Bonanza, CO Weather & Growing Conditions
Overnight
26°F
Partly Cloudy
Partly cloudy, with a low around 26. Southwest wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 26°F | Partly Cloudy | 5 mph SW | 0% |
| Wednesday | 37°F | Mostly Sunny then Slight Chance Snow Showers | 5 to 10 mph SSW | 55% |
| Wednesday Night | 23°F | Snow Showers Likely | 5 to 15 mph WNW | 58% |
| Thursday | 37°F | Sunny | 0 to 15 mph SSE | 6% |
| Thursday Night | 27°F | Partly Cloudy | 5 mph W | 0% |
| Friday | 36°F | Mostly Sunny | 5 mph WSW | 11% |
| Friday Night | 23°F | Mostly Clear | 5 to 10 mph WNW | 11% |
| Saturday | 39°F | Sunny | 0 to 10 mph WNW | 4% |
| Saturday Night | 26°F | Mostly Clear | 5 mph NW | 0% |
| Sunday | 42°F | Sunny | 5 mph WSW | 0% |
| Sunday Night | 28°F | Mostly Clear | 5 mph W | 0% |
| Monday | 43°F | Sunny | 0 to 5 mph W | 0% |
| Monday Night | 30°F | Partly Cloudy | 0 to 5 mph WNW | 1% |
| Tuesday | 42°F | Mostly Sunny | 5 mph W | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Bonanza, CO
Last spring frost
May 16
First fall frost
Sep 28
Growing season
135 days
Hardiness zone
5b
Explore more for Bonanza, CO: full frost dates · planting calendar · Colorado frost dates
Climate data from the nearest NOAA station, Saguache, Co (14.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.