Grant, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Grant, a community in Beaverhead County, Montana.
This Afternoon
46°F
Mostly Sunny
Mostly sunny. High near 46, with temperatures falling to around 41 in the afternoon. East wind around 3 mph.
7-day forecast for Grant
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 46°F | Mostly Sunny | 3 mph E | 0% |
| Tonight | 25°F | Mostly Cloudy | 3 mph WNW | 0% |
| Wednesday | 49°F | Mostly Sunny | 1 mph SSE | 0% |
| Wednesday Night | 24°F | Mostly Clear then Patchy Fog | 1 to 5 mph S | 1% |
| Thursday | 47°F | Patchy Fog then Mostly Sunny | 5 mph SSW | 7% |
| Thursday Night | 24°F | Partly Cloudy | 6 mph SW | 7% |
| Friday | 48°F | Mostly Sunny | 7 mph SW | 5% |
| Friday Night | 25°F | Partly Cloudy | 6 to 9 mph SW | 5% |
| Saturday | 51°F | Mostly Sunny | 6 mph SSW | 0% |
| Saturday Night | 26°F | Partly Cloudy | 5 to 8 mph S | 0% |
| Sunday | 55°F | Mostly Sunny | 7 mph S | 0% |
| Sunday Night | 28°F | Partly Cloudy | 5 to 8 mph S | 0% |
| Monday | 54°F | Partly Sunny | 5 mph S | 1% |
| Monday Night | 29°F | Mostly Cloudy | 5 to 8 mph S | 1% |
Forecast source: National Weather Service (api.weather.gov) for Grant (45.010, -113.067). Updated through the day.
Growing snapshot for Grant
Growing season
72 days
Hardiness zone
5a
More local growing data for Grant: nearby ZIP 59725 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Dillon 18 Wsw, Mt (10.2 mi from Grant). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.