South Hills, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for South Hills, a community in Lewis And Clark County, Montana.
Overnight
30°F
Partly Cloudy
Partly cloudy, with a low around 30. Wind around 0 mph.
7-day forecast for South Hills
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 30°F | Partly Cloudy | 0 mph | 0% |
| Wednesday | 45°F | Mostly Sunny | 0 to 3 mph NW | 0% |
| Wednesday Night | 30°F | Mostly Clear | 2 to 7 mph SW | 0% |
| Thursday | 45°F | Partly Sunny | 2 to 6 mph WSW | 2% |
| Thursday Night | 32°F | Partly Cloudy | 6 to 9 mph SW | 2% |
| Friday | 47°F | Mostly Sunny | 5 to 8 mph SW | 0% |
| Friday Night | 38°F | Mostly Cloudy | 5 to 15 mph SSW | 0% |
| Saturday | 52°F | Mostly Sunny | 2 to 6 mph SSE | 0% |
| Saturday Night | 39°F | Partly Cloudy | 2 to 9 mph S | 0% |
| Sunday | 57°F | Mostly Sunny | 5 to 8 mph SSW | 4% |
| Sunday Night | 37°F | Partly Cloudy | 2 to 8 mph WSW | 4% |
| Monday | 49°F | Mostly Sunny | 3 mph S | 1% |
| Monday Night | 38°F | Mostly Cloudy | 5 mph SSW | 1% |
| Tuesday | 54°F | Mostly Sunny | 6 mph SW | 2% |
Forecast source: National Weather Service (api.weather.gov) for South Hills (46.556, -111.998). Updated through the day.
Growing snapshot for South Hills
Last spring frost
May 9
First fall frost
Sep 30
Growing season
142 days
Hardiness zone
5a
More local growing data for South Hills: nearby ZIP 59623 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Canyon Creek
Craig
East Helena
Helena
Helena Valley Northeast
Helena Valley Northwest
Helena Valley Southeast
Helena Valley West Central
Helena West Side
Lincoln
Marysville
Milford Colony
Montana City
Rimini
Spokane Creek
Unionville
Wolf Creek
York
Climate data from the nearest NOAA station, Helena Rgnl Ap, Mt (3.8 mi from South Hills). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.