Trego, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Trego, a community in Lincoln County, Montana.
Tonight
27°F
Mostly Cloudy
Mostly cloudy, with a low around 27. Wind around 0 mph.
7-day forecast for Trego
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 27°F | Mostly Cloudy | 0 mph | 0% |
| Wednesday | 46°F | Mostly Sunny | 0 mph | 0% |
| Wednesday Night | 28°F | Mostly Clear | 2 mph S | 3% |
| Thursday | 42°F | Partly Sunny | 3 mph SSW | 11% |
| Thursday Night | 31°F | Mostly Cloudy | 3 mph SSW | 9% |
| Friday | 44°F | Mostly Cloudy then Slight Chance Light Rain | 5 mph S | 21% |
| Friday Night | 32°F | Slight Chance Light Rain | 2 to 6 mph S | 21% |
| Saturday | 49°F | Partly Sunny | 3 mph S | 8% |
| Saturday Night | 34°F | Mostly Cloudy then Chance Light Rain | 1 to 6 mph SSE | 49% |
| Sunday | 50°F | Chance Light Rain | 5 to 10 mph SSW | 49% |
| Sunday Night | 33°F | Chance Light Rain then Chance Rain And Snow | 5 mph SSW | 26% |
| Monday | 47°F | Partly Sunny then Slight Chance Light Rain | 2 mph S | 20% |
| Monday Night | 33°F | Slight Chance Light Rain then Slight Chance Rain And Snow | 2 mph S | 21% |
| Tuesday | 49°F | Slight Chance Rain And Snow | 3 mph SSW | 24% |
Forecast source: National Weather Service (api.weather.gov) for Trego (48.653, -114.928). Updated through the day.
Growing snapshot for Trego
Last spring frost
May 16
First fall frost
Sep 18
Growing season
121 days
Hardiness zone
5a
More local growing data for Trego: nearby ZIP 59934 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Eureka
Fortine
Happys Inn
Indian Springs
Libby
Pioneer Junction
Rexford
Stryker
Sylvanite
Troy
West Kootenai
White Haven
Yaak
Climate data from the nearest NOAA station, Fortine 1 N, Mt (9.9 mi from Trego). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.