Roberts, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Roberts, a community in Carbon County, Montana.
Tonight
31°F
Partly Cloudy
Partly cloudy, with a low around 31. Southwest wind 3 to 7 mph.
7-day forecast for Roberts
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 31°F | Partly Cloudy | 3 to 7 mph SW | 0% |
| Wednesday | 54°F | Sunny | 5 mph WNW | 0% |
| Wednesday Night | 31°F | Partly Cloudy | 2 to 9 mph WSW | 0% |
| Thursday | 55°F | Sunny | 1 to 9 mph S | 3% |
| Thursday Night | 33°F | Partly Cloudy | 1 to 6 mph WSW | 7% |
| Friday | 55°F | Sunny | 7 mph S | 5% |
| Friday Night | 35°F | Partly Cloudy | 7 to 10 mph SSW | 5% |
| Saturday | 58°F | Sunny | 9 mph S | 0% |
| Saturday Night | 38°F | Partly Cloudy | 8 to 17 mph S | 0% |
| Sunday | 63°F | Mostly Sunny | 9 to 20 mph S | 0% |
| Sunday Night | 39°F | Partly Cloudy | 3 to 9 mph SSW | 0% |
| Monday | 59°F | Mostly Sunny | 5 mph S | 1% |
| Monday Night | 38°F | Partly Cloudy | 6 mph SSW | 1% |
| Tuesday | 61°F | Mostly Sunny | 6 mph SW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Roberts (45.344, -109.182). Updated through the day.
Growing snapshot for Roberts
Last spring frost
May 29
First fall frost
Sep 15
Growing season
107 days
Hardiness zone
5a
More local growing data for Roberts: nearby ZIP 59070 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Bearcreek
Belfry
Boyd
Bridger
Edgar
Fox
Fromberg
Joliet
Luther
Montaqua
Red Lodge
Rockvale
Roscoe
Silesia
Climate data from the nearest NOAA station, Joliet, Mt (11.2 mi from Roberts). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.