Costilla, NM Weather & Growing Conditions
Today
74°F
Mostly Sunny
Mostly sunny. High near 74, with temperatures falling to around 70 in the afternoon. Southwest wind 5 to 25 mph, with gusts as high as 35 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 74°F | Mostly Sunny | 5 to 25 mph SW | 12% |
| Tonight | 43°F | Mostly Clear | 5 to 20 mph S | 8% |
| Sunday | 74°F | Sunny | 5 to 20 mph SW | 2% |
| Sunday Night | 42°F | Mostly Clear | 5 to 20 mph S | 2% |
| Monday | 74°F | Mostly Sunny | 0 to 20 mph SW | 2% |
| Monday Night | 44°F | Partly Cloudy | 5 to 20 mph S | 1% |
| Tuesday | 72°F | Partly Sunny then Showers And Thunderstorms Likely | 0 to 20 mph S | 60% |
| Tuesday Night | 44°F | Chance Showers And Thunderstorms | 5 to 15 mph S | 48% |
| Wednesday | 68°F | Showers And Thunderstorms Likely | 5 to 15 mph S | 57% |
| Wednesday Night | 44°F | Chance Showers And Thunderstorms | 0 to 15 mph S | 33% |
| Thursday | 68°F | Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 10 mph SW | 48% |
| Thursday Night | 44°F | Chance Showers And Thunderstorms | 0 to 10 mph S | 50% |
| Friday | 68°F | Showers And Thunderstorms Likely | 0 to 15 mph SW | 57% |
| Friday Night | 44°F | Chance Showers And Thunderstorms | 10 to 15 mph S | 38% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Costilla, NM
Last spring frost
May 31
First fall frost
Sep 26
Growing season
116 days
Hardiness zone
5a
Explore more for Costilla, NM: full frost dates · planting calendar · New Mexico frost dates
Climate data from the nearest NOAA station, Cerro, Nm (16.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.