Weather forecast for 10 daysTacna, AZ

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 86°F
  • 64°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 9mphNE 43°
  • Humidity: 38%
  • UV index: 6
  • Sunrise: 6:42 am MST
  • Sunset: 5:59 pm MST
  • ▼
Tomorrow, in Tacna, sunshine is also forecasted under mostly clear skies.
The temperature will fluctuate from a high of a hot 86°F to a low of a comfortable 64.4°F.
Tomorrow's peak is predicted to reflect the usual October high temperature of 86.9°F.
Sunrise will be at 6:42 am and sunset at 5:59 pm; tomorrow's daylight will last for 11h and 17min.

10-day overview

Daily temperatures

Warmest day: Tuesday 91°C.
Coldest day: Friday 81°C.

Chance of precipitation

Highest chance: Thursday 9%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 66°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 5mphNNE 14°
  • Humidity: 39%
  • UV index: 0
  • Sunrise: 6:41 am MST
  • Sunset: 6:00 pm MST
  • ▼
  • Sunday
  • Oct 18, 2026
  • 86°F
  • 64°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 9mphNE 43°
  • Humidity: 38%
  • UV index: 6
  • Sunrise: 6:42 am MST
  • Sunset: 5:59 pm MST
  • ▼
  • Monday
  • Oct 19, 2026
  • 90°F
  • 66°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 5mphENE 64°
  • Humidity: 40%
  • UV index: 6
  • Sunrise: 6:43 am MST
  • Sunset: 5:58 pm MST
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 91°F
  • 72°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 9mphSE 129°
  • Humidity: 43%
  • UV index: 6
  • Sunrise: 6:43 am MST
  • Sunset: 5:57 pm MST
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 90°F
  • 72°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 14mphSE 146°
  • Humidity: 47%
  • UV index: 6
  • Sunrise: 6:44 am MST
  • Sunset: 5:56 pm MST
  • ▼
  • Thursday
  • Oct 22, 2026
  • 84°F
  • 61°F
Sunny
Sunny
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 12mphWSW 237°
  • Humidity: 48%
  • UV index: 6
  • Sunrise: 6:45 am MST
  • Sunset: 5:55 pm MST
  • ▼
  • Friday
  • Oct 23, 2026
  • 81°F
  • 59°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 8mphNW 306°
  • Humidity: 41%
  • UV index: 6
  • Sunrise: 6:46 am MST
  • Sunset: 5:53 pm MST
  • ▼
  • Saturday
  • Oct 24, 2026
  • 82°F
  • 61°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphNNE 25°
  • Humidity: 34%
  • UV index: 6
  • Sunrise: 6:47 am MST
  • Sunset: 5:52 pm MST
  • ▼
  • Sunday
  • Oct 25, 2026
  • 82°F
  • 63°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphENE 70°
  • Humidity: 34%
  • UV index: 6
  • Sunrise: 6:47 am MST
  • Sunset: 5:51 pm MST
  • ▼
  • Monday
  • Oct 26, 2026
  • 82°F
  • 63°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 8mphE 99°
  • Humidity: 40%
  • UV index: 6
  • Sunrise: 6:48 am MST
  • Sunset: 5:50 pm MST
  • ▼
Over the next ten days, conditions will reflect that a combination of sunny and overcast weather is expected.
Rainfall is not predicted in Tacna in the upcoming days.
In the upcoming period, the highest temperature will range between 80.6°F and 91.4°F, while the fluctuation in night temperatures will be significant, as nighttime lows are forecast to fall between 59°F and 71.6°F.
Expect the hottest day on Tuesday, with temperatures peaking at 91.4°F; expect the coldest day on Friday with a high of 80.6°F.
Updated: Oct 18, 2026 @ 02:20:36 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, in Tacna, bright and sunny weather is expected.

Tomorrow, the maximum temperature will be 86°F, while the minimum temperature will be 64.4°F.
Tomorrow, the maximum temperature will be in line with the average highest temperature in October. Tomorrow, the lowest temperature will be a few degrees lower than the average low temperature.

On Sunday, in Tacna, sunrise will be at 6:42 am and sunset at 5:59 pm (MST).

In Tacna, the length of the day tomorrow will be 11h and 17min.