Gunbarrel, CO Weather & Growing Conditions
Today
79°F
Patchy Smoke
Patchy smoke and a slight chance of rain showers. Mostly sunny, with a high near 79. East northeast wind 5 to 8 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 79°F | Patchy Smoke | 5 to 8 mph ENE | 17% |
| Tonight | 54°F | Patchy Smoke | 3 to 8 mph NNE | 10% |
| Wednesday | 87°F | Patchy Smoke | 2 to 7 mph NE | 1% |
| Wednesday Night | 57°F | Mostly Clear | 2 to 6 mph N | 1% |
| Thursday | 95°F | Sunny | 2 to 7 mph NE | 1% |
| Thursday Night | 60°F | Clear | 6 mph NW | 1% |
| Friday | 98°F | Sunny | 1 to 7 mph SSW | 0% |
| Friday Night | 63°F | Mostly Clear | 3 to 7 mph SW | 0% |
| Saturday | 100°F | Sunny | 2 to 7 mph N | 2% |
| Saturday Night | 65°F | Partly Cloudy | 6 mph W | 0% |
| Sunday | 99°F | Sunny | 3 to 7 mph NNE | 8% |
| Sunday Night | 67°F | Partly Cloudy | 7 mph W | 4% |
| Monday | 98°F | Mostly Sunny then Chance Showers And Thunderstorms | 6 to 9 mph N | 27% |
| Monday Night | 66°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 3 to 9 mph W | 17% |
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 Aug 4, 2026.