Alta, WY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Alta, a community in Teton County, Wyoming.
Overnight
33°F
Cloudy
Cloudy, with a low around 33. East wind around 2 mph.
7-day forecast for Alta
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 33°F | Cloudy | 2 mph E | 0% |
| Wednesday | 49°F | Mostly Cloudy | 1 to 5 mph WNW | 0% |
| Wednesday Night | 29°F | Mostly Clear | 0 to 3 mph ESE | 0% |
| Thursday | 45°F | Mostly Sunny then Chance Rain And Snow Showers | 0 to 5 mph WSW | 30% |
| Thursday Night | 30°F | Chance Rain And Snow Showers | 2 mph SW | 30% |
| Friday | 44°F | Mostly Sunny | 2 mph W | 1% |
| Friday Night | 28°F | Partly Cloudy | 2 mph S | 0% |
| Saturday | 50°F | Sunny | 2 mph SW | 0% |
| Saturday Night | 32°F | Mostly Clear | 5 mph SE | 0% |
| Sunday | 57°F | Mostly Sunny | 6 mph S | 0% |
| Sunday Night | 35°F | Partly Cloudy | 2 to 6 mph SSE | 0% |
| Monday | 56°F | Mostly Sunny | 5 mph S | 0% |
| Monday Night | 36°F | Mostly Cloudy | 5 mph SSE | 2% |
| Tuesday | 54°F | Mostly Sunny | 3 mph S | 4% |
Forecast source: National Weather Service (api.weather.gov) for Alta (43.774, -111.031). Updated through the day.
Growing snapshot for Alta
Last spring frost
Jun 14
First fall frost
Sep 11
Growing season
85 days
Hardiness zone
5a
More local growing data for Alta: nearby ZIP 83414 weather · frost dates · planting calendar · Wyoming frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Alta 1 Nnw, Wy (7.8 mi from Alta). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.