West Yellowstone, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for West Yellowstone, a town in Gallatin County, Montana.
Tonight
38°F
Showers And Thunderstorms then Chance Light Rain
Showers and thunderstorms before 9pm, then patchy fog and a chance of showers and thunderstorms between 9pm and midnight, then a chance of rain and patchy fog. Cloudy. Low around 38, with temperatures rising to around 42 overnight. South wind around 3 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for West Yellowstone
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 38°F | Showers And Thunderstorms then Chance Light Rain | 3 mph S | 84% |
| Saturday | 54°F | Light Rain Likely then Chance Showers And Thunderstorms | 1 to 6 mph SW | 77% |
| Saturday Night | 35°F | Showers And Thunderstorms Likely then Patchy Fog | 0 to 3 mph SW | 56% |
| Sunday | 62°F | Areas Of Fog then Slight Chance Light Rain | 2 mph NW | 24% |
| Sunday Night | 30°F | Partly Cloudy | 1 mph NW | 4% |
| Monday | 68°F | Sunny | 0 to 3 mph WNW | 1% |
| Monday Night | 31°F | Mostly Clear | 0 to 3 mph WSW | 0% |
| Tuesday | 70°F | Mostly Sunny | 0 to 3 mph WNW | 1% |
| Tuesday Night | 32°F | Partly Cloudy | 1 mph SSW | 5% |
| Wednesday | 69°F | Sunny | 0 to 8 mph WNW | 5% |
| Wednesday Night | 32°F | Mostly Clear | 0 to 5 mph WNW | 3% |
| Thursday | 72°F | Sunny | 0 to 5 mph WNW | 4% |
| Thursday Night | 34°F | Partly Cloudy | 2 mph N | 1% |
| Friday | 71°F | Mostly Sunny | 0 to 8 mph WSW | 3% |
Forecast source: National Weather Service (api.weather.gov) for West Yellowstone (44.662, -111.107). Updated through the day.
Growing snapshot for West Yellowstone
Last spring frost
Jun 15
First fall frost
Sep 10
Growing season
87 days
Hardiness zone
4b
More local growing data for West Yellowstone: nearby ZIP 59758 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Amsterdam
Belgrade
Bozeman
Bridger
Churchill
Four Corners
Gallatin Gateway
Gallatin River Ranch
Hebgen Lake Estates
King Arthur Park
Logan
Manhattan
Ponderosa Pines
Springhill
Three Forks
Wheatland
Willow Creek
Climate data from the nearest NOAA station, Hebgen Dam, Mt (8.6 mi from West Yellowstone). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.