Flagstaff, AZ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Flagstaff, a city in Coconino County, Arizona.
Tonight
45°F
Mostly Clear
Mostly clear, with a low around 45. West wind 1 to 5 mph.
7-day forecast for Flagstaff
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 45°F | Mostly Clear | 1 to 5 mph W | 0% |
| Sunday | 76°F | Mostly Sunny | 1 to 10 mph SW | 0% |
| Sunday Night | 46°F | Mostly Cloudy | 0 to 5 mph W | 0% |
| Monday | 74°F | Mostly Sunny | 0 to 12 mph SW | 4% |
| Monday Night | 46°F | Mostly Clear | 0 to 6 mph SW | 12% |
| Tuesday | 74°F | Slight Chance Showers And Thunderstorms | 0 to 15 mph S | 17% |
| Tuesday Night | 47°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 to 7 mph SW | 11% |
| Wednesday | 74°F | Slight Chance Showers And Thunderstorms | 0 to 8 mph SE | 16% |
| Wednesday Night | 49°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 3 mph E | 10% |
| Thursday | 71°F | Chance Showers And Thunderstorms | 1 to 10 mph NE | 42% |
| Thursday Night | 48°F | Chance Showers And Thunderstorms | 0 to 3 mph NE | 35% |
| Friday | 71°F | Showers And Thunderstorms Likely | 0 to 7 mph SE | 56% |
| Friday Night | 48°F | Chance Showers And Thunderstorms | 0 to 3 mph W | 37% |
| Saturday | 73°F | Chance Showers And Thunderstorms | 1 to 8 mph SW | 34% |
Forecast source: National Weather Service (api.weather.gov) for Flagstaff (35.185, -111.621). Updated through the day.
Growing snapshot for Flagstaff
Last spring frost
Jun 4
First fall frost
Sep 28
Growing season
115 days
More local growing data for Flagstaff: nearby ZIP 86011 weather · frost dates · planting calendar · Arizona frost dates
Nearby towns & communities
Ash Fork
Bear Flat
Bellemont
Bitter Springs
Blue Ridge
Cameron
Christopher Creek
Doney Park
Forest Lakes
Fort Valley
Fredonia
Grand Canyon Village
Greenehaven
Haigler Creek
Hunter Creek
Kachina Village
Kaibab
Kaibab Estates West
Kaibito
Kohls Ranch
LeChee
Leupp
Mead Ranch
Moccasin
Moenkopi
Mormon Lake
Mountain View Ranches
Mountainaire
Munds Park
Oak Creek Canyon
Climate data from the nearest NOAA station, Flagstaff Pulliam Ap, Az (3.2 mi from Flagstaff). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.