Roberts, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Roberts, a community in Carbon County, Montana.
This Afternoon
54°F
Sunny
Sunny. High near 54, with temperatures falling to around 44 in the afternoon. North northeast wind around 5 mph.
7-day forecast for Roberts
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 54°F | Sunny | 5 mph NNE | 0% |
| Tonight | 32°F | Mostly Clear | 2 to 9 mph SSW | 0% |
| Thursday | 54°F | Sunny | 2 to 9 mph S | 1% |
| Thursday Night | 34°F | Mostly Cloudy | 5 to 8 mph WSW | 9% |
| Friday | 52°F | Sunny | 5 to 8 mph SSW | 0% |
| Friday Night | 35°F | Partly Cloudy | 7 to 12 mph SSW | 0% |
| Saturday | 57°F | Sunny | 6 to 9 mph S | 0% |
| Saturday Night | 39°F | Mostly Clear | 7 to 17 mph S | 0% |
| Sunday | 61°F | Mostly Sunny | 8 to 20 mph S | 0% |
| Sunday Night | 38°F | Partly Cloudy | 3 to 9 mph SW | 1% |
| Monday | 57°F | Mostly Sunny | 5 mph ESE | 1% |
| Monday Night | 37°F | Partly Cloudy | 5 mph SSW | 0% |
| Tuesday | 58°F | Mostly Sunny | 5 mph S | 0% |
| Tuesday Night | 39°F | Partly Cloudy | 5 to 8 mph SSW | 1% |
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
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Bridger
Edgar
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Fromberg
Joliet
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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.