Gilman, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Gilman, a community in Teton County, Montana.
This Afternoon
55°F
Mostly Sunny
Mostly sunny. High near 55, with temperatures falling to around 48 in the afternoon. South southeast wind 1 to 5 mph.
7-day forecast for Gilman
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 55°F | Mostly Sunny | 1 to 5 mph SSE | 0% |
| Tonight | 31°F | Mostly Cloudy | 3 mph W | 0% |
| Wednesday | 51°F | Mostly Sunny | 2 mph N | 0% |
| Wednesday Night | 30°F | Mostly Clear | 0 to 3 mph WNW | 0% |
| Thursday | 53°F | Mostly Sunny | 3 to 12 mph SW | 0% |
| Thursday Night | 33°F | Partly Cloudy | 7 to 10 mph SW | 1% |
| Friday | 51°F | Mostly Sunny | 7 to 15 mph SW | 4% |
| Friday Night | 36°F | Mostly Cloudy | 9 to 16 mph WSW | 4% |
| Saturday | 55°F | Mostly Sunny | 5 to 9 mph SW | 0% |
| Saturday Night | 38°F | Mostly Cloudy | 7 mph SW | 0% |
| Sunday | 62°F | Partly Sunny | 6 to 16 mph SW | 3% |
| Sunday Night | 38°F | Mostly Cloudy | 3 to 9 mph WSW | 3% |
| Monday | 56°F | Partly Sunny | 5 mph SW | 1% |
| Monday Night | 38°F | Mostly Cloudy | 6 mph SW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Gilman (47.509, -112.358). Updated through the day.
Growing snapshot for Gilman
Last spring frost
May 13
First fall frost
Sep 27
Growing season
135 days
Hardiness zone
4b
More local growing data for Gilman: nearby ZIP 59436 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Augusta
Bynum
Choteau
Dutton
Miller Colony
New Miami Colony
New Rockport Colony
Pendroy
Power
Rockport Colony
Climate data from the nearest NOAA station, Fairfield, Mt (6.2 mi from Gilman). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.