Harman US

Collbran, CO Weather & Growing Conditions

Tonight
47°F
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
A chance of showers and thunderstorms before midnight, then showers and thunderstorms likely. Mostly cloudy, with a low around 47. South wind 5 to 10 mph. Chance of precipitation is 60%.

7-day forecast

WhenTempForecastWindPrecip
Tonight 47°F Chance Showers And Thunderstorms then Showers And Thunderstorms Likely 5 to 10 mph S 64%
Saturday 58°F Showers And Thunderstorms Likely 5 mph SW 67%
Saturday Night 44°F Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms 0 to 5 mph S 29%
Sunday 58°F Sunny 0 to 5 mph WSW 4%
Sunday Night 44°F Mostly Clear 0 to 5 mph ENE 0%
Monday 62°F Mostly Sunny 0 to 5 mph SSW 0%
Monday Night 47°F Partly Cloudy 0 to 5 mph E 7%
Tuesday 61°F Chance Rain Showers then Chance Showers And Thunderstorms 5 mph SSW 44%
Tuesday Night 47°F Showers And Thunderstorms Likely 0 mph 60%
Wednesday 60°F Chance Rain Showers then Slight Chance Showers And Thunderstorms 0 to 5 mph SW 44%
Wednesday Night 47°F Slight Chance Showers And Thunderstorms then Partly Cloudy 0 mph 13%
Thursday 62°F Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms 0 to 5 mph S 21%
Thursday Night 49°F Chance Showers And Thunderstorms 0 mph 30%
Friday 61°F Chance Rain Showers 0 to 5 mph SW 37%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Collbran, CO

Growing season
79 days
Hardiness zone
5b

Explore more for Collbran, CO: full frost dates · planting calendar · Colorado frost dates

Climate data from the nearest NOAA station, Bonham Rsvr, Co (5.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.