Trego, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Trego, a community in Lincoln County, Montana.
Overnight
46°F
Mostly Clear
Mostly clear, with a low around 46. Wind around 0 mph.
7-day forecast for Trego
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 46°F | Mostly Clear | 0 mph | 0% |
| Saturday | 75°F | Sunny | 1 mph E | 1% |
| Saturday Night | 46°F | Partly Cloudy | 1 mph S | 1% |
| Sunday | 76°F | Sunny | 1 mph SSW | 0% |
| Sunday Night | 46°F | Mostly Clear | 1 mph S | 0% |
| Monday | 76°F | Sunny | 3 mph S | 0% |
| Monday Night | 47°F | Mostly Clear | 1 mph SSW | 0% |
| Tuesday | 75°F | Sunny | 2 mph SSW | 0% |
| Tuesday Night | 47°F | Partly Cloudy | 2 mph S | 1% |
| Wednesday | 73°F | Mostly Sunny | 1 to 5 mph S | 0% |
| Wednesday Night | 46°F | Partly Cloudy | 2 mph SSW | 1% |
| Thursday | 71°F | Mostly Sunny | 3 mph SSW | 1% |
| Thursday Night | 47°F | Partly Cloudy | 1 mph S | 7% |
| Friday | 68°F | Slight Chance Light Rain | 2 mph S | 18% |
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
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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 Sep 19, 2026.