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
49°F
Patchy Smoke
Patchy smoke and a slight chance of rain showers. Mostly cloudy. Low around 49, with temperatures rising to around 51 overnight. East wind around 2 mph. Chance of precipitation is 20%.
7-day forecast for Bonanza Mountain Estates
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 49°F | Patchy Smoke | 2 mph E | 15% |
| Tuesday | 69°F | Patchy Smoke | 2 to 7 mph ESE | 25% |
| Tuesday Night | 49°F | Patchy Smoke | 1 to 6 mph SSE | 16% |
| Wednesday | 76°F | Mostly Sunny | 6 mph NW | 2% |
| Wednesday Night | 50°F | Mostly Clear | 5 mph WSW | 1% |
| Thursday | 82°F | Sunny | 6 mph NW | 2% |
| Thursday Night | 53°F | Clear | 5 mph WNW | 1% |
| Friday | 83°F | Sunny | 5 mph NNE | 0% |
| Friday Night | 58°F | Mostly Clear | 2 to 6 mph SSW | 0% |
| Saturday | 85°F | Sunny then Slight Chance Showers And Thunderstorms | 6 mph N | 15% |
| Saturday Night | 59°F | Mostly Clear | 3 mph NW | 1% |
| Sunday | 84°F | Sunny | 5 mph N | 10% |
| Sunday Night | 59°F | Partly Cloudy | 5 mph NW | 8% |
| Monday | 82°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 5 mph NNW | 47% |
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 Aug 4, 2026.