Twin Bridges, MT Weather & Growing Conditions
This Afternoon
59°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely before 4pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 59. North wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 59°F | Showers And Thunderstorms Likely | 6 to 9 mph N | 73% |
| Tonight | 41°F | Slight Chance Light Rain then Patchy Fog | 1 to 9 mph NNE | 17% |
| Sunday | 68°F | Mostly Sunny | 3 mph SW | 2% |
| Sunday Night | 41°F | Mostly Clear | 3 mph E | 0% |
| Monday | 75°F | Sunny | 3 mph SSW | 0% |
| Monday Night | 43°F | Mostly Clear | 5 mph SE | 0% |
| Tuesday | 77°F | Sunny | 3 mph SSW | 0% |
| Tuesday Night | 46°F | Partly Cloudy | 5 mph SSE | 9% |
| Wednesday | 77°F | Sunny | 6 mph SSW | 1% |
| Wednesday Night | 45°F | Partly Cloudy | 7 mph S | 5% |
| Thursday | 79°F | Sunny | 6 mph SSW | 1% |
| Thursday Night | 46°F | Partly Cloudy | 8 mph SSE | 2% |
| Friday | 78°F | Mostly Sunny | 5 to 8 mph SSW | 4% |
| Friday Night | 45°F | Partly Cloudy | 9 to 13 mph SSE | 7% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Twin Bridges, MT
Last spring frost
Jun 8
First fall frost
Sep 2
Growing season
82 days
Hardiness zone
5a
Explore more for Twin Bridges, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Twin Bridges, Mt (2.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.