Roberts, MT Weather & Growing Conditions
Tonight
52°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy. Low around 52, with temperatures rising to around 54 overnight. Northwest wind around 9 mph. Chance of precipitation is 90%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Showers And Thunderstorms | 9 mph NW | 88% |
| Saturday | 58°F | Showers And Thunderstorms | 8 to 15 mph NNW | 96% |
| Saturday Night | 48°F | Showers And Thunderstorms | 9 to 16 mph NW | 89% |
| Sunday | 61°F | Rain Showers Likely | 5 to 8 mph NW | 63% |
| Sunday Night | 46°F | Mostly Cloudy | 2 to 6 mph WSW | 13% |
| Monday | 70°F | Sunny | 3 to 9 mph SSE | 2% |
| Monday Night | 49°F | Mostly Clear | 8 mph SSW | 1% |
| Tuesday | 75°F | Mostly Sunny | 6 mph S | 2% |
| Tuesday Night | 51°F | Partly Cloudy | 5 mph SSW | 4% |
| Wednesday | 76°F | Sunny | 6 mph S | 7% |
| Wednesday Night | 52°F | Mostly Clear | 5 to 8 mph SSE | 1% |
| Thursday | 77°F | Sunny | 7 to 10 mph S | 1% |
| Thursday Night | 52°F | Mostly Clear | 10 mph SSE | 2% |
| Friday | 78°F | Mostly Sunny | 9 mph S | 2% |
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 Sep 19, 2026.