Alton, UT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Alton, a town in Kane County, Utah.
This Afternoon
49°F
Mostly Sunny
Mostly sunny. High near 49, with temperatures falling to around 45 in the afternoon. Southeast wind around 5 mph.
7-day forecast for Alton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 49°F | Mostly Sunny | 5 mph SE | 1% |
| Tonight | 30°F | Mostly Clear | 2 mph ENE | 4% |
| Wednesday | 49°F | Sunny | 0 to 6 mph NW | 4% |
| Wednesday Night | 27°F | Mostly Clear | 3 to 9 mph N | 0% |
| Thursday | 50°F | Mostly Sunny | 0 to 3 mph NE | 0% |
| Thursday Night | 30°F | Mostly Clear | 0 to 10 mph N | 0% |
| Friday | 53°F | Sunny | 0 to 12 mph NNE | 0% |
| Friday Night | 31°F | Mostly Clear | 0 to 10 mph N | 0% |
| Saturday | 56°F | Sunny | 0 to 10 mph NE | 0% |
| Saturday Night | 32°F | Clear | 2 mph NNE | 0% |
| Sunday | 57°F | Sunny | 0 to 3 mph ENE | 1% |
| Sunday Night | 34°F | Mostly Clear | 0 mph | 1% |
| Monday | 56°F | Mostly Sunny | 0 to 3 mph NE | 4% |
| Monday Night | 34°F | Partly Cloudy | 1 mph N | 2% |
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 Nov 3, 2026.