Flagstaff, AZ Weather & Growing Conditions
Today
90°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms between 11am and 5pm. Sunny. High near 90, with temperatures falling to around 86 in the afternoon. West wind 8 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 90°F | Slight Chance Showers And Thunderstorms | 8 to 16 mph W | 19% |
| Tonight | 60°F | Mostly Clear | 5 to 9 mph W | 8% |
| Wednesday | 88°F | Chance Showers And Thunderstorms | 8 mph W | 48% |
| Wednesday Night | 60°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 to 8 mph W | 12% |
| Thursday | 88°F | Showers And Thunderstorms Likely | 7 mph NW | 62% |
| Thursday Night | 59°F | Partly Cloudy | 3 to 7 mph W | 5% |
| Friday | 90°F | Slight Chance Showers And Thunderstorms | 2 to 7 mph N | 19% |
| Friday Night | 59°F | Mostly Clear | 7 mph W | 2% |
| Saturday | 90°F | Slight Chance Showers And Thunderstorms | 3 to 8 mph W | 24% |
| Saturday Night | 59°F | Partly Cloudy | 3 to 9 mph W | 4% |
| Sunday | 88°F | Showers And Thunderstorms Likely | 3 to 10 mph W | 55% |
| Sunday Night | 58°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 to 10 mph W | 19% |
| Monday | 84°F | Showers And Thunderstorms Likely | 5 to 12 mph W | 66% |
| Monday Night | 55°F | Chance Showers And Thunderstorms | 5 to 12 mph W | 29% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Flagstaff, AZ
Last spring frost
Jun 4
First fall frost
Sep 28
Growing season
115 days
Explore more for Flagstaff, AZ: full frost dates · planting calendar · Arizona frost dates
Climate data from the nearest NOAA station, Flagstaff Pulliam Ap, Az (3.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.