Boyd, MT Weather & Growing Conditions
Today
76°F
Sunny then Patchy Smoke
Patchy smoke after 3pm. Sunny. High near 76, with temperatures falling to around 74 in the afternoon. North northeast wind 2 to 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 76°F | Sunny then Patchy Smoke | 2 to 9 mph NNE | 0% |
| Tonight | 48°F | Patchy Smoke | 3 to 9 mph N | 2% |
| Wednesday | 86°F | Sunny | 5 mph S | 0% |
| Wednesday Night | 52°F | Mostly Clear | 6 mph NW | 0% |
| Thursday | 95°F | Sunny | 5 mph WSW | 0% |
| Thursday Night | 57°F | Mostly Clear | 5 to 9 mph NNW | 0% |
| Friday | 99°F | Sunny | 5 mph SW | 0% |
| Friday Night | 60°F | Mostly Clear | 9 mph NW | 0% |
| Saturday | 96°F | Sunny | 3 to 9 mph WNW | 0% |
| Saturday Night | 60°F | Partly Cloudy | 6 to 10 mph NNW | 0% |
| Sunday | 94°F | Sunny | 7 mph N | 2% |
| Sunday Night | 60°F | Partly Cloudy | 9 mph N | 8% |
| Monday | 91°F | Sunny | 6 to 9 mph N | 3% |
| Monday Night | 59°F | Partly Cloudy | 7 to 12 mph N | 13% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Boyd, MT
Last spring frost
May 29
First fall frost
Sep 15
Growing season
107 days
Hardiness zone
5a
Explore more for Boyd, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Joliet, Mt (3.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.