Flagstaff 7-day weather forecast

Written by:
September 8, 2025
ESOlex // Shutterstock

Flagstaff 7-day weather forecast

Stacker created the forecast for Flagstaff, Arizona using data from OpenWeather. This week's high is 81 °F on Monday, while the low is 47 °F on Saturday. There are expected to be 7 sunny days and precipitation on 0 days this week.

There are currently no weather alerts.

Monday, September 8

- High of 81 °F, low of 50 °F (25% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (10 UV index)
- Moderate breeze (14 mph wind)
- Sunrise at 6:04 AM, sunset at 6:44 PM
1 / 6
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Tuesday, September 9

- High of 76 °F, low of 55 °F (37% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (10 UV index)
- Fresh breeze (20 mph wind)
- Sunrise at 6:05 AM, sunset at 6:42 PM
2 / 6
LeManna // Shutterstock

Wednesday, September 10

- High of 74 °F, low of 55 °F (32% humidity)
- Fair with a 0% chance of rain
- Very high risk of harm from sun exposure (9 UV index)
- Fresh breeze (24 mph wind)
- Sunrise at 6:06 AM, sunset at 6:41 PM
3 / 6
Rachasie // Shutterstock

Thursday, September 11

- High of 72 °F, low of 51 °F (33% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (10 UV index)
- Fresh breeze (21 mph wind)
- Sunrise at 6:06 AM, sunset at 6:39 PM
4 / 6
Matusciac Alexandru // Shutterstock

Friday, September 12

- High of 69 °F, low of 48 °F (28% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (10 UV index)
- Fresh breeze (21 mph wind)
- Sunrise at 6:07 AM, sunset at 6:38 PM
5 / 6
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Saturday, September 13

- High of 72 °F, low of 47 °F (17% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (10 UV index)
- Gentle breeze (12 mph wind)
- Sunrise at 6:08 AM, sunset at 6:36 PM
6 / 6
Pablesku // Shutterstock

Sunday, September 14

- High of 73 °F, low of 49 °F (14% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (10 UV index)
- Moderate breeze (14 mph wind)
- Sunrise at 6:08 AM, sunset at 6:35 PM
- Last quarter moon

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