Flagstaff, AZ 14-Day Forecast
Arizona, United States 🇺🇸
The 14-day forecast for Flagstaff is temporarily unavailable - please check back shortly. Meanwhile, the monthly averages below give a reliable picture of what to expect.
Flagstaff 14-day outlook: the story
The best time to visit Flagstaff is generally April to June and September to October, when temperatures sit either side of the peak heat rather than in it. Daytime temperatures in that window sit near 70°F (21°C), with rain on about 5 days a month. For the same question asked the other way round, see where else is warm in April.
For typical conditions month by month, see the Flagstaff climate & average temperatures guide.
Average temperatures in Flagstaff by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 40° | 23° | 8 | 2.0 in | 8.4 h/day | 10.0 h | 25% | 66% |
| February | 44° | 25° | 6 | 1.9 in | 9.7 h/day | 10.9 h | 20% | 58% |
| March | 49° | 29° | 8 | 2.1 in | 10.5 h/day | 11.9 h | 25% | 57% |
| April | 61° | 36° | 4 | 0.6 in | 12.4 h/day | 13.0 h | 13% | 39% |
| May | 68° | 43° | 6 | 1.2 in | 12.9 h/day | 14.0 h | 20% | 36% |
| June | 81° | 56° | 3 | 0.6 in | 13.7 h/day | 14.5 h | 11% | 27% |
| July | 83° | 60° | 12 | 2.6 in | 12.5 h/day | 14.3 h | 38% | 43% |
| August | 80° | 58° | 11 | 2.4 in | 12.2 h/day | 13.5 h | 36% | 50% |
| September | 75° | 53° | 6 | 1.3 in | 11.6 h/day | 12.3 h | 21% | 45% |
| October | 64° | 43° | 6 | 1.2 in | 10.5 h/day | 11.2 h | 18% | 47% |
| November | 52° | 33° | 3 | 1.1 in | 9.4 h/day | 10.3 h | 11% | 49% |
| December | 43° | 26° | 5 | 1.4 in | 8.3 h/day | 9.8 h | 17% | 56% |
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