Delta, UT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Delta, a city in Millard County, Utah.
Today
95°F
Patchy Smoke
Patchy smoke. Sunny. High near 95, with temperatures falling to around 93 in the afternoon. West northwest wind around 7 mph.
7-day forecast for Delta
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 95°F | Patchy Smoke | 7 mph WNW | 0% |
| Tonight | 59°F | Patchy Smoke | 6 to 9 mph NNE | 0% |
| Wednesday | 96°F | Patchy Smoke | 7 mph NW | 0% |
| Wednesday Night | 61°F | Patchy Smoke then Mostly Clear | 7 mph NE | 0% |
| Thursday | 99°F | Sunny | 6 mph SW | 0% |
| Thursday Night | 65°F | Mostly Clear | 7 mph ENE | 0% |
| Friday | 101°F | Sunny | 6 mph SSW | 0% |
| Friday Night | 67°F | Mostly Clear | 6 mph SSE | 0% |
| Saturday | 101°F | Sunny | 7 mph SSW | 0% |
| Saturday Night | 69°F | Partly Cloudy | 8 mph S | 4% |
| Sunday | 100°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 10 mph SSW | 15% |
| Sunday Night | 68°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 13 mph SSW | 13% |
| Monday | 98°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 15 mph SSW | 15% |
| Monday Night | 66°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 13 mph S | 16% |
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 Aug 4, 2026.