Twin Bridges, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Twin Bridges, a town in Madison County, Montana.
Overnight
41°F
Patchy Smoke
Patchy smoke. Mostly clear, with a low around 41. North northeast wind around 8 mph.
7-day forecast for Twin Bridges
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 41°F | Patchy Smoke | 8 mph NNE | 0% |
| Tuesday | 78°F | Areas Of Smoke | 3 to 7 mph NNE | 0% |
| Tuesday Night | 45°F | Areas Of Smoke | 2 to 9 mph NE | 1% |
| Wednesday | 85°F | Patchy Smoke | 2 to 7 mph SSW | 0% |
| Wednesday Night | 47°F | Patchy Smoke then Mostly Clear | 2 to 8 mph NW | 0% |
| Thursday | 93°F | Sunny | 2 to 9 mph SW | 0% |
| Thursday Night | 52°F | Clear | 2 to 10 mph N | 0% |
| Friday | 95°F | Sunny | 3 to 16 mph SW | 0% |
| Friday Night | 53°F | Mostly Clear | 5 to 15 mph NNW | 0% |
| Saturday | 93°F | Sunny | 3 to 10 mph SW | 0% |
| Saturday Night | 53°F | Mostly Clear | 5 to 12 mph N | 1% |
| Sunday | 92°F | Sunny | 2 to 7 mph SW | 1% |
| Sunday Night | 52°F | Mostly Clear | 7 to 12 mph NNW | 4% |
| Monday | 90°F | Sunny | 2 to 6 mph N | 1% |
Forecast source: National Weather Service (api.weather.gov) for Twin Bridges (45.543, -112.334). Updated through the day.
Growing snapshot for Twin Bridges
Last spring frost
Jun 8
First fall frost
Sep 2
Growing season
82 days
Hardiness zone
5a
More local growing data for Twin Bridges: nearby ZIP 59754 weather · frost dates · planting calendar · Montana frost dates
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Virginia City
Climate data from the nearest NOAA station, Twin Bridges, Mt (2.4 mi from Twin Bridges). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.