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Sierra Vista 7-day weather forecast
Stacker created the forecast for Sierra Vista, Arizona using data from OpenWeather. This week's high is 94 °F on Thursday, while the low is 69 °F on Wednesday. There are expected to be 6 sunny days and rain on 4 days this week.
NWS Tucson AZ has issued a extreme heat watch until Saturday at 08:00 PM.
Monday, August 18
- High of 92 °F, low of 70 °F (30% humidity)- Mostly sunny with a 28% chance of rain (0 mm of rain)
- Very high risk of harm from sun exposure (11 UV index)
- Moderate breeze (15 mph wind)
- Sunrise at 5:48 AM, sunset at 7:01 PM
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1 / 6
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Tuesday, August 19
- High of 90 °F, low of 70 °F (37% humidity)
- Partly sunny with a 100% chance of rain (2 mm of rain)
- Very high risk of harm from sun exposure (11 UV index)
- Gentle breeze (9 mph wind)
- Sunrise at 5:49 AM, sunset at 7:00 PM
- Partly sunny with a 100% chance of rain (2 mm of rain)
- Very high risk of harm from sun exposure (11 UV index)
- Gentle breeze (9 mph wind)
- Sunrise at 5:49 AM, sunset at 7:00 PM

2 / 6
Rachasie // Shutterstock
Wednesday, August 20
- High of 92 °F, low of 69 °F (36% humidity)
- Mostly sunny with a 100% chance of rain (2 mm of rain)
- Very high risk of harm from sun exposure (11 UV index)
- Moderate breeze (14 mph wind)
- Sunrise at 5:49 AM, sunset at 6:59 PM
- Mostly sunny with a 100% chance of rain (2 mm of rain)
- Very high risk of harm from sun exposure (11 UV index)
- Moderate breeze (14 mph wind)
- Sunrise at 5:49 AM, sunset at 6:59 PM

3 / 6
Pablesku // Shutterstock
Thursday, August 21
- High of 94 °F, low of 72 °F (29% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (11 UV index)
- Moderate breeze (13 mph wind)
- Sunrise at 5:50 AM, sunset at 6:58 PM
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (11 UV index)
- Moderate breeze (13 mph wind)
- Sunrise at 5:50 AM, sunset at 6:58 PM

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Friday, August 22
- High of 94 °F, low of 69 °F (26% humidity)
- Sunny with a 94% chance of rain (4 mm of rain)
- Very high risk of harm from sun exposure (12 UV index)
- Moderate breeze (18 mph wind)
- Sunrise at 5:51 AM, sunset at 6:57 PM
- New moon
- Sunny with a 94% chance of rain (4 mm of rain)
- Very high risk of harm from sun exposure (12 UV index)
- Moderate breeze (18 mph wind)
- Sunrise at 5:51 AM, sunset at 6:57 PM
- New moon

5 / 6
supergenijalac // Shutterstock
Saturday, August 23
- High of 93 °F, low of 70 °F (25% humidity)
- Mostly sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (12 UV index)
- Gentle breeze (10 mph wind)
- Sunrise at 5:51 AM, sunset at 6:56 PM
- Mostly sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (12 UV index)
- Gentle breeze (10 mph wind)
- Sunrise at 5:51 AM, sunset at 6:56 PM
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Sunday, August 24
- High of 94 °F, low of 74 °F (23% humidity)
- Fair with a 0% chance of rain
- Very high risk of harm from sun exposure (12 UV index)
- Gentle breeze (11 mph wind)
- Sunrise at 5:52 AM, sunset at 6:54 PM
- Fair with a 0% chance of rain
- Very high risk of harm from sun exposure (12 UV index)
- Gentle breeze (11 mph wind)
- Sunrise at 5:52 AM, sunset at 6:54 PM