Big Timber, MT Weather & Growing Conditions
Overnight
52°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy. Low around 52, with temperatures rising to around 55 overnight. North wind 8 to 12 mph. Chance of precipitation is 100%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 52°F | Showers And Thunderstorms | 8 to 12 mph N | 100% |
| Saturday | 57°F | Patchy Fog | 9 to 13 mph NNW | 100% |
| Saturday Night | 46°F | Rain Showers | 3 to 8 mph NNW | 89% |
| Sunday | 64°F | Rain Showers Likely | 3 mph SW | 60% |
| Sunday Night | 45°F | Mostly Cloudy | 1 to 5 mph SSE | 6% |
| Monday | 72°F | Sunny | 1 to 6 mph SSW | 1% |
| Monday Night | 47°F | Mostly Clear | 2 to 7 mph SW | 0% |
| Tuesday | 76°F | Sunny | 3 mph WSW | 0% |
| Tuesday Night | 49°F | Partly Cloudy | 3 mph SW | 2% |
| Wednesday | 77°F | Sunny | 6 mph SW | 6% |
| Wednesday Night | 50°F | Mostly Clear | 5 mph SW | 4% |
| Thursday | 78°F | Sunny | 7 mph SW | 1% |
| Thursday Night | 50°F | Mostly Clear | 2 to 7 mph SW | 1% |
| Friday | 78°F | Mostly Sunny | 2 to 8 mph SW | 4% |
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 Sep 19, 2026.