rain Showers | 5 to 8 mph E | 46% |
| Tonight | 30°F | Chance Rain And Snow Showers | 8 mph NNW | 47% |
| Thursday | 51°F | Sunny | 2 to 6 mph NNW | 0% |
| Thursday Night | 31°F | Partly Cloudy | 3 to 9 mph SSW | 0% |
| Friday | 51°F | Mostly Sunny | 3 to 7 mph NW | 7% |
| Friday Night | 30°F | Mostly Clear | 3 mph WNW | 7% |
| Saturday | 53°F | Sunny | 5 mph NNW | 3% |
| Saturday Night | 31°F | Mostly Clear | 2 to 7 mph W | 0% |
| Sunday | 62°F | Sunny | 2 to 9 mph SSW | 0% |
| Sunday Night | 36°F | Mostly Clear | 5 to 9 mph SW | 0% |
| Monday | 63°F | Sunny | 5 mph WNW | 0% |
| Monday Night | 36°F | Partly Cloudy | 5 mph SSW | 1% |
| Tuesday | 61°F | Mostly Sunny | 5 mph SSW | 1% |
| Tuesday Night | 37°F | Partly Cloudy | 3 mph SW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Larkspur, CO
Last spring frost
May 14
First fall frost
Oct 1
Growing season
138 days
Hardiness zone
5b
Explore more for Larkspur, CO: full frost dates · planting calendar · Colorado frost dates
Climate data from the nearest NOAA station, Monument, Co (6.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.