Bonanza Mountain Estates, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bonanza Mountain Estates, a community in Boulder County, Colorado.
Overnight
45°F
Partly Cloudy
Partly cloudy, with a low around 45. West southwest wind around 5 mph.
7-day forecast for Bonanza Mountain Estates
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 45°F | Partly Cloudy | 5 mph WSW | 11% |
| Saturday | 64°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 6 mph WSW | 57% |
| Saturday Night | 41°F | Chance Showers And Thunderstorms then Partly Cloudy | 3 mph W | 33% |
| Sunday | 61°F | Mostly Sunny then Chance Showers And Thunderstorms | 1 to 5 mph WNW | 29% |
| Sunday Night | 39°F | Slight Chance Rain Showers then Partly Cloudy | 2 mph NNE | 20% |
| Monday | 62°F | Sunny | 0 to 6 mph SSW | 5% |
| Monday Night | 42°F | Partly Cloudy | 2 mph NW | 8% |
| Tuesday | 66°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 3 mph ENE | 35% |
| Tuesday Night | 43°F | Chance Showers And Thunderstorms then Partly Cloudy | 2 mph SW | 29% |
| Wednesday | 66°F | Partly Sunny then Chance Showers And Thunderstorms | 1 to 5 mph NNW | 44% |
| Wednesday Night | 43°F | Slight Chance Rain Showers then Partly Cloudy | 2 mph WNW | 17% |
| Thursday | 67°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 mph NNE | 19% |
| Thursday Night | 45°F | Slight Chance Rain Showers then Partly Cloudy | 2 mph WSW | 16% |
| Friday | 67°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 3 mph SE | 35% |
Forecast source: National Weather Service (api.weather.gov) for Bonanza Mountain Estates (39.977, -105.480). Updated through the day.
Growing snapshot for Bonanza Mountain Estates
Last spring frost
Jun 21
First fall frost
Sep 2
Growing season
71 days
Hardiness zone
5b
More local growing data for Bonanza Mountain Estates: nearby ZIP 80466 weather · frost dates · planting calendar · Colorado frost dates
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Climate data from the nearest NOAA station, Boulder 14 W, Co (3.3 mi from Bonanza Mountain Estates). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.