Fishtail, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fishtail, a community in Stillwater County, Montana.
Today
76°F
Patchy Smoke
Patchy smoke. Sunny. High near 76, with temperatures falling to around 73 in the afternoon. East wind 3 to 8 mph.
7-day forecast for Fishtail
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 76°F | Patchy Smoke | 3 to 8 mph E | 5% |
| Tonight | 50°F | Patchy Smoke | 3 to 7 mph SSW | 5% |
| Wednesday | 88°F | Sunny | 2 to 6 mph N | 0% |
| Wednesday Night | 55°F | Mostly Clear | 6 mph WSW | 0% |
| Thursday | 95°F | Sunny | 1 to 6 mph NW | 0% |
| Thursday Night | 59°F | Mostly Clear | 3 to 10 mph WSW | 0% |
| Friday | 101°F | Sunny | 1 to 6 mph ENE | 0% |
| Friday Night | 62°F | Partly Cloudy | 9 mph WNW | 0% |
| Saturday | 98°F | Sunny | 2 to 10 mph NNE | 0% |
| Saturday Night | 62°F | Partly Cloudy | 3 to 10 mph WSW | 1% |
| Sunday | 95°F | Sunny | 3 to 8 mph NNE | 6% |
| Sunday Night | 62°F | Partly Cloudy | 3 to 8 mph NNW | 11% |
| Monday | 92°F | Sunny | 3 to 8 mph N | 7% |
| Monday Night | 60°F | Partly Cloudy | 3 to 9 mph NNW | 11% |
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 Aug 4, 2026.