Big Timber, MT Weather & Growing Conditions
Today
75°F
Sunny then Patchy Smoke
Patchy smoke after 3pm. Sunny. High near 75, with temperatures falling to around 73 in the afternoon. East wind 1 to 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 75°F | Sunny then Patchy Smoke | 1 to 7 mph E | 0% |
| Tonight | 49°F | Patchy Smoke then Mostly Clear | 1 to 7 mph N | 2% |
| Wednesday | 85°F | Sunny | 2 to 13 mph WSW | 0% |
| Wednesday Night | 53°F | Mostly Clear | 2 to 10 mph WNW | 0% |
| Thursday | 93°F | Sunny | 2 to 13 mph W | 0% |
| Thursday Night | 57°F | Mostly Clear | 2 to 13 mph NW | 0% |
| Friday | 98°F | Sunny | 2 to 15 mph WSW | 0% |
| Friday Night | 60°F | Mostly Clear | 8 to 17 mph WNW | 0% |
| Saturday | 95°F | Sunny | 6 to 16 mph W | 0% |
| Saturday Night | 60°F | Partly Cloudy | 5 to 14 mph NNW | 3% |
| Sunday | 92°F | Sunny | 3 to 10 mph NNW | 4% |
| Sunday Night | 60°F | Partly Cloudy | 7 to 14 mph NNE | 13% |
| Monday | 89°F | Sunny | 3 to 10 mph NE | 6% |
| Monday Night | 58°F | Partly Cloudy | 6 to 14 mph NNE | 11% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Big Timber, MT
Last spring frost
May 14
First fall frost
Sep 26
Growing season
133 days
Hardiness zone
5a
Explore more for Big Timber, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Big Timber, Mt (6.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.