Nephi, UT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Nephi, a city in Juab County, Utah.
This Afternoon
75°F
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy. High near 75, with temperatures falling to around 72 in the afternoon. Southwest wind around 6 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Nephi
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 75°F | Showers And Thunderstorms | 6 mph SW | 75% |
| Tonight | 47°F | Chance Showers And Thunderstorms then Partly Cloudy | 1 to 6 mph NNE | 62% |
| Saturday | 70°F | Sunny | 1 to 6 mph WNW | 8% |
| Saturday Night | 43°F | Mostly Clear | 2 to 6 mph NE | 0% |
| Sunday | 73°F | Sunny | 3 mph N | 0% |
| Sunday Night | 45°F | Partly Cloudy | 5 mph NE | 0% |
| Monday | 78°F | Mostly Sunny | 3 mph WSW | 1% |
| Monday Night | 50°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 mph ENE | 19% |
| Tuesday | 76°F | Chance Showers And Thunderstorms | 2 mph SSE | 49% |
| Tuesday Night | 46°F | Chance Showers And Thunderstorms then Partly Cloudy | 3 mph SE | 33% |
| Wednesday | 77°F | Sunny | 3 mph SW | 8% |
| Wednesday Night | 48°F | Mostly Clear | 3 mph ENE | 2% |
| Thursday | 80°F | Mostly Sunny | 2 mph SSE | 4% |
| Thursday Night | 51°F | Partly Cloudy | 5 mph SSE | 6% |
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 Sep 19, 2026.