Gunbarrel, CO Weather & Growing Conditions
Tonight
33°F
Mostly Clear
Mostly clear, with a low around 33. West southwest wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 33°F | Mostly Clear | 2 mph WSW | 0% |
| Wednesday | 56°F | Partly Sunny | 0 to 5 mph NE | 10% |
| Wednesday Night | 33°F | Mostly Cloudy | 2 mph NW | 10% |
| Thursday | 59°F | Sunny | 1 to 5 mph SSE | 0% |
| Thursday Night | 35°F | Partly Cloudy | 2 mph WSW | 1% |
| Friday | 58°F | Mostly Sunny | 1 to 5 mph E | 11% |
| Friday Night | 34°F | Mostly Clear | 3 mph SW | 11% |
| Saturday | 60°F | Sunny | 5 mph SSW | 1% |
| Saturday Night | 33°F | Mostly Clear | 3 mph WSW | 0% |
| Sunday | 67°F | Sunny | 3 mph SSW | 0% |
| Sunday Night | 41°F | Mostly Clear | 3 to 7 mph WSW | 0% |
| Monday | 67°F | Mostly Sunny | 2 to 6 mph E | 0% |
| Monday Night | 40°F | Partly Cloudy | 2 mph WNW | 0% |
| Tuesday | 65°F | Mostly Sunny | 3 mph ENE | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Gunbarrel, CO
Last spring frost
May 6
First fall frost
Oct 5
Growing season
151 days
Hardiness zone
6a
Explore more for Gunbarrel, CO: full frost dates · planting calendar · Colorado frost dates
Climate data from the nearest NOAA station, Boulder, Co (5.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.