Sierra Vista weather live forecast

Today's maximum temperature in Sierra Vista is expected to be 36°C. Select a day from the live weather forecast for Sierra Vista, Arizona, USA for more weather parameters.

Monday
17th Aug
36

20

12

11
Tuesday
18th Aug
34

20

11

10
Wednesday
19th Aug
36

20

11

10
Thursday
20th Aug
35

20

9

11
Friday
21st Aug
36

20

9

11

5-day weather forecast updated at 04:01 on Tuesday 18th 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 Monday 17th August 2026

Expect isolated thunderstorms in Sierra Vista, Arizona with a maximum temperature of 36°C, high levels of heat & humidity, maximum UV of 11 (Extreme) and 12 hours of bright sunshine. There are 5-10 mm of rainfall expected with 19% chance of some rain and a light breeze of 11 kph from the east.

36
°C maximum temperature
20
°C minimum temperature
isolated thunderstorms
12
hours of sunshine
11
UV index (Extreme)
19
% chance of some rain
<10
mm of rainfall expected
H
high heat & humidity
11
kph wind from E

Sierra Vista weather for Tuesday 18th 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 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the east.

34
°C maximum temperature
20
°C minimum temperature
scattered clouds
11
hours of sunshine
10
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
12
kph wind from E

Sierra Vista weather for Wednesday 19th August 2026

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

36
°C maximum temperature
20
°C minimum temperature
scattered clouds
11
hours of sunshine
10
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
13
kph wind from NE

Sierra Vista weather for Thursday 20th August 2026

Expect isolated thunderstorms in Sierra Vista, Arizona with a maximum temperature of 35°C, high levels of heat & humidity, maximum UV of 11 (Extreme) and 9 hours of bright sunshine. There are 2-5 mm of rainfall expected with 48% chance of some rain and a gentle breeze of 14 kph from the west.

35
°C maximum temperature
20
°C minimum temperature
isolated thunderstorms
9
hours of sunshine
11
UV index (Extreme)
48
% chance of some rain
<5
mm of rainfall expected
H
high heat & humidity
14
kph wind from W

Sierra Vista weather for Friday 21st August 2026

Expect isolated thunderstorms in Sierra Vista, Arizona with a maximum temperature of 36°C, high levels of heat & humidity, maximum UV of 11 (Extreme) and 9 hours of bright sunshine. There are 0-2 mm of rainfall expected with 26% chance of some rain and a light breeze of 11 kph from the west.