Trego, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Trego, a community in Lincoln County, Montana.
Today
79°F
Mostly Sunny
Mostly sunny, with a high near 79. Northwest wind around 2 mph.
7-day forecast for Trego
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 79°F | Mostly Sunny | 2 mph NW | 0% |
| Tonight | 46°F | Mostly Clear | 2 mph WSW | 0% |
| Wednesday | 85°F | Sunny | 2 mph SW | 0% |
| Wednesday Night | 50°F | Mostly Clear | 3 mph SSW | 0% |
| Thursday | 92°F | Sunny | 0 to 5 mph SSW | 0% |
| Thursday Night | 53°F | Mostly Clear | 0 to 5 mph SW | 0% |
| Friday | 93°F | Sunny | 0 to 6 mph SSW | 0% |
| Friday Night | 53°F | Mostly Clear | 2 to 9 mph SSW | 0% |
| Saturday | 89°F | Sunny | 2 to 7 mph SSW | 0% |
| Saturday Night | 52°F | Mostly Clear | 1 to 7 mph SSW | 0% |
| Sunday | 86°F | Sunny | 3 mph SSW | 0% |
| Sunday Night | 51°F | Mostly Clear | 0 to 5 mph WSW | 1% |
| Monday | 85°F | Sunny | 2 mph W | 3% |
| Monday Night | 50°F | Mostly Clear | 2 mph NW | 1% |
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 Aug 4, 2026.