Costilla, CO Weather & Growing Conditions
This Afternoon
75°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms before 5pm. Mostly sunny, with a high near 75. Southwest wind 15 to 20 mph, with gusts as high as 35 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 75°F | Slight Chance Showers And Thunderstorms | 15 to 20 mph SW | 12% |
| Tonight | 41°F | Mostly Clear | 5 to 20 mph SSW | 2% |
| Sunday | 74°F | Sunny | 0 to 20 mph SW | 1% |
| Sunday Night | 39°F | Mostly Clear | 0 to 15 mph S | 0% |
| Monday | 75°F | Mostly Sunny | 0 to 15 mph WNW | 0% |
| Monday Night | 42°F | Partly Cloudy | 5 to 15 mph S | 1% |
| Tuesday | 71°F | Partly Sunny then Showers And Thunderstorms Likely | 5 to 15 mph S | 56% |
| Tuesday Night | 42°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 10 to 15 mph S | 59% |
| Wednesday | 68°F | Chance Rain Showers then Chance Showers And Thunderstorms | 5 to 15 mph S | 54% |
| Wednesday Night | 41°F | Slight Chance Showers And Thunderstorms | 5 to 15 mph S | 24% |
| Thursday | 69°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 5 mph WNW | 44% |
| Thursday Night | 41°F | Showers And Thunderstorms Likely | 0 to 5 mph S | 55% |
| Friday | 68°F | Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 10 mph SW | 54% |
| Friday Night | 41°F | Chance Showers And Thunderstorms | 10 to 15 mph S | 43% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Costilla, CO
Last spring frost
May 31
First fall frost
Sep 23
Growing season
115 days
Hardiness zone
5a
Explore more for Costilla, CO: full frost dates · planting calendar · Colorado frost dates
Climate data from the nearest NOAA station, San Luis 1 S, Co (16.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.