Sylvanite, MT Weather & Growing Conditions
This Afternoon
41°F
Partly Sunny
Partly sunny, with a high near 41. Southwest wind around 1 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 41°F | Partly Sunny | 1 mph SW | 2% |
| Tonight | 30°F | Mostly Cloudy | 2 mph SE | 3% |
| Wednesday | 44°F | Mostly Sunny | 2 mph SSE | 0% |
| Wednesday Night | 31°F | Partly Cloudy then Slight Chance Light Snow | 3 mph S | 16% |
| Thursday | 38°F | Chance Light Snow | 5 mph SW | 42% |
| Thursday Night | 34°F | Slight Chance Light Snow then Mostly Cloudy | 7 mph SW | 23% |
| Friday | 40°F | Chance Light Snow | 7 mph SSW | 27% |
| Friday Night | 34°F | Chance Light Rain then Mostly Cloudy | 3 to 9 mph SSW | 27% |
| Saturday | 43°F | Partly Sunny | 3 mph S | 10% |
| Saturday Night | 36°F | Mostly Cloudy then Chance Light Rain | 2 to 6 mph SE | 40% |
| Sunday | 46°F | Chance Light Rain | 8 mph SSW | 41% |
| Sunday Night | 35°F | Chance Light Rain | 3 to 7 mph SW | 28% |
| Monday | 43°F | Slight Chance Light Rain | 3 mph S | 20% |
| Monday Night | 36°F | Chance Light Rain | 5 mph SSE | 38% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Sylvanite, MT
Last spring frost
May 14
First fall frost
Sep 25
Growing season
132 days
Hardiness zone
6a
Explore more for Sylvanite, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Troy, Mt (12.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.