Shelby, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Shelby, a city in Toole County, Montana.
Overnight
41°F
Mostly Clear
Mostly clear, with a low around 41. West wind around 3 mph.
7-day forecast for Shelby
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 41°F | Mostly Clear | 3 mph W | 0% |
| Tuesday | 76°F | Sunny | 5 mph WSW | 1% |
| Tuesday Night | 50°F | Mostly Clear | 3 to 7 mph WSW | 1% |
| Wednesday | 83°F | Mostly Sunny | 8 mph NW | 0% |
| Wednesday Night | 52°F | Mostly Clear | 7 mph WSW | 0% |
| Thursday | 90°F | Sunny | 3 to 10 mph NW | 0% |
| Thursday Night | 54°F | Mostly Clear | 2 to 12 mph ENE | 0% |
| Friday | 93°F | Sunny | 2 to 17 mph NNW | 0% |
| Friday Night | 57°F | Mostly Clear | 10 to 15 mph W | 0% |
| Saturday | 89°F | Sunny | 7 to 10 mph NW | 0% |
| Saturday Night | 56°F | Partly Cloudy | 7 to 14 mph NW | 0% |
| Sunday | 84°F | Mostly Sunny | 9 mph NNW | 1% |
| Sunday Night | 55°F | Partly Cloudy | 10 mph NNE | 7% |
| Monday | 82°F | Mostly Sunny | 9 mph NE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Shelby (48.502, -111.862). Updated through the day.
Growing snapshot for Shelby
Last spring frost
May 23
First fall frost
Sep 16
Growing season
115 days
Hardiness zone
4a
More local growing data for Shelby: nearby ZIP 59474 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Camrose Colony
Cut Bank
Eagle Creek Colony
Glacier Colony
Hillside Colony
Horizon Colony
Kevin
Rimrock Colony
Santa Rita
Sunburst
Sweet Grass
Climate data from the nearest NOAA station, Shelby, Mt (7.6 mi from Shelby). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.