Philipsburg, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Philipsburg, a town in Granite County, Montana.
This Afternoon
68°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 5pm, then showers and thunderstorms likely. Cloudy, with a high near 68. North wind around 5 mph. Chance of precipitation is 70%.
7-day forecast for Philipsburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Chance Showers And Thunderstorms | 5 mph N | 74% |
| Tonight | 43°F | Showers And Thunderstorms | 3 mph NE | 98% |
| Saturday | 61°F | Patchy Fog | 3 mph NNE | 82% |
| Saturday Night | 38°F | Mostly Cloudy then Areas Of Fog | 2 mph ENE | 7% |
| Sunday | 71°F | Areas Of Fog then Sunny | 0 to 3 mph NW | 1% |
| Sunday Night | 40°F | Mostly Clear | 3 mph SSE | 0% |
| Monday | 74°F | Sunny | 3 mph SW | 0% |
| Monday Night | 42°F | Mostly Clear | 3 mph SW | 0% |
| Tuesday | 74°F | Sunny | 3 mph SW | 1% |
| Tuesday Night | 42°F | Mostly Clear | 2 mph S | 2% |
| Wednesday | 74°F | Sunny | 1 to 6 mph SW | 3% |
| Wednesday Night | 42°F | Mostly Clear | 3 mph SW | 3% |
| Thursday | 77°F | Sunny | 3 mph SSW | 0% |
| Thursday Night | 44°F | Partly Cloudy | 2 to 7 mph S | 1% |
Forecast source: National Weather Service (api.weather.gov) for Philipsburg (46.332, -113.296). Updated through the day.
Growing snapshot for Philipsburg
Growing season
65 days
Hardiness zone
5a
More local growing data for Philipsburg: nearby ZIP 59858 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Phillipsburg Rs, Mt (8.3 mi from Philipsburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.