San Acacio, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for San Acacio, a community in Costilla County, Colorado.
This Afternoon
70°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy, with a high near 70. South southwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for San Acacio
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Chance Showers And Thunderstorms | 15 to 20 mph SSW | 49% |
| Tonight | 42°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 to 20 mph S | 23% |
| Saturday | 74°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 25 mph SSW | 15% |
| Saturday Night | 40°F | Mostly Clear | 5 to 20 mph S | 7% |
| Sunday | 73°F | Sunny | 5 to 15 mph SW | 0% |
| Sunday Night | 40°F | Mostly Clear | 5 to 15 mph SSE | 1% |
| Monday | 73°F | Mostly Sunny | 0 to 15 mph SW | 0% |
| Monday Night | 42°F | Partly Cloudy | 10 to 15 mph S | 2% |
| Tuesday | 71°F | Mostly Sunny then Showers And Thunderstorms Likely | 5 to 15 mph S | 55% |
| Tuesday Night | 42°F | Showers And Thunderstorms Likely | 10 to 15 mph S | 56% |
| Wednesday | 67°F | Rain Showers Likely then Chance Showers And Thunderstorms | 5 to 10 mph SSW | 57% |
| Wednesday Night | 41°F | Chance Showers And Thunderstorms | 10 mph S | 37% |
| Thursday | 68°F | Chance Rain Showers then Chance Showers And Thunderstorms | 5 to 10 mph SW | 46% |
| Thursday Night | 42°F | Chance Showers And Thunderstorms | 10 mph SSE | 43% |
Forecast source: National Weather Service (api.weather.gov) for San Acacio (37.209, -105.567). Updated through the day.
Growing snapshot for San Acacio
Last spring frost
May 28
First fall frost
Sep 21
Growing season
115 days
Hardiness zone
5a
More local growing data for San Acacio: nearby ZIP 81151 weather · frost dates · planting calendar · Colorado frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Manassa, Co (13.4 mi from San Acacio). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.