Antonito, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Antonito, a town in Conejos County, Colorado.
Overnight
54°F
Patchy Smoke
Patchy smoke. Mostly clear, with a low around 54. Northwest wind around 5 mph.
7-day forecast for Antonito
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 54°F | Patchy Smoke | 5 mph NW | 0% |
| Tuesday | 89°F | Patchy Smoke then Slight Chance Showers And Thunderstorms | 5 to 15 mph W | 13% |
| Tuesday Night | 53°F | Patchy Smoke then Partly Cloudy | 5 to 15 mph SSW | 6% |
| Wednesday | 88°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SE | 16% |
| Wednesday Night | 50°F | Partly Cloudy | 0 to 10 mph WSW | 6% |
| Thursday | 89°F | Sunny | 0 to 10 mph NE | 7% |
| Thursday Night | 51°F | Mostly Clear | 5 to 15 mph W | 4% |
| Friday | 89°F | Sunny | 5 to 10 mph NNE | 1% |
| Friday Night | 52°F | Mostly Clear | 10 to 15 mph S | 1% |
| Saturday | 89°F | Sunny then Slight Chance Showers And Thunderstorms | 5 mph NW | 12% |
| Saturday Night | 52°F | Partly Cloudy | 10 to 15 mph SSW | 3% |
| Sunday | 89°F | Sunny then Slight Chance Showers And Thunderstorms | 5 mph SSE | 10% |
| Sunday Night | 53°F | Partly Cloudy | 10 to 15 mph SSW | 9% |
| Monday | 88°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph WNW | 13% |
Forecast source: National Weather Service (api.weather.gov) for Antonito (37.076, -106.010). Updated through the day.
Growing snapshot for Antonito
Last spring frost
May 28
First fall frost
Sep 21
Growing season
115 days
Hardiness zone
5a
More local growing data for Antonito: nearby ZIP 81129 weather · frost dates · planting calendar · Colorado frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Manassa, Co (6.4 mi from Antonito). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.