Bonanza, CO Weather & Growing Conditions
Overnight
42°F
Partly Cloudy
Partly cloudy, with a low around 42. South southwest wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 42°F | Partly Cloudy | 5 mph SSW | 3% |
| Saturday | 57°F | Chance Rain Showers then Chance Showers And Thunderstorms | 10 to 15 mph SW | 36% |
| Saturday Night | 39°F | Mostly Clear | 5 to 15 mph WSW | 6% |
| Sunday | 59°F | Sunny | 5 to 15 mph WSW | 0% |
| Sunday Night | 39°F | Mostly Clear | 5 to 10 mph NW | 0% |
| Monday | 60°F | Sunny | 0 to 10 mph WSW | 0% |
| Monday Night | 42°F | Partly Cloudy | 5 mph N | 1% |
| Tuesday | 58°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 to 10 mph SW | 38% |
| Tuesday Night | 43°F | Chance Showers And Thunderstorms | 5 mph S | 52% |
| Wednesday | 55°F | Chance Rain Showers then Chance Showers And Thunderstorms | 5 to 10 mph SSW | 40% |
| Wednesday Night | 43°F | Slight Chance Showers And Thunderstorms | 5 mph SW | 19% |
| Thursday | 56°F | Partly Sunny then Chance Showers And Thunderstorms | 5 mph SW | 30% |
| Thursday Night | 45°F | Chance Showers And Thunderstorms | 5 mph N | 45% |
| Friday | 55°F | Showers And Thunderstorms Likely | 5 mph SW | 55% |
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 Sep 19, 2026.