Alton, UT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Alton, a town in Kane County, Utah.
Today
91°F
Sunny
Sunny, with a high near 91. West southwest wind around 9 mph.
7-day forecast for Alton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 91°F | Sunny | 9 mph WSW | 0% |
| Tonight | 54°F | Mostly Clear | 1 to 9 mph W | 0% |
| Wednesday | 91°F | Sunny | 1 to 8 mph W | 1% |
| Wednesday Night | 53°F | Mostly Clear | 1 to 8 mph WNW | 0% |
| Thursday | 90°F | Sunny then Slight Chance Showers And Thunderstorms | 3 mph WNW | 17% |
| Thursday Night | 54°F | Partly Cloudy | 0 to 3 mph NW | 1% |
| Friday | 91°F | Sunny | 0 to 6 mph SW | 8% |
| Friday Night | 54°F | Partly Cloudy | 2 mph WNW | 2% |
| Saturday | 91°F | Sunny then Slight Chance Showers And Thunderstorms | 2 to 6 mph WNW | 13% |
| Saturday Night | 55°F | Partly Cloudy | 3 mph NW | 5% |
| Sunday | 89°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 mph W | 24% |
| Sunday Night | 56°F | Partly Cloudy | 0 to 5 mph WNW | 9% |
| Monday | 87°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 to 6 mph WSW | 43% |
| Monday Night | 53°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph WNW | 15% |
Forecast source: National Weather Service (api.weather.gov) for Alton (37.427, -112.510). Updated through the day.
Growing snapshot for Alton
Last spring frost
Jun 1
First fall frost
Sep 30
Growing season
120 days
Hardiness zone
6a
More local growing data for Alton: nearby ZIP 84710 weather · frost dates · planting calendar · Utah frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Alton, Ut (2.5 mi from Alton). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.