Roberts, MT Weather & Growing Conditions
This Afternoon
50°F
Sunny
Sunny. High near 50, with temperatures falling to around 44 in the afternoon. South southeast wind around 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 50°F | Sunny | 10 mph SSE | 0% |
| Tonight | 31°F | Mostly Clear | 6 to 9 mph SSW | 0% |
| Wednesday | 54°F | Mostly Sunny | 1 to 6 mph WNW | 0% |
| Wednesday Night | 31°F | Partly Cloudy | 1 to 10 mph SW | 0% |
| Thursday | 56°F | Sunny | 1 to 10 mph SSW | 3% |
| Thursday Night | 33°F | Partly Cloudy | 1 to 6 mph WSW | 6% |
| Friday | 56°F | Sunny | 5 to 8 mph S | 5% |
| Friday Night | 35°F | Partly Cloudy | 10 mph SSW | 5% |
| Saturday | 59°F | Sunny | 10 mph S | 0% |
| Saturday Night | 38°F | Partly Cloudy | 8 to 18 mph S | 0% |
| Sunday | 63°F | Mostly Sunny | 10 to 21 mph S | 0% |
| Sunday Night | 38°F | Partly Cloudy | 5 to 10 mph SW | 0% |
| Monday | 59°F | Mostly Sunny | 5 mph SSE | 1% |
| Monday Night | 38°F | Partly Cloudy | 6 mph SSW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Roberts, MT
Last spring frost
May 29
First fall frost
Sep 15
Growing season
107 days
Hardiness zone
5a
Explore more for Roberts, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Joliet, Mt (11.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.