Silesia, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Silesia, a community in Carbon County, Montana.
This Afternoon
60°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy. High near 60, with temperatures falling to around 58 in the afternoon. North northwest wind around 15 mph. Chance of precipitation is 100%.
7-day forecast for Silesia
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 60°F | Showers And Thunderstorms | 15 mph NNW | 96% |
| Tonight | 47°F | Showers And Thunderstorms | 10 to 14 mph NW | 94% |
| Sunday | 63°F | Rain Showers Likely | 6 to 9 mph NW | 68% |
| Sunday Night | 46°F | Patchy Fog | 5 mph ESE | 13% |
| Monday | 73°F | Patchy Fog then Mostly Sunny | 2 to 6 mph S | 0% |
| Monday Night | 46°F | Mostly Clear | 6 mph SSE | 0% |
| Tuesday | 79°F | Sunny | 6 mph SSW | 0% |
| Tuesday Night | 50°F | Partly Cloudy | 6 mph SSE | 10% |
| Wednesday | 79°F | Mostly Sunny | 7 mph SSW | 6% |
| Wednesday Night | 51°F | Mostly Clear | 5 to 10 mph S | 3% |
| Thursday | 81°F | Sunny | 10 to 16 mph SSW | 1% |
| Thursday Night | 51°F | Mostly Clear | 7 to 10 mph SSE | 3% |
| Friday | 81°F | Mostly Sunny | 10 to 14 mph S | 1% |
| Friday Night | 50°F | Partly Cloudy | 12 mph SSW | 9% |
Forecast source: National Weather Service (api.weather.gov) for Silesia (45.549, -108.838). Updated through the day.
Growing snapshot for Silesia
Last spring frost
May 29
First fall frost
Sep 15
Growing season
107 days
Hardiness zone
5a
More local growing data for Silesia: nearby ZIP 59026 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Bearcreek
Belfry
Boyd
Bridger
Edgar
Fox
Fromberg
Joliet
Luther
Montaqua
Red Lodge
Roberts
Rockvale
Roscoe
Climate data from the nearest NOAA station, Joliet, Mt (11 mi from Silesia). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.