Roscoe, MT Weather & Growing Conditions
Overnight
31°F
Patchy Smoke
Patchy smoke. Mostly clear. Low around 31, with temperatures rising to around 33 overnight. West wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 31°F | Patchy Smoke | 3 mph W | 0% |
| Tuesday | 52°F | Patchy Smoke | 2 to 15 mph NE | 15% |
| Tuesday Night | 41°F | Patchy Smoke | 6 to 13 mph SW | 15% |
| Wednesday | 62°F | Sunny | 6 to 13 mph NW | 0% |
| Wednesday Night | 48°F | Mostly Clear | 6 to 14 mph WSW | 0% |
| Thursday | 70°F | Sunny | 6 to 13 mph W | 0% |
| Thursday Night | 53°F | Mostly Clear | 6 to 13 mph W | 1% |
| Friday | 72°F | Sunny | 7 to 13 mph W | 0% |
| Friday Night | 56°F | Partly Cloudy | 9 to 16 mph WSW | 0% |
| Saturday | 71°F | Sunny | 6 to 14 mph W | 1% |
| Saturday Night | 55°F | Partly Cloudy | 7 to 13 mph WSW | 3% |
| Sunday | 69°F | Sunny | 7 to 14 mph NW | 11% |
| Sunday Night | 53°F | Partly Cloudy | 7 to 13 mph SSW | 14% |
| Monday | 67°F | Mostly Sunny | 8 to 14 mph NW | 11% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Roscoe, MT
Last spring frost
Jun 5
First fall frost
Sep 14
Growing season
99 days
Hardiness zone
5a
Explore more for Roscoe, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Mystic Lake, Mt (4.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.