Alta, WY Weather & Growing Conditions
This Afternoon
52°F
Patchy Fog
Patchy fog and showers and thunderstorms likely before 3pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 52. West wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 52°F | Patchy Fog | 5 mph W | 72% |
| Tonight | 39°F | Chance Showers And Thunderstorms | 0 to 3 mph NNW | 50% |
| Sunday | 54°F | Patchy Fog then Slight Chance Rain Showers | 0 to 6 mph NW | 15% |
| Sunday Night | 39°F | Partly Cloudy | 3 mph ESE | 0% |
| Monday | 61°F | Sunny | 6 mph WSW | 0% |
| Monday Night | 43°F | Mostly Clear | 3 to 7 mph E | 0% |
| Tuesday | 64°F | Mostly Sunny | 7 mph SSW | 2% |
| Tuesday Night | 46°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 mph SSE | 34% |
| Wednesday | 62°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 7 mph SSW | 19% |
| Wednesday Night | 45°F | Mostly Clear | 6 mph S | 5% |
| Thursday | 66°F | Sunny | 7 mph S | 3% |
| Thursday Night | 48°F | Mostly Clear | 8 mph SE | 1% |
| Friday | 66°F | Mostly Sunny | 9 mph SSE | 4% |
| Friday Night | 47°F | Partly Cloudy | 8 mph SSE | 12% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Alta, WY
Last spring frost
Jun 14
First fall frost
Sep 11
Growing season
85 days
Hardiness zone
5a
Explore more for Alta, WY: full frost dates · planting calendar · Wyoming frost dates
Climate data from the nearest NOAA station, Alta 1 Nnw, Wy (7.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.