Delta, UT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Delta, a city in Millard County, Utah.
Tonight
49°F
Scattered Showers And Thunderstorms then Partly Cloudy
Scattered showers and thunderstorms before 9pm, then scattered showers and thunderstorms between 9pm and midnight. Partly cloudy, with a low around 49. West northwest wind 5 to 13 mph. Chance of precipitation is 40%.
7-day forecast for Delta
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 49°F | Scattered Showers And Thunderstorms then Partly Cloudy | 5 to 13 mph WNW | 44% |
| Saturday | 72°F | Sunny | 6 mph NW | 2% |
| Saturday Night | 45°F | Mostly Clear | 7 mph NNE | 0% |
| Sunday | 75°F | Sunny | 5 mph NNE | 0% |
| Sunday Night | 47°F | Partly Cloudy | 6 mph NE | 0% |
| Monday | 79°F | Mostly Sunny | 3 mph NNE | 1% |
| Monday Night | 52°F | Partly Cloudy then Slight Chance Rain Showers | 6 mph NE | 19% |
| Tuesday | 77°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 5 mph SSW | 14% |
| Tuesday Night | 49°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 6 mph ESE | 21% |
| Wednesday | 79°F | Sunny | 5 mph NNE | 3% |
| Wednesday Night | 50°F | Mostly Clear | 5 mph ENE | 2% |
| Thursday | 82°F | Sunny | 3 mph S | 0% |
| Thursday Night | 53°F | Partly Cloudy | 6 mph SE | 2% |
| Friday | 83°F | Mostly Sunny | 5 mph S | 9% |
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.