Weather forecast for 10 daysSierra Vista, AZ

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 79°F
  • 57°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 7mphSSE 162°
  • Humidity: 38%
  • UV index: 7
  • Sunrise: 6:26 am MST
  • Sunset: 5:45 pm MST
  • ▼
Today, open skies and radiant sunshine are expected.
The temperature is forecasted to oscillate between a maximum of a temperate 78.8°F and a minimum of a mild 57.2°F.
The highest temperature for today is predicted to reflect October's average of 75.6°F.
Sunrise was at 6:26 am and sunset will be at 5:45 pm; the daylight will last for 11h and 19min.

10-day overview

Daily temperatures

Warmest period: Tuesday - Wednesday 82°C.
Coldest period: Monday - Tuesday 73°C.

Chance of precipitation

Highest chance: Thursday 36%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 79°F
  • 57°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 7mphSSE 162°
  • Humidity: 38%
  • UV index: 7
  • Sunrise: 6:26 am MST
  • Sunset: 5:45 pm MST
  • ▼
  • Monday
  • Oct 19, 2026
  • 77°F
  • 59°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 18%
  • Precipitation: 0"
  • Wind: 9mphS 185°
  • Humidity: 59%
  • UV index: 7
  • Sunrise: 6:27 am MST
  • Sunset: 5:44 pm MST
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 82°F
  • 63°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 10mphS 179°
  • Humidity: 52%
  • UV index: 6
  • Sunrise: 6:28 am MST
  • Sunset: 5:43 pm MST
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 82°F
  • 64°F
Cloudy
Cloudy
  • Precip. probability: 11%
  • Precipitation: 0"
  • Wind: 10mphS 175°
  • Humidity: 49%
  • UV index: 4
  • Sunrise: 6:28 am MST
  • Sunset: 5:42 pm MST
  • ▼
  • Thursday
  • Oct 22, 2026
  • 79°F
  • 55°F
AM Thunderstorms
AM Thunderstorms
  • Precip. probability: 36%
  • Precipitation: 0.04"
  • Wind: 14mphSSW 195°
  • Humidity: 56%
  • UV index: 6
  • Sunrise: 6:29 am MST
  • Sunset: 5:41 pm MST
  • ▼
  • Friday
  • Oct 23, 2026
  • 77°F
  • 52°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 11mphSSW 213°
  • Humidity: 49%
  • UV index: 6
  • Sunrise: 6:30 am MST
  • Sunset: 5:40 pm MST
  • ▼
  • Saturday
  • Oct 24, 2026
  • 75°F
  • 52°F
Sunny
Sunny
  • Precip. probability: 14%
  • Precipitation: 0"
  • Wind: 9mphS 177°
  • Humidity: 42%
  • UV index: 6
  • Sunrise: 6:31 am MST
  • Sunset: 5:39 pm MST
  • ▼
  • Sunday
  • Oct 25, 2026
  • 75°F
  • 55°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 18%
  • Precipitation: 0"
  • Wind: 9mphSSE 148°
  • Humidity: 46%
  • UV index: 6
  • Sunrise: 6:31 am MST
  • Sunset: 5:38 pm MST
  • ▼
  • Monday
  • Oct 26, 2026
  • 73°F
  • 54°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 21%
  • Precipitation: 0"
  • Wind: 10mphSSE 166°
  • Humidity: 50%
  • UV index: 6
  • Sunrise: 6:32 am MST
  • Sunset: 5:37 pm MST
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 73°F
  • 54°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 9mphS 177°
  • Humidity: 51%
  • UV index: 6
  • Sunrise: 6:33 am MST
  • Sunset: 5:36 pm MST
  • ▼
Looking ahead, conditions suggest a period of cloudy, dry and sunny and turbulent weather is predicted.
With a probability of 36%, rainfall is anticipated only on Thursday. The precipitation will be minimal at 0.04".
In the upcoming days, the maximum temperature will range between 73.4°F and 82.4°F, while the lowest nightly temperature differences will be quite pronounced, as the minimum temperature is expected to range between 51.8°F and 64.4°F.
With a maximum temperature of 82.4°F, Tuesday and Wednesday will be the warmest days in Sierra Vista; next Monday and Tuesday, with the highest temperature of 73.4°F, will be the coldest days in Sierra Vista.
Updated: Oct 18, 2026 @ 15:40:26 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, blue skies and warm sunshine will define the conditions.

Today, the maximum temperature will be 78.8°F, while the minimum temperature will be 57.2°F.
The maximum temperature today will be in line with the average highest temperature in October. The lowest temperature will be also in line with the average low of 54.1°F.

On Sunday, in Sierra Vista, sunrise was at 6:26 am and sunset will be at 5:45 pm (MST).

Today, the daylight will last for 11h and 19min.