Tomorrow Hourly Weather Forecast for Flagstaff, AZ

Hourly Weather | Tomorrow › Thursday, August 13, 2026

Active Weather Warnings

Flood Watch

Flagstaff, Arizona

12 AM

59°

Feels Like 57°

Humidity: 84%

UV Index: 0

Wind: 6 mph

1 AM

57°

Feels Like 57°

Humidity: 86%

UV Index: 0

Wind: 6 mph

2 AM

57°

Feels Like 54°

Humidity: 87%

UV Index: 0

Wind: 6 mph

3 AM

57°

Feels Like 55°

Humidity: 89%

UV Index: 0

Wind: 6 mph

4 AM

55°

Feels Like 55°

Humidity: 89%

UV Index: 0

Wind: 6 mph

5 AM

54°

Feels Like 54°

Humidity: 93%

UV Index: 0

Wind: 5 mph

6 AM

55°

Feels Like 55°

Humidity: 89%

UV Index: 0

Wind: 6 mph

7 AM

57°

Feels Like 55°

Humidity: 87%

UV Index: 1

Wind: 7 mph

8 AM

61°

Feels Like 61°

Humidity: 81%

UV Index: 1

Wind: 8 mph

9 AM

64°

Feels Like 64°

Humidity: 75%

UV Index: 2

Wind: 9 mph

10 AM

66°

Feels Like 66°

Humidity: 67%

UV Index: 3

Wind: 10 mph

11 AM

70°

Feels Like 72°

Humidity: 60%

UV Index: 4

Wind: 10 mph

12 PM

70°

Feels Like 72°

Humidity: 58%

UV Index: 4

Wind: 12 mph

1 PM

72°

Feels Like 72°

Humidity: 56%

UV Index: 3

Wind: 12 mph

2 PM

70°

Feels Like 70°

Humidity: 58%

UV Index: 2

Wind: 13 mph

3 PM

70°

Feels Like 68°

Humidity: 58%

UV Index: 2

Wind: 13 mph

4 PM

68°

Feels Like 66°

Humidity: 60%

UV Index: 1

Wind: 12 mph

5 PM

66°

Feels Like 57°

Humidity: 78%

UV Index: 0

Wind: 12 mph

6 PM

64°

Feels Like 61°

Humidity: 81%

UV Index: 0

Wind: 10 mph

7 PM

63°

Feels Like 61°

Humidity: 79%

UV Index: 0

Wind: 8 mph

8 PM

63°

Feels Like 61°

Humidity: 73%

UV Index: 0

Wind: 7 mph

9 PM

61°

Feels Like 55°

Humidity: 78%

UV Index: 0

Wind: 6 mph

10 PM

61°

Feels Like 59°

Humidity: 79%

UV Index: 0

Wind: 6 mph

11 PM

59°

Feels Like 57°

Humidity: 81%

UV Index: 0

Wind: 6 mph

Weather Alerts and Warnings for Flagstaff

Severe Future Possible

Flood Watch

Flood Watch issued August 12 at 1:11AM MST until August 13 at 12:00AM MST by NWS Flagstaff AZ

Aug 12, 1:00 PM → Aug 13, 1:00 AM

WHAT: Elevated potential for Flash Flooding due to excessive
rainfall.

WHERE: Yavapai County, Coconino County, Navajo County, Apache
County and northern Gila County.

WHEN: From Noon MST Wednesday through Midnight MST Wednesday
evening.

IMPACTS: Flash flooding will be possible in creeks, normally dry
washes, swimming holes, and over recently burned areas. Raging
killer currents will be possible in side canyons and narrow slot
canyons. Low-water crossings may be flooded.

ADDITIONAL DETAILS:
- High moisture values and increased instability will lead to
strong thunderstorms today and this evening.
- Additional information is available at weather.gov/flagstaff.

+ Read More

Have a way to receive Flash Flood Warnings and be prepared to take action should warnings be issued. Consider changing your plans if you were going to hike, boat, or paddleboard to a slot canyon or normally dry wash. If you do still decide to recreate, check in at a nearby visitor center or ranger station.

Updated: Aug 12, 6:32 AM Source: NWS Alert

Weather Alerts and Warnings for Flagstaff

Flood Watch

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