Weather forecast for 10 daysSouth Tucson, AZ

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 86°F
  • 66°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 12mphE 94°
  • Humidity: 31%
  • UV index: 6
  • Sunrise: 6:29 am MST
  • Sunset: 5:47 pm MST
  • ▼
Today, a partly cloudy outlook will keep the sky interesting throughout the day.
The maximum expected temperature is a blazing 86°F, while the minimum temperature will be an enjoyable 66.2°F.
Today, the predicted peak temperature is set to be moderately higher than the typical October temperature of 81.1°F.
Sunrise will be at 6:29 am and sunset at 5:47 pm; the daylight will last for 11h and 18min.

10-day overview

Daily temperatures

Warmest period: Tuesday - Wednesday 90°C.
Coldest day: Tuesday 27.10. 77°C.

Chance of precipitation

Highest chance: Thursday 59%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 86°F
  • 66°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 12mphE 94°
  • Humidity: 31%
  • UV index: 6
  • Sunrise: 6:29 am MST
  • Sunset: 5:47 pm MST
  • ▼
  • Monday
  • Oct 19, 2026
  • 84°F
  • 66°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 7mphS 180°
  • Humidity: 44%
  • UV index: 6
  • Sunrise: 6:30 am MST
  • Sunset: 5:46 pm MST
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 90°F
  • 70°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 22%
  • Precipitation: 0"
  • Wind: 7mphS 170°
  • Humidity: 41%
  • UV index: 5
  • Sunrise: 6:31 am MST
  • Sunset: 5:45 pm MST
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 90°F
  • 72°F
Cloudy
Cloudy
  • Precip. probability: 24%
  • Precipitation: 0.08"
  • Wind: 9mphS 172°
  • Humidity: 42%
  • UV index: 4
  • Sunrise: 6:32 am MST
  • Sunset: 5:44 pm MST
  • ▼
  • Thursday
  • Oct 22, 2026
  • 84°F
  • 61°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 59%
  • Precipitation: 0.16"
  • Wind: 10mphSSW 200°
  • Humidity: 49%
  • UV index: 6
  • Sunrise: 6:32 am MST
  • Sunset: 5:43 pm MST
  • ▼
  • Friday
  • Oct 23, 2026
  • 79°F
  • 57°F
Sunny
Sunny
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 9mphWNW 298°
  • Humidity: 48%
  • UV index: 6
  • Sunrise: 6:33 am MST
  • Sunset: 5:42 pm MST
  • ▼
  • Saturday
  • Oct 24, 2026
  • 79°F
  • 57°F
Sunny
Sunny
  • Precip. probability: 13%
  • Precipitation: 0"
  • Wind: 9mphNE 36°
  • Humidity: 38%
  • UV index: 6
  • Sunrise: 6:34 am MST
  • Sunset: 5:41 pm MST
  • ▼
  • Sunday
  • Oct 25, 2026
  • 82°F
  • 63°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 16%
  • Precipitation: 0"
  • Wind: 11mphE 100°
  • Humidity: 36%
  • UV index: 6
  • Sunrise: 6:35 am MST
  • Sunset: 5:40 pm MST
  • ▼
  • Monday
  • Oct 26, 2026
  • 79°F
  • 61°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 10%
  • Precipitation: 0"
  • Wind: 9mphS 177°
  • Humidity: 42%
  • UV index: 6
  • Sunrise: 6:36 am MST
  • Sunset: 5:39 pm MST
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 77°F
  • 61°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 9mphS 178°
  • Humidity: 44%
  • UV index: 6
  • Sunrise: 6:36 am MST
  • Sunset: 5:38 pm MST
  • ▼
Models point to a combination of cloudy, sunny and storm-filled weather is expected.
Rainfall is anticipated on Wednesday and Thursday.
Temperature differences will be noticeable in the upcoming period. The maximum temperature will vary between 77°F and 89.6°F, while the variation in nighttime lows will be also notably wide, as the lowest temperatures will be recorded between 57.2°F and 71.6°F.
The hottest days will be Tuesday and Wednesday, with a maximum of 89.6°F; with the highest temperature of 77°F, next Tuesday will be the coldest day.
Updated: Oct 18, 2026 @ 12:30:11 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, in South Tucson, clouds and sunshine will create a dynamic sky throughout the day.

Today, the highest temperature will be 86°F, while the lowest temperature will be 66.2°F.
Today, the maximum temperature will be slightly warmer than the average highest temperature in October. The lowest temperature today will be also moderately higher than the average low temperature.

On Sunday, in South Tucson, sunrise will be at 6:29 am and sunset at 5:47 pm (MST).

In South Tucson, the length of the day today will be 11h and 18min.