Roberts, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Roberts, a community in Carbon County, Montana.
Today
74°F
Patchy Smoke
Patchy smoke. Sunny, with a high near 74. North northeast wind 3 to 9 mph.
7-day forecast for Roberts
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 74°F | Patchy Smoke | 3 to 9 mph NNE | 5% |
| Tonight | 49°F | Patchy Smoke | 3 to 9 mph ESE | 8% |
| Wednesday | 84°F | Sunny | 2 to 6 mph ESE | 0% |
| Wednesday Night | 54°F | Mostly Clear | 6 mph W | 0% |
| Thursday | 91°F | Sunny | 5 mph SSE | 0% |
| Thursday Night | 58°F | Mostly Clear | 5 to 8 mph W | 0% |
| Friday | 97°F | Sunny | 5 mph SE | 0% |
| Friday Night | 61°F | Partly Cloudy | 9 mph WNW | 0% |
| Saturday | 94°F | Sunny | 5 to 8 mph NNE | 0% |
| Saturday Night | 62°F | Partly Cloudy | 5 to 9 mph NNW | 1% |
| Sunday | 92°F | Sunny | 8 mph N | 3% |
| Sunday Night | 61°F | Partly Cloudy | 9 mph NNW | 8% |
| Monday | 89°F | Sunny | 9 mph N | 4% |
| Monday Night | 59°F | Partly Cloudy | 6 to 10 mph N | 12% |
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 Aug 4, 2026.