Flagstaff, AZ 14-Day Forecast
Arizona, United States 🇺🇸
81°
Cloudy right now
Today: high 84°, low 63°
Updated 1 hour ago
Flagstaff weather for the next 14 days
Thursday, August 27
Overcast High 83° Low 59°Precipitation
57%
· 0.11 in
Max wind
12 mph
Humidity
40%
UV index
9 - Very High
Sunrise / sunset
05:55 AM / 07:00 PM
Friday, August 28
Overcast High 83° Low 62°Precipitation
7%
· 0.0 in
Max wind
14 mph
Humidity
39%
UV index
7 - High
Sunrise / sunset
05:56 AM / 06:59 PM
Saturday, August 29
Patchy rain nearby High 75° Low 57°Precipitation
74%
· 0.33 in
Max wind
13 mph
Humidity
59%
UV index
6 - High
Sunrise / sunset
05:57 AM / 06:58 PM
Sunday, August 30
Light rain shower High 67° Low 53°Precipitation
85%
· 0.98 in
Max wind
13 mph
Humidity
79%
UV index
4 - Moderate
Sunrise / sunset
05:57 AM / 06:56 PM
Monday, August 31
Light rain shower High 68° Low 54°Precipitation
80%
· 0.51 in
Max wind
9 mph
Humidity
72%
UV index
4 - Moderate
Sunrise / sunset
05:58 AM / 06:55 PM
Tuesday, September 1
Patchy rain nearby High 72° Low 54°Precipitation
36%
· 0.01 in
Max wind
13 mph
Humidity
67%
UV index
6 - High
Sunrise / sunset
05:59 AM / 06:54 PM
Wednesday, September 2
Partly Cloudy High 74° Low 56°Precipitation
17%
· 0.0 in
Max wind
12 mph
Humidity
58%
UV index
6 - High
Sunrise / sunset
05:59 AM / 06:52 PM
Thursday, September 3
Overcast High 68° Low 55°Precipitation
19%
· 0.0 in
Max wind
7 mph
Humidity
61%
UV index
4 - Moderate
Sunrise / sunset
06:00 AM / 06:51 PM
Friday, September 4
Overcast High 69° Low 55°Precipitation
49%
· 0.03 in
Max wind
11 mph
Humidity
70%
UV index
5 - Moderate
Sunrise / sunset
06:01 AM / 06:49 PM
Saturday, September 5
Sunny High 73° Low 55°Precipitation
36%
· 0.03 in
Max wind
21 mph
Humidity
70%
UV index
6 - High
Sunrise / sunset
06:02 AM / 06:48 PM
Sunday, September 6
Patchy rain nearby High 67° Low 55°Precipitation
79%
· 0.16 in
Max wind
14 mph
Humidity
81%
UV index
4 - Moderate
Sunrise / sunset
06:02 AM / 06:47 PM
Monday, September 7
Light rain shower High 70° Low 55°Precipitation
83%
· 0.55 in
Max wind
11 mph
Humidity
75%
UV index
5 - Moderate
Sunrise / sunset
06:03 AM / 06:45 PM
Tuesday, September 8
Sunny High 78° Low 55°Precipitation
1%
· 0.0 in
Max wind
6 mph
Humidity
41%
UV index
7 - High
Sunrise / sunset
06:04 AM / 06:44 PM
Flagstaff 14-day outlook: the story
The warmest day of Flagstaff's 14-day outlook is Wednesday, August 26 with a high near 84°F (29°C); the coolest night comes Sunday, August 30, dipping to 53°F (12°C). The trend points cooler: week two runs about 5°F below week one. Highs over the next two weeks average 76°F (25°C), about 4°F (2°C) below the typical August high of 80°F (27°C).
Precipitation is most likely on Thursday 27, Saturday 29, Sunday 30, Monday 31 and beyond; the wettest day looks like Sunday, August 30 with about 0.98 in (24.8 mm) expected. For the weekend, expect Saturday 75°F (24°C) and patchy rain nearby / Sunday 67°F (19°C) and light rain shower.
For typical conditions month by month, see the Flagstaff climate & average temperatures guide.
Flagstaff forecast questions
Will it rain in Flagstaff this week?
The forecast currently shows meaningful precipitation chances on 6 of the next 14 days, peaking around Sunday, August 30.
What will be the warmest day in Flagstaff over the next 14 days?
Wednesday, August 26, with a forecast high near 84°F (29°C).
How accurate is a 14-day forecast for Flagstaff?
Days 1-3 are highly reliable, days 4-7 capture the overall pattern well, and days 8-14 indicate trends rather than exact figures - check back as the date approaches; this page refreshes throughout the day.
Average temperatures in Flagstaff by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 40° | 23° | 8 | 2.0 in | 8.4 h/day | 66% |
| February | 44° | 25° | 6 | 1.9 in | 9.7 h/day | 58% |
| March | 49° | 29° | 8 | 2.1 in | 10.5 h/day | 57% |
| April | 61° | 36° | 4 | 0.6 in | 12.4 h/day | 39% |
| May | 68° | 43° | 6 | 1.2 in | 12.9 h/day | 36% |
| June | 81° | 56° | 3 | 0.6 in | 13.7 h/day | 27% |
| July | 83° | 60° | 12 | 2.6 in | 12.5 h/day | 43% |
| August | 80° | 58° | 11 | 2.4 in | 12.2 h/day | 50% |
| September | 75° | 53° | 6 | 1.3 in | 11.6 h/day | 45% |
| October | 64° | 43° | 6 | 1.2 in | 10.5 h/day | 47% |
| November | 52° | 33° | 3 | 1.1 in | 9.4 h/day | 49% |
| December | 43° | 26° | 5 | 1.4 in | 8.3 h/day | 56% |
14-day forecasts nearby