Junction, UT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Junction, a town in Piute County, Utah.
Tonight
45°F
Scattered Showers And Thunderstorms then Partly Cloudy
Scattered showers and thunderstorms before midnight. Partly cloudy. Low around 45, with temperatures rising to around 50 overnight. South southwest wind 2 to 13 mph. Chance of precipitation is 40%.
7-day forecast for Junction
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 45°F | Scattered Showers And Thunderstorms then Partly Cloudy | 2 to 13 mph SSW | 39% |
| Saturday | 72°F | Sunny | 1 to 12 mph SW | 2% |
| Saturday Night | 43°F | Mostly Clear | 1 to 9 mph NNE | 0% |
| Sunday | 74°F | Sunny | 1 to 5 mph NNW | 0% |
| Sunday Night | 46°F | Partly Cloudy | 0 to 8 mph NNE | 0% |
| Monday | 74°F | Mostly Sunny | 1 to 7 mph SSE | 5% |
| Monday Night | 47°F | Chance Showers And Thunderstorms | 2 to 7 mph SSE | 42% |
| Tuesday | 69°F | Showers And Thunderstorms Likely | 2 to 7 mph SE | 70% |
| Tuesday Night | 43°F | Chance Showers And Thunderstorms then Partly Cloudy | 2 to 6 mph S | 28% |
| Wednesday | 71°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 1 to 5 mph SSE | 19% |
| Wednesday Night | 45°F | Mostly Clear | 1 to 5 mph SSE | 8% |
| Thursday | 73°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 2 to 6 mph SSE | 16% |
| Thursday Night | 47°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 5 mph S | 15% |
| Friday | 72°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 to 6 mph S | 28% |
Forecast source: National Weather Service (api.weather.gov) for Junction (38.236, -112.225). Updated through the day.
Growing snapshot for Junction
Last spring frost
May 23
First fall frost
Sep 27
Growing season
125 days
Hardiness zone
5b
More local growing data for Junction: nearby ZIP 84743 weather · frost dates · planting calendar · Utah frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Circleville, Ut (5.7 mi from Junction). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.