Weather forecast for 10 daysSierra Vista, CA
Weather forecast for the weekend
Sunday Oct 18, 2026
- 90°F
- 54°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphW 279°
- Humidity: 20%
- UV index: 5
- Sunrise: 7:12 am PDT
- Sunset: 6:20 pm PDT
- details ▼
Today, on Sunday, October 18, the forecast calls for abundant sunshine.
The temperature will peak at a tropical 89.6°F during the day, dropping to a low of a fresh 53.6°F at night.
Today, the temperature forecast of 89.6°F will better match September's climate average than that of October.
Sunrise was at 7:12 am and sunset will be at 6:20 pm; the daylight will last for 11h and 8min.
The temperature will peak at a tropical 89.6°F during the day, dropping to a low of a fresh 53.6°F at night.
Today, the temperature forecast of 89.6°F will better match September's climate average than that of October.
Sunrise was at 7:12 am and sunset will be at 6:20 pm; the daylight will last for 11h and 8min.
10-day overview
Daily temperatures
Warmest day: today 90°C.
Coldest period: Wednesday - Thursday 66°C.
Coldest period: Wednesday - Thursday 66°C.
Chance of precipitation
Highest chance: Wednesday 51%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 90°F
- 54°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphW 279°
- Humidity: 20%
- UV index: 5
- Sunrise: 7:12 am PDT
- Sunset: 6:20 pm PDT
- details ▼
- Monday
- Oct 19, 2026
- 79°F
- 50°F
Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 9mphNW 306°
- Humidity: 47%
- UV index: 5
- Sunrise: 7:13 am PDT
- Sunset: 6:19 pm PDT
- details ▼
- Tuesday
- Oct 20, 2026
- 75°F
- 54°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 6mphNW 306°
- Humidity: 52%
- UV index: 4
- Sunrise: 7:13 am PDT
- Sunset: 6:17 pm PDT
- details ▼
- Wednesday
- Oct 21, 2026
- 66°F
- 54°F
Showers
- Precip. probability: 51%
- Precipitation: 0.28"
- Wind: 5mphNW 304°
- Humidity: 75%
- UV index: 2
- Sunrise: 7:14 am PDT
- Sunset: 6:16 pm PDT
- details ▼
- Thursday
- Oct 22, 2026
- 66°F
- 50°F
AM Showers
- Precip. probability: 40%
- Precipitation: 0.04"
- Wind: 6mphWNW 287°
- Humidity: 84%
- UV index: 5
- Sunrise: 7:15 am PDT
- Sunset: 6:15 pm PDT
- details ▼
- Friday
- Oct 23, 2026
- 70°F
- 46°F
Partly Cloudy
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 8mphNW 310°
- Humidity: 76%
- UV index: 5
- Sunrise: 7:16 am PDT
- Sunset: 6:13 pm PDT
- details ▼
- Saturday
- Oct 24, 2026
- 73°F
- 46°F
Mostly Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 4mphSSW 213°
- Humidity: 66%
- UV index: 5
- Sunrise: 7:17 am PDT
- Sunset: 6:12 pm PDT
- details ▼
- Sunday
- Oct 25, 2026
- 75°F
- 46°F
Mostly Sunny
- Precip. probability: 13%
- Precipitation: 0"
- Wind: 4mphWSW 240°
- Humidity: 60%
- UV index: 4
- Sunrise: 7:18 am PDT
- Sunset: 6:11 pm PDT
- details ▼
- Monday
- Oct 26, 2026
- 77°F
- 46°F
Partly Cloudy
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 6mphNW 310°
- Humidity: 56%
- UV index: 4
- Sunrise: 7:19 am PDT
- Sunset: 6:10 pm PDT
- details ▼
- Tuesday
- Oct 27, 2026
- 73°F
- 45°F
Mostly Sunny
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 6mphNW 311°
- Humidity: 54%
- UV index: 4
- Sunrise: 7:20 am PDT
- Sunset: 6:09 pm PDT
- details ▼
dry and sunny, dull and showery weather is expected.
Rain is anticipated on Wednesday and Thursday.
Temperature differences will be noticeable over the next several days. The maximum temperature will vary between 66.2°F and 89.6°F, while the lowest temperature will be between 44.6°F and 53.6°F.
With a high of 89.6°F, today is the hottest day; with a maximum temperature of 66.2°F, Wednesday and Thursday will be the coldest days in Sierra Vista.
Rain is anticipated on Wednesday and Thursday.
Temperature differences will be noticeable over the next several days. The maximum temperature will vary between 66.2°F and 89.6°F, while the lowest temperature will be between 44.6°F and 53.6°F.
With a high of 89.6°F, today is the hottest day; with a maximum temperature of 66.2°F, Wednesday and Thursday will be the coldest days in Sierra Vista.
Updated: Oct 18, 2026 @ 19:50:05 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
Today, sunshine is forecasted under mostly clear skies.
Today, the highest temperature will be 89.6°F, while the lowest temperature will be 53.6°F.
Today, the maximum temperature will be significantly higher than the average highest temperature of 79°F in October. The lowest temperature today will be in line with the average low temperature.
Today, the maximum temperature will be significantly higher than the average highest temperature of 79°F in October. The lowest temperature today will be in line with the average low temperature.
On Sunday, in Sierra Vista, sunrise was at 7:12 am and sunset will be at 6:20 pm (PDT).
In Sierra Vista, California, the length of the day today will be 11h and 8min.
