Roberts, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Roberts, a community in Carbon County, Montana.
Overnight
52°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy. Low around 52, with temperatures rising to around 55 overnight. Northwest wind around 8 mph. Chance of precipitation is 90%.
7-day forecast for Roberts
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 52°F | Showers And Thunderstorms | 8 mph NW | 87% |
| Saturday | 57°F | Patchy Fog | 9 to 15 mph NW | 95% |
| Saturday Night | 45°F | Showers And Thunderstorms | 9 to 15 mph NW | 91% |
| Sunday | 60°F | Rain Showers Likely | 8 mph NW | 59% |
| Sunday Night | 45°F | Slight Chance Rain Showers then Mostly Cloudy | 5 mph SW | 15% |
| Monday | 68°F | Sunny | 3 to 10 mph S | 2% |
| Monday Night | 48°F | Mostly Clear | 8 mph SSW | 0% |
| Tuesday | 74°F | Sunny | 3 to 7 mph S | 1% |
| Tuesday Night | 50°F | Partly Cloudy | 5 mph SSW | 3% |
| Wednesday | 76°F | Mostly Sunny | 6 mph S | 6% |
| Wednesday Night | 51°F | Mostly Clear | 5 to 8 mph S | 4% |
| Thursday | 77°F | Sunny | 10 mph SSE | 1% |
| Thursday Night | 52°F | Mostly Clear | 12 mph S | 1% |
| Friday | 77°F | Mostly Sunny | 10 mph S | 3% |
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 Sep 19, 2026.