Nephi, UT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Nephi, a city in Juab County, Utah.
Today
94°F
Patchy Smoke
Patchy smoke. Sunny, with a high near 94. Northwest wind 3 to 13 mph.
7-day forecast for Nephi
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 94°F | Patchy Smoke | 3 to 13 mph NW | 0% |
| Tonight | 55°F | Patchy Smoke | 2 to 13 mph NE | 0% |
| Wednesday | 95°F | Patchy Smoke | 2 to 9 mph NW | 0% |
| Wednesday Night | 57°F | Patchy Smoke | 3 to 12 mph NE | 0% |
| Thursday | 99°F | Patchy Smoke then Sunny | 2 to 7 mph SSW | 0% |
| Thursday Night | 61°F | Mostly Clear | 3 to 8 mph ENE | 0% |
| Friday | 100°F | Sunny | 2 to 8 mph SSW | 0% |
| Friday Night | 62°F | Mostly Clear | 3 to 9 mph ENE | 0% |
| Saturday | 100°F | Sunny | 2 to 8 mph SSW | 2% |
| Saturday Night | 65°F | Partly Cloudy | 5 to 8 mph SSE | 2% |
| Sunday | 98°F | Mostly Sunny | 5 to 8 mph SSW | 3% |
| Sunday Night | 66°F | Partly Cloudy | 5 to 9 mph SE | 8% |
| Monday | 96°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 8 mph SSW | 17% |
| Monday Night | 63°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 8 mph ESE | 19% |
Forecast source: National Weather Service (api.weather.gov) for Nephi (39.705, -111.833). Updated through the day.
Growing snapshot for Nephi
Last spring frost
May 6
First fall frost
Oct 10
Growing season
156 days
Hardiness zone
6a
More local growing data for Nephi: nearby ZIP 84648 weather · frost dates · planting calendar · Utah frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Nephi, Ut (2.6 mi from Nephi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.