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Flagstaff, AZ Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Flagstaff, a city in Coconino County, Arizona.

Overnight
59°F
Clear
Clear, with a low around 59. West wind around 9 mph.

7-day forecast for Flagstaff

WhenTempForecastWindPrecip
Overnight 59°F Clear 9 mph W 0%
Tuesday 90°F Slight Chance Showers And Thunderstorms 8 to 15 mph W 19%
Tuesday Night 59°F Mostly Clear 5 to 9 mph W 9%
Wednesday 88°F Chance Showers And Thunderstorms 8 mph W 49%
Wednesday Night 59°F Slight Chance Showers And Thunderstorms then Partly Cloudy 5 to 8 mph W 12%
Thursday 88°F Showers And Thunderstorms Likely 3 to 8 mph NW 60%
Thursday Night 58°F Partly Cloudy 2 to 8 mph W 5%
Friday 90°F Slight Chance Showers And Thunderstorms 1 to 7 mph N 17%
Friday Night 58°F Mostly Clear 5 to 8 mph W 2%
Saturday 90°F Slight Chance Showers And Thunderstorms 3 to 8 mph W 21%
Saturday Night 58°F Partly Cloudy 3 to 9 mph W 4%
Sunday 88°F Chance Showers And Thunderstorms 3 to 10 mph W 53%
Sunday Night 57°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 65%

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

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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 Aug 4, 2026.