Avon, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Avon, a community in Powell County, Montana.
Today
59°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely before 3pm, then a slight chance of rain between 3pm and 4pm. Some of the storms could produce heavy rain. Cloudy, with a high near 59. Northeast wind 5 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast for Avon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 59°F | Showers And Thunderstorms Likely | 5 to 8 mph NE | 61% |
| Tonight | 38°F | Mostly Cloudy then Patchy Fog | 1 to 6 mph E | 6% |
| Sunday | 68°F | Areas Of Fog then Mostly Sunny | 0 to 5 mph SW | 0% |
| Sunday Night | 40°F | Mostly Clear | 3 mph SSW | 0% |
| Monday | 72°F | Sunny | 1 to 6 mph SW | 0% |
| Monday Night | 43°F | Mostly Clear | 0 to 5 mph SW | 0% |
| Tuesday | 72°F | Sunny | 1 to 5 mph SW | 1% |
| Tuesday Night | 43°F | Partly Cloudy | 3 mph S | 2% |
| Wednesday | 73°F | Sunny | 1 to 6 mph SSW | 2% |
| Wednesday Night | 44°F | Mostly Clear | 5 mph S | 4% |
| Thursday | 74°F | Sunny | 1 to 5 mph SSW | 2% |
| Thursday Night | 44°F | Partly Cloudy | 5 mph SSE | 5% |
| Friday | 72°F | Mostly Sunny | 2 to 7 mph S | 8% |
| Friday Night | 41°F | Slight Chance Light Rain then Mostly Cloudy | 7 mph WNW | 17% |
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 Sep 19, 2026.