Lavina, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lavina, a town in Golden Valley County, Montana.
This Afternoon
79°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Partly sunny, with a high near 79. Northeast wind around 13 mph. Chance of precipitation is 30%.
7-day forecast for Lavina
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 79°F | Chance Showers And Thunderstorms | 13 mph NE | 25% |
| Tonight | 52°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 6 to 13 mph N | 97% |
| Saturday | 60°F | Showers And Thunderstorms | 10 to 15 mph NNE | 93% |
| Saturday Night | 50°F | Showers And Thunderstorms | 8 to 12 mph N | 91% |
| Sunday | 64°F | Rain Showers Likely | 7 mph NNW | 69% |
| Sunday Night | 47°F | Mostly Cloudy | 1 to 6 mph ESE | 6% |
| Monday | 74°F | Mostly Sunny | 2 to 6 mph SSW | 0% |
| Monday Night | 47°F | Mostly Clear | 1 to 7 mph SSW | 0% |
| Tuesday | 80°F | Mostly Sunny | 5 mph WSW | 0% |
| Tuesday Night | 50°F | Partly Cloudy | 1 to 5 mph SSW | 3% |
| Wednesday | 80°F | Sunny | 6 mph WSW | 3% |
| Wednesday Night | 50°F | Mostly Clear | 3 mph SSW | 3% |
| Thursday | 80°F | Sunny | 6 mph SW | 2% |
| Thursday Night | 50°F | Mostly Clear | 2 to 7 mph SSE | 2% |
Forecast source: National Weather Service (api.weather.gov) for Lavina (46.295, -108.939). Updated through the day.
Growing snapshot for Lavina
Last spring frost
May 22
First fall frost
Sep 15
Growing season
114 days
Hardiness zone
4b
More local growing data for Lavina: nearby ZIP 59046 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Roundup 15 Sw, Mt (10.3 mi from Lavina). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.