Bark Ranch, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bark Ranch, a community in Boulder County, Colorado.
Tonight
47°F
Partly Cloudy
Partly cloudy, with a low around 47. West wind around 6 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Bark Ranch
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 47°F | Partly Cloudy | 6 mph W | 6% |
| Saturday | 63°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 6 mph WSW | 72% |
| Saturday Night | 44°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 2 mph W | 38% |
| Sunday | 57°F | Chance Showers And Thunderstorms | 5 mph NNW | 32% |
| Sunday Night | 43°F | Chance Rain Showers then Partly Cloudy | 2 mph NW | 25% |
| Monday | 59°F | Sunny | 1 to 6 mph SSW | 5% |
| Monday Night | 46°F | Mostly Clear | 2 mph SSW | 7% |
| Tuesday | 64°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 mph S | 38% |
| Tuesday Night | 47°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 2 mph S | 24% |
| Wednesday | 63°F | Partly Sunny then Chance Showers And Thunderstorms | 3 mph SSW | 39% |
| Wednesday Night | 47°F | Slight Chance Rain Showers then Mostly Cloudy | 2 mph S | 20% |
| Thursday | 63°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 mph SSE | 25% |
| Thursday Night | 49°F | Chance Rain Showers then Mostly Cloudy | 2 mph SSW | 25% |
| Friday | 64°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 mph SSE | 27% |
Forecast source: National Weather Service (api.weather.gov) for Bark Ranch (40.118, -105.441). Updated through the day.
Growing snapshot for Bark Ranch
Last spring frost
Jun 21
First fall frost
Sep 2
Growing season
71 days
Hardiness zone
5b
More local growing data for Bark Ranch: nearby ZIP 80455 weather · frost dates · planting calendar · Colorado frost dates
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Climate data from the nearest NOAA station, Boulder 14 W, Co (8.6 mi from Bark Ranch). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.