Avon, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Avon, a community in Powell County, Montana.
This Afternoon
48°F
Mostly Sunny
Mostly sunny. High near 48, with temperatures falling to around 42 in the afternoon. West northwest wind around 2 mph.
7-day forecast for Avon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 48°F | Mostly Sunny | 2 mph WNW | 0% |
| Tonight | 24°F | Mostly Cloudy | 1 mph E | 0% |
| Wednesday | 47°F | Mostly Sunny | 2 mph W | 0% |
| Wednesday Night | 24°F | Mostly Clear | 1 mph SW | 0% |
| Thursday | 46°F | Mostly Sunny | 1 to 7 mph WSW | 4% |
| Thursday Night | 24°F | Partly Cloudy | 7 mph WSW | 4% |
| Friday | 47°F | Mostly Sunny | 5 to 13 mph WSW | 12% |
| Friday Night | 27°F | Mostly Cloudy | 8 to 18 mph WSW | 12% |
| Saturday | 50°F | Mostly Sunny | 2 to 8 mph SW | 1% |
| Saturday Night | 30°F | Partly Cloudy | 5 mph SSW | 1% |
| Sunday | 56°F | Mostly Sunny | 5 to 9 mph SW | 4% |
| Sunday Night | 30°F | Partly Cloudy | 2 to 8 mph WSW | 7% |
| Monday | 52°F | Partly Sunny | 3 mph WSW | 4% |
| Monday Night | 31°F | Mostly Cloudy | 3 mph WSW | 3% |
Forecast source: National Weather Service (api.weather.gov) for Avon (46.629, -112.576). Updated through the day.
Growing snapshot for Avon
Last spring frost
Jun 9
First fall frost
Sep 8
Growing season
91 days
Hardiness zone
4b
More local growing data for Avon: nearby ZIP 59713 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Elliston, Mt (11 mi from Avon). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.