Weather forecast for 10 daysGreen Valley, AZ

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 84°F
  • 63°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 12%
  • Precipitation: 0"
  • Wind: 6mphSSW 203°
  • Humidity: 38%
  • UV index: 7
  • Sunrise: 6:29 am MST
  • Sunset: 5:48 pm MST
  • ▼
Today, on Sunday, October 18, expect a mix of sun and clouds throughout the day.
Temperature span will be from a high of a moderately hot 84.2°F to a low of a breezy 62.6°F.
The expected maximum is expected to be in line with the regular October temperature of 81°F.
Sunrise will be at 6:29 am and sunset at 5:48 pm; the daylight will last for 11h and 19min.

10-day overview

Daily temperatures

Warmest period: Tuesday - Wednesday 88°C.
Coldest day: Tuesday 27.10. 77°C.

Chance of precipitation

Highest chance: Thursday 24%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 84°F
  • 63°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 12%
  • Precipitation: 0"
  • Wind: 6mphSSW 203°
  • Humidity: 38%
  • UV index: 7
  • Sunrise: 6:29 am MST
  • Sunset: 5:48 pm MST
  • ▼
  • Monday
  • Oct 19, 2026
  • 84°F
  • 63°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 10mphSSW 198°
  • Humidity: 47%
  • UV index: 6
  • Sunrise: 6:30 am MST
  • Sunset: 5:47 pm MST
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 88°F
  • 68°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 11mphSSW 192°
  • Humidity: 45%
  • UV index: 5
  • Sunrise: 6:31 am MST
  • Sunset: 5:46 pm MST
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 88°F
  • 70°F
Cloudy
Cloudy
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 12mphS 185°
  • Humidity: 44%
  • UV index: 4
  • Sunrise: 6:31 am MST
  • Sunset: 5:45 pm MST
  • ▼
  • Thursday
  • Oct 22, 2026
  • 82°F
  • 57°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 17mphSSW 199°
  • Humidity: 50%
  • UV index: 6
  • Sunrise: 6:32 am MST
  • Sunset: 5:44 pm MST
  • ▼
  • Friday
  • Oct 23, 2026
  • 79°F
  • 54°F
Sunny
Sunny
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 9mphSW 231°
  • Humidity: 48%
  • UV index: 6
  • Sunrise: 6:33 am MST
  • Sunset: 5:43 pm MST
  • ▼
  • Saturday
  • Oct 24, 2026
  • 79°F
  • 55°F
Sunny
Sunny
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 8mphSSW 206°
  • Humidity: 38%
  • UV index: 6
  • Sunrise: 6:34 am MST
  • Sunset: 5:42 pm MST
  • ▼
  • Sunday
  • Oct 25, 2026
  • 81°F
  • 59°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 13%
  • Precipitation: 0"
  • Wind: 10mphSSE 153°
  • Humidity: 40%
  • UV index: 6
  • Sunrise: 6:35 am MST
  • Sunset: 5:40 pm MST
  • ▼
  • Monday
  • Oct 26, 2026
  • 79°F
  • 57°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 11mphS 182°
  • Humidity: 45%
  • UV index: 6
  • Sunrise: 6:35 am MST
  • Sunset: 5:39 pm MST
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 77°F
  • 57°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 10mphS 185°
  • Humidity: 48%
  • UV index: 6
  • Sunrise: 6:36 am MST
  • Sunset: 5:39 pm MST
  • ▼
Throughout the next ten days, a combination of cloud-filled and mostly clear weather is anticipated.
Rainfall is not expected in Green Valley in the upcoming days.
In the upcoming period, the highest temperature will range between 77°F and 87.8°F, while the variation in nighttime lows will be notably wide, as nighttime lows are forecast to fall between 53.6°F and 69.8°F.
The hottest days will be Tuesday and Wednesday, with a maximum of 87.8°F; next Tuesday will be the coldest day, with the highest temperature of 77°F.
Updated: Oct 18, 2026 @ 08:18:15 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, clouds will come and go, but expect bright periods in between.

Today, the highest temperature will be 84.2°F, while the lowest temperature will be 62.6°F.
The highest temperature will be in line with the average maximum of 81°F in October. Today, the lowest temperature will be also in line with the average low temperature.

On Sunday, in Green Valley, sunrise will be at 6:29 am and sunset at 5:48 pm (MST).

In Green Valley, today, there will be 11h and 19min of daylight.