Toston, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Toston, a community in Broadwater County, Montana.
Today
77°F
Patchy Smoke
Patchy smoke. Sunny, with a high near 77. Northwest wind 1 to 6 mph.
7-day forecast for Toston
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 77°F | Patchy Smoke | 1 to 6 mph NW | 0% |
| Tonight | 46°F | Patchy Smoke then Mostly Clear | 2 to 7 mph E | 0% |
| Wednesday | 83°F | Sunny | 2 to 7 mph SW | 0% |
| Wednesday Night | 49°F | Mostly Clear | 2 to 9 mph NE | 0% |
| Thursday | 91°F | Sunny | 2 to 8 mph SW | 0% |
| Thursday Night | 54°F | Mostly Clear | 1 to 12 mph ENE | 0% |
| Friday | 94°F | Sunny | 2 to 14 mph SSW | 0% |
| Friday Night | 56°F | Mostly Clear | 2 to 16 mph NNW | 0% |
| Saturday | 92°F | Sunny | 1 to 9 mph SW | 0% |
| Saturday Night | 56°F | Mostly Clear | 3 to 14 mph N | 2% |
| Sunday | 90°F | Sunny | 1 to 9 mph N | 1% |
| Sunday Night | 55°F | Partly Cloudy | 5 to 14 mph N | 2% |
| Monday | 89°F | Sunny | 2 to 8 mph N | 1% |
| Monday Night | 55°F | Partly Cloudy | 5 to 14 mph NNE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Toston (46.161, -111.448). Updated through the day.
Growing snapshot for Toston
Last spring frost
May 19
First fall frost
Sep 19
Growing season
122 days
Hardiness zone
5a
More local growing data for Toston: nearby ZIP 59643 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Townsend 3Se, Mt (12.9 mi from Toston). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.