Harman US

Gunbarrel, CO Weather & Growing Conditions

Overnight
53°F
Partly Cloudy
Partly cloudy, with a low around 53. West southwest wind around 2 mph.

7-day forecast

WhenTempForecastWindPrecip
Overnight 53°F Partly Cloudy 2 mph WSW 3%
Saturday 76°F Slight Chance Rain Showers then Chance Showers And Thunderstorms 1 to 7 mph SSW 59%
Saturday Night 49°F Chance Showers And Thunderstorms then Partly Cloudy 1 to 5 mph WSW 31%
Sunday 71°F Partly Sunny then Chance Showers And Thunderstorms 1 to 5 mph NNE 29%
Sunday Night 48°F Chance Showers And Thunderstorms then Partly Cloudy 0 to 5 mph NNW 28%
Monday 73°F Sunny 0 to 6 mph ENE 3%
Monday Night 49°F Partly Cloudy 0 to 5 mph NNE 12%
Tuesday 76°F Mostly Sunny 0 to 5 mph ENE 13%
Tuesday Night 51°F Slight Chance Showers And Thunderstorms then Partly Cloudy 0 to 3 mph NW 21%
Wednesday 77°F Mostly Sunny then Slight Chance Showers And Thunderstorms 0 to 5 mph NE 17%
Wednesday Night 51°F Partly Cloudy 3 mph WNW 12%
Thursday 79°F Mostly Sunny 1 to 7 mph S 9%
Thursday Night 53°F Partly Cloudy 0 to 5 mph SSW 11%
Friday 79°F Mostly Sunny then Slight Chance Showers And Thunderstorms 0 to 6 mph SSE 16%

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 Sep 19, 2026.