Castle Dale, UT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Castle Dale, a city in Emery County, Utah.
Tonight
42°F
Mostly Clear
Mostly clear. Low around 42, with temperatures rising to around 45 overnight. Northwest wind 5 to 9 mph.
7-day forecast for Castle Dale
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 42°F | Mostly Clear | 5 to 9 mph NW | 1% |
| Sunday | 71°F | Sunny | 5 mph SE | 1% |
| Sunday Night | 44°F | Partly Cloudy | 3 mph NNW | 0% |
| Monday | 73°F | Mostly Sunny | 2 to 6 mph SE | 0% |
| Monday Night | 48°F | Partly Cloudy | 1 to 5 mph NNW | 9% |
| Tuesday | 71°F | Showers And Thunderstorms Likely | 2 to 10 mph ENE | 55% |
| Tuesday Night | 46°F | Showers And Thunderstorms Likely | 0 to 7 mph W | 55% |
| Wednesday | 70°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph E | 16% |
| Wednesday Night | 47°F | Mostly Clear | 1 to 5 mph WNW | 8% |
| Thursday | 73°F | Sunny | 1 to 7 mph NE | 6% |
| Thursday Night | 48°F | Partly Cloudy | 0 to 3 mph SW | 13% |
| Friday | 72°F | Chance Showers And Thunderstorms | 1 to 6 mph ESE | 29% |
| Friday Night | 49°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph WSW | 20% |
| Saturday | 72°F | Mostly Sunny then Chance Showers And Thunderstorms | 1 to 6 mph S | 33% |
Forecast source: National Weather Service (api.weather.gov) for Castle Dale (39.222, -111.023). Updated through the day.
Growing snapshot for Castle Dale
Last spring frost
May 18
First fall frost
Sep 27
Growing season
128 days
Hardiness zone
6a
More local growing data for Castle Dale: nearby ZIP 84513 weather · frost dates · planting calendar · Utah frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Castle Dale, Ut (3.5 mi from Castle Dale). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.