Alta, WY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Alta, a community in Teton County, Wyoming.
Overnight
47°F
Areas Of Smoke
Areas of smoke. Mostly clear. Low around 47, with temperatures rising to around 51 overnight. East southeast wind around 3 mph.
7-day forecast for Alta
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 47°F | Areas Of Smoke | 3 mph ESE | 0% |
| Tuesday | 76°F | Areas Of Smoke | 1 to 8 mph WSW | 0% |
| Tuesday Night | 49°F | Smoke | 2 to 8 mph SE | 0% |
| Wednesday | 79°F | Sunny | 1 to 8 mph SW | 0% |
| Wednesday Night | 52°F | Mostly Clear | 3 to 7 mph S | 0% |
| Thursday | 84°F | Sunny | 3 to 9 mph SSW | 0% |
| Thursday Night | 56°F | Clear | 3 to 7 mph SSW | 0% |
| Friday | 88°F | Sunny | 3 to 9 mph SSW | 0% |
| Friday Night | 58°F | Mostly Clear | 9 mph S | 0% |
| Saturday | 88°F | Sunny | 3 to 10 mph SSW | 0% |
| Saturday Night | 60°F | Mostly Clear | 8 mph S | 0% |
| Sunday | 88°F | Sunny | 2 to 12 mph SSW | 2% |
| Sunday Night | 59°F | Mostly Clear | 8 to 12 mph SSW | 1% |
| Monday | 86°F | Sunny | 3 to 10 mph SW | 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 Aug 4, 2026.