Flagstaff weather live forecast

Today's maximum temperature in Flagstaff is expected to be 30°C. Select a day from the live weather forecast for Flagstaff, Arizona, USA for more weather parameters.

Wednesday
19th Aug
30

16

9

11
Thursday
20th Aug
29

15

8

9
Friday
21st Aug
28

16

8

10
Saturday
22nd Aug
29

15

7

9
Sunday
23rd Aug
28

15

6

10

5-day weather forecast updated at 04:00 on Wednesday 19th August 2026 GMT

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The 5-day weather forecast for Arizona (Flagstaff) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Flagstaff weather forecast by day

Below are the detailed weather forecasts for Flagstaff for the next 5 days.

Flagstaff weather for Wednesday 19th August 2026

Expect isolated thunderstorms in Flagstaff, Arizona with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 9 hours of bright sunshine. There are 2-5 mm of rainfall expected with 50% chance of some rain and a light breeze of 12 kph from the west.

30
°C maximum temperature
16
°C minimum temperature
isolated thunderstorms
9
hours of sunshine
11
UV index (Extreme)
50
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
12
kph wind from W

Flagstaff weather for Thursday 20th August 2026

Expect isolated thunderstorms in Flagstaff, Arizona with a maximum temperature of 29°C, low levels of heat & humidity, maximum UV of 9 (Very High) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 58% chance of some rain and a light breeze of 12 kph from the west.

29
°C maximum temperature
15
°C minimum temperature
isolated thunderstorms
8
hours of sunshine
9
UV index (Very High)
58
% chance of some rain
<2
mm of rainfall expected
L
low heat & humidity
12
kph wind from W

Flagstaff weather for Friday 21st August 2026

Expect isolated thunderstorms in Flagstaff, Arizona with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 10 (Very High) and 8 hours of bright sunshine. There are 2-5 mm of rainfall expected with 73% chance of some rain and a light breeze of 10 kph from the west.

28
°C maximum temperature
16
°C minimum temperature
isolated thunderstorms
8
hours of sunshine
10
UV index (Very High)
73
% chance of some rain
<5
mm of rainfall expected
L
low heat & humidity
10
kph wind from W

Flagstaff weather for Saturday 22nd August 2026

Expect isolated thunderstorms in Flagstaff, Arizona with a maximum temperature of 29°C, low levels of heat & humidity, maximum UV of 9 (Very High) and 7 hours of bright sunshine. There are 2-5 mm of rainfall expected with 60% chance of some rain and a light breeze of 10 kph from the south-west.

29
°C maximum temperature
15
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
9
UV index (Very High)
60
% chance of some rain
<5
mm of rainfall expected
L
low heat & humidity
10
kph wind from SW

Flagstaff weather for Sunday 23rd August 2026

Expect isolated thunderstorms in Flagstaff, Arizona with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 10 (Very High) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 72% chance of some rain and a light breeze of 11 kph from the south-west.