West Yellowstone, WY Weather & Growing Conditions
This Afternoon
41°F
Sunny
Sunny. High near 41, with temperatures falling to around 34 in the afternoon. South wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 41°F | Sunny | 3 mph S | 0% |
| Tonight | 21°F | Partly Cloudy | 5 mph SE | 0% |
| Wednesday | 45°F | Partly Sunny | 5 mph ENE | 0% |
| Wednesday Night | 20°F | Mostly Clear | 5 mph SSW | 0% |
| Thursday | 38°F | Mostly Sunny then Chance Snow Showers | 5 mph SSW | 27% |
| Thursday Night | 22°F | Chance Snow Showers | 2 to 8 mph SW | 27% |
| Friday | 35°F | Mostly Sunny | 5 to 8 mph SW | 9% |
| Friday Night | 21°F | Partly Cloudy | 5 mph SW | 9% |
| Saturday | 42°F | Mostly Sunny | 3 mph SW | 0% |
| Saturday Night | 23°F | Mostly Clear | 2 to 6 mph S | 0% |
| Sunday | 46°F | Mostly Sunny | 7 mph SSW | 0% |
| Sunday Night | 25°F | Partly Cloudy | 6 mph SSW | 1% |
| Monday | 46°F | Mostly Sunny | 5 mph SSW | 3% |
| Monday Night | 26°F | Partly Cloudy | 2 to 6 mph SSW | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for West Yellowstone, WY
Growing season
28 days
Hardiness zone
4b
Explore more for West Yellowstone, WY: full frost dates · planting calendar · Wyoming frost dates
Climate data from the nearest NOAA station, Old Faithful, Wy (10 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.