Delta, UT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Delta, a city in Millard County, Utah.
Overnight
49°F
Mostly Clear
Mostly clear. Low around 49, with temperatures rising to around 51 overnight. North northwest wind around 7 mph.
7-day forecast for Delta
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 49°F | Mostly Clear | 7 mph NNW | 3% |
| Saturday | 73°F | Sunny | 7 mph NW | 1% |
| Saturday Night | 43°F | Mostly Clear | 8 mph N | 2% |
| Sunday | 75°F | Sunny | 5 mph N | 0% |
| Sunday Night | 45°F | Partly Cloudy | 6 mph NE | 0% |
| Monday | 80°F | Mostly Sunny | 5 mph NNW | 0% |
| Monday Night | 50°F | Mostly Cloudy then Slight Chance Rain Showers | 7 mph ENE | 15% |
| Tuesday | 76°F | Chance Showers And Thunderstorms | 6 mph SSW | 35% |
| Tuesday Night | 45°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 to 7 mph ESE | 12% |
| Wednesday | 80°F | Sunny | 5 mph S | 3% |
| Wednesday Night | 48°F | Mostly Clear | 5 mph E | 1% |
| Thursday | 83°F | Sunny | 3 mph SSE | 0% |
| Thursday Night | 52°F | Partly Cloudy | 6 mph S | 1% |
| Friday | 83°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 mph SSW | 10% |
Forecast source: National Weather Service (api.weather.gov) for Delta (39.363, -112.544). Updated through the day.
Growing snapshot for Delta
Last spring frost
May 16
First fall frost
Sep 29
Growing season
137 days
Hardiness zone
6a
More local growing data for Delta: nearby ZIP 84624 weather · frost dates · planting calendar · Utah frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Delta, Ut (3.1 mi from Delta). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.