Lavina, MT Weather & Growing Conditions
Tonight
28°F
Patchy Fog
Patchy fog between 11pm and 5am. Mostly clear, with a low around 28. West southwest wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 28°F | Patchy Fog | 6 mph WSW | 0% |
| Wednesday | 52°F | Sunny | 1 to 8 mph SSW | 0% |
| Wednesday Night | 28°F | Patchy Fog | 1 to 8 mph NNW | 0% |
| Thursday | 56°F | Patchy Fog then Mostly Sunny | 5 to 9 mph WSW | 4% |
| Thursday Night | 31°F | Partly Cloudy | 5 to 8 mph W | 4% |
| Friday | 56°F | Sunny | 7 to 10 mph WSW | 3% |
| Friday Night | 35°F | Partly Cloudy | 7 to 12 mph WSW | 3% |
| Saturday | 60°F | Sunny | 6 to 12 mph WSW | 0% |
| Saturday Night | 34°F | Partly Cloudy | 5 to 9 mph SW | 0% |
| Sunday | 63°F | Mostly Sunny | 7 to 12 mph WSW | 0% |
| Sunday Night | 36°F | Mostly Cloudy | 6 to 9 mph W | 0% |
| Monday | 56°F | Mostly Sunny | 6 mph SW | 1% |
| Monday Night | 34°F | Mostly Cloudy | 2 to 7 mph SSW | 1% |
| Tuesday | 60°F | Mostly Sunny | 9 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Lavina, MT
Last spring frost
May 22
First fall frost
Sep 15
Growing season
114 days
Hardiness zone
4b
Explore more for Lavina, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Roundup 15 Sw, Mt (10.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.