Fort Garland, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fort Garland, a community in Costilla County, Colorado.
This Afternoon
67°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Partly sunny, with a high near 67. Southwest wind 15 to 20 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Fort Garland
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 67°F | Chance Showers And Thunderstorms | 15 to 20 mph SW | 44% |
| Tonight | 45°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 5 to 15 mph SW | 23% |
| Saturday | 71°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 25 mph WSW | 15% |
| Saturday Night | 42°F | Mostly Clear | 5 to 20 mph S | 3% |
| Sunday | 70°F | Sunny | 5 to 15 mph SSW | 0% |
| Sunday Night | 42°F | Mostly Clear | 5 to 10 mph SE | 4% |
| Monday | 70°F | Mostly Sunny | 0 to 15 mph S | 1% |
| Monday Night | 44°F | Partly Cloudy | 10 mph SE | 3% |
| Tuesday | 69°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 to 15 mph SSW | 52% |
| Tuesday Night | 44°F | Chance Showers And Thunderstorms | 5 to 10 mph SSW | 51% |
| Wednesday | 65°F | Rain Showers Likely then Chance Showers And Thunderstorms | 5 to 10 mph SW | 55% |
| Wednesday Night | 44°F | Chance Showers And Thunderstorms | 5 mph S | 38% |
| Thursday | 66°F | Chance Rain Showers then Chance Showers And Thunderstorms | 5 to 10 mph SSE | 48% |
| Thursday Night | 44°F | Chance Showers And Thunderstorms | 5 to 10 mph SE | 39% |
Forecast source: National Weather Service (api.weather.gov) for Fort Garland (37.428, -105.435). Updated through the day.
Growing snapshot for Fort Garland
Last spring frost
May 25
First fall frost
Sep 22
Growing season
117 days
Hardiness zone
5b
More local growing data for Fort Garland: nearby ZIP 81133 weather · frost dates · planting calendar · Colorado frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Blanca 4 Nw, Co (13.5 mi from Fort Garland). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.