St. Michaels, AZ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. Michaels, a community in Mckinley County, Arizona.
Overnight
61°F
Mostly Clear
Mostly clear. Low around 61, with temperatures rising to around 64 overnight. West wind around 8 mph.
7-day forecast for St. Michaels
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 61°F | Mostly Clear | 8 mph W | 0% |
| Tuesday | 94°F | Sunny | 8 to 13 mph NW | 1% |
| Tuesday Night | 60°F | Mostly Clear | 3 to 12 mph W | 1% |
| Wednesday | 94°F | Sunny | 2 to 8 mph NW | 3% |
| Wednesday Night | 60°F | Partly Cloudy | 0 to 7 mph W | 2% |
| Thursday | 92°F | Slight Chance Showers And Thunderstorms | 0 to 6 mph NW | 17% |
| Thursday Night | 59°F | Mostly Clear | 0 to 7 mph W | 0% |
| Friday | 93°F | Sunny | 0 to 6 mph NW | 5% |
| Friday Night | 59°F | Mostly Clear | 0 to 7 mph S | 0% |
| Saturday | 93°F | Slight Chance Showers And Thunderstorms | 0 to 6 mph SW | 19% |
| Saturday Night | 60°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 10 mph SW | 15% |
| Sunday | 91°F | Chance Showers And Thunderstorms | 0 to 6 mph W | 26% |
| Sunday Night | 58°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 1 to 8 mph W | 16% |
| Monday | 89°F | Chance Showers And Thunderstorms | 0 to 7 mph W | 39% |
Forecast source: National Weather Service (api.weather.gov) for St. Michaels (35.661, -109.096). Updated through the day.
Growing snapshot for St. Michaels
Last spring frost
May 29
First fall frost
Sep 28
Growing season
121 days
Hardiness zone
6b
More local growing data for St. Michaels: nearby ZIP 86515 weather · frost dates · planting calendar · Arizona frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Window Rock Ap, Az (5.5 mi from St. Michaels). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.