Castle Valley, CO Weather & Growing Conditions
Today
90°F
Patchy Smoke
Patchy smoke. Sunny, with a high near 90. West wind 5 to 15 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 90°F | Patchy Smoke | 5 to 15 mph W | 0% |
| Tonight | 65°F | Patchy Smoke then Mostly Clear | 5 to 15 mph NNW | 0% |
| Wednesday | 88°F | Sunny then Patchy Smoke | 5 to 10 mph WSW | 0% |
| Wednesday Night | 65°F | Patchy Smoke then Mostly Clear | 0 to 10 mph E | 0% |
| Thursday | 90°F | Sunny | 0 to 10 mph N | 0% |
| Thursday Night | 66°F | Mostly Clear | 5 to 10 mph NE | 0% |
| Friday | 90°F | Sunny | 0 to 10 mph SSW | 0% |
| Friday Night | 67°F | Mostly Clear | 5 to 10 mph NE | 0% |
| Saturday | 90°F | Sunny | 5 to 10 mph SSW | 0% |
| Saturday Night | 69°F | Mostly Clear | 5 to 10 mph NNE | 0% |
| Sunday | 89°F | Sunny | 5 to 10 mph SW | 3% |
| Sunday Night | 69°F | Partly Cloudy | 5 to 10 mph WSW | 5% |
| Monday | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 to 10 mph SW | 26% |
| Monday Night | 67°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 to 10 mph W | 23% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Castle Valley, CO
Last spring frost
Apr 20
First fall frost
Oct 21
Growing season
182 days
Hardiness zone
6b
Explore more for Castle Valley, CO: full frost dates · planting calendar · Colorado frost dates
Climate data from the nearest NOAA station, Gateway 1Ene, Co (2.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.