Sierra Vista weather live forecast

Today's maximum temperature in Sierra Vista is expected to be 34°C. Select a day from the live weather forecast for Sierra Vista, Arizona, USA for more weather parameters.

Friday
21st Aug
34

22

8

10
Saturday
22nd Aug
36

22

10

11
Sunday
23rd Aug
37

21

11

11
Monday
24th Aug
37

21

9

10
Tuesday
25th Aug
37

21

10

11

5-day weather forecast updated at 04:01 on Friday 21st August 2026 GMT

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

Sierra Vista weather forecast by day

Below are the detailed weather forecasts for Sierra Vista for the next 5 days.

Sierra Vista weather for Friday 21st August 2026

Expect scattered clouds in Sierra Vista, Arizona with a maximum temperature of 34°C, high levels of heat & humidity, maximum UV of 10 (Very High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the west.

34
°C maximum temperature
22
°C minimum temperature
scattered clouds
8
hours of sunshine
10
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
12
kph wind from W

Sierra Vista weather for Saturday 22nd August 2026

Expect scattered clouds in Sierra Vista, Arizona with a maximum temperature of 36°C, high levels of heat & humidity, maximum UV of 11+ (Extreme) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the west.

36
°C maximum temperature
22
°C minimum temperature
scattered clouds
10
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
H
high heat & humidity
13
kph wind from W

Sierra Vista weather for Sunday 23rd August 2026

Expect scattered clouds in Sierra Vista, Arizona with a maximum temperature of 37°C, high levels of heat & humidity, maximum UV of 11 (Extreme) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the west.

37
°C maximum temperature
21
°C minimum temperature
scattered clouds
11
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
H
high heat & humidity
14
kph wind from W

Sierra Vista weather for Monday 24th August 2026

Expect scattered clouds in Sierra Vista, Arizona with a maximum temperature of 37°C, high levels of heat & humidity, maximum UV of 10 (Very High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the west.

37
°C maximum temperature
21
°C minimum temperature
scattered clouds
9
hours of sunshine
10
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
14
kph wind from W

Sierra Vista weather for Tuesday 25th August 2026

Expect scattered clouds in Sierra Vista, Arizona with a maximum temperature of 37°C, high levels of heat & humidity, maximum UV of 11 (Extreme) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the west.