Fishtail, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fishtail, a community in Stillwater County, Montana.
Tonight
31°F
Partly Cloudy
Partly cloudy, with a low around 31. West southwest wind around 3 mph.
7-day forecast for Fishtail
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 31°F | Partly Cloudy | 3 mph WSW | 0% |
| Wednesday | 56°F | Sunny | 5 mph NNE | 0% |
| Wednesday Night | 30°F | Mostly Clear | 5 mph S | 0% |
| Thursday | 58°F | Sunny | 0 to 5 mph ESE | 3% |
| Thursday Night | 33°F | Partly Cloudy | 0 to 7 mph SW | 5% |
| Friday | 59°F | Sunny | 0 to 7 mph SSW | 7% |
| Friday Night | 35°F | Partly Cloudy | 3 to 9 mph SW | 7% |
| Saturday | 63°F | Sunny | 1 to 7 mph SSE | 0% |
| Saturday Night | 37°F | Partly Cloudy | 3 to 7 mph SW | 0% |
| Sunday | 68°F | Mostly Sunny | 1 to 5 mph SSW | 0% |
| Sunday Night | 39°F | Partly Cloudy | 2 to 9 mph SW | 0% |
| Monday | 61°F | Mostly Sunny | 2 mph SE | 1% |
| Monday Night | 38°F | Partly Cloudy | 1 to 5 mph SW | 1% |
| Tuesday | 64°F | Mostly Sunny | 3 mph W | 3% |
Forecast source: National Weather Service (api.weather.gov) for Fishtail (45.448, -109.508). Updated through the day.
Growing snapshot for Fishtail
Last spring frost
Jun 1
First fall frost
Sep 11
Growing season
100 days
Hardiness zone
5a
More local growing data for Fishtail: nearby ZIP 59001 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Nye #2, Mt (14.6 mi from Fishtail). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.