Weather forecast for todayTacna, AZ

Weather forecast for today

Current condition 7:47 am MST

  • 75°F
  • Feels like:
    75°F
Partly Cloudy
Partly Cloudy
  • Precipitation: 0"
  • Wind: 3mphE 80°
  • Humidity: 68%
  • Dewpoint: 64°F
  • Pressure: 29.84"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
In Tacna, at the moment, the sky is partly cloudy, with periods of sunshine.
The temperature is a temperate 75.2°F. The current temperature is near the lowest anticipated 71.6°F for today.

Wednesday Oct 21, 2026

  • 91°F
  • 72°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 15mphSE 140°
  • Humidity: 50%
  • UV index: 5
  • Sunrise: 6:44 am MST
  • Sunset: 5:56 pm MST
  • ▼
Today, mostly cloudy conditions are expected.
The temperature will fluctuate from a high of a blazing 91.4°F to a low of a delightful 71.6°F.
The maximum heat index, which indicates how humid air affects the felt temperature, is computed to be a fiery hot 96.8°F. Take into consideration that the heat index values are calculated for shade and light wind conditions. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
The temperature is expected to be a couple of degrees higher than the standard October peak of 86.9°F.
Sunrise was at 6:44 am and sunset will be at 5:56 pm; the daylight will last for 11h and 11min.

Hourly overview

Hourly temperatures

Warmest hour: 2 pm 91°C.
Coldest hour: 8 am 75°C.

Chance of precipitation

Highest chance: 10 am 6%.

Hourly weather forecast

  • 8 am
  • 75°F
  • Feels like:
    75°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 4mphE 79°
  • Humidity: 67%
  • Pressure: 29.83"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 9 am
  • 79°F
  • Feels like:
    82°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 10%
  • Precipitation: 0"
  • Wind: 6mphENE 73°
  • Humidity: 63%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 10 am
  • 81°F
  • Feels like:
    84°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 7mphE 87°
  • Humidity: 57%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 11 am
  • 84°F
  • Feels like:
    86°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 11mphESE 104°
  • Humidity: 50%
  • Pressure: 29.83"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 12 pm
  • 88°F
  • Feels like:
    90°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 13mphSE 131°
  • Humidity: 45%
  • Pressure: 29.83"Hg
  • Visibility: 10mi
  • UV index: 5
  • ▼
  • 1 pm
  • 90°F
  • Feels like:
    91°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 13mphSSE 169°
  • Humidity: 42%
  • Pressure: 29.8"Hg
  • Visibility: 10mi
  • UV index: 5
  • ▼
  • 2 pm
  • 90°F
  • Feels like:
    91°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 14mphS 173°
  • Humidity: 41%
  • Pressure: 29.77"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 3 pm
  • 90°F
  • Feels like:
    91°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 15mphS 178°
  • Humidity: 40%
  • Pressure: 29.77"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 4 pm
  • 88°F
  • Feels like:
    90°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 14mphS 179°
  • Humidity: 41%
  • Pressure: 29.74"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 5 pm
  • 88°F
  • Feels like:
    90°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 13mphS 175°
  • Humidity: 41%
  • Pressure: 29.74"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 5:56 pm
  • 6 pm
  • 86°F
  • Feels like:
    88°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphS 172°
  • Humidity: 43%
  • Pressure: 29.77"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 7 pm
  • 84°F
  • Feels like:
    86°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphSSE 156°
  • Humidity: 47%
  • Pressure: 29.77"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 82°F
  • Feels like:
    84°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphSE 141°
  • Humidity: 52%
  • Pressure: 29.8"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 9 pm
  • 81°F
  • Feels like:
    82°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphSE 129°
  • Humidity: 55%
  • Pressure: 29.8"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 79°F
  • Feels like:
    81°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphSE 124°
  • Humidity: 57%
  • Pressure: 29.8"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 11 pm
  • 77°F
  • Feels like:
    81°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphSE 129°
  • Humidity: 61%
  • Pressure: 29.8"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Today, expect mostly cloudy skies.
The temperature will vary between a maximum of 89.6°F and a minimum of 75.2°F. The hottest part of the day will be from 1 pm to 3 pm.
The forecasted high will be a few degrees higher than the typical October maximum of 86.9°F. The lowest temperature is also resembling October's typical minimum of 69.1°F.
Updated: Oct 21, 2026 @ 14:47:50 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Currently (7:47 am MST) it is 75.2°F in Tacna.

On Wednesday, a dense overcast layer will shape the day’s outlook.

Today, the maximum temperature will be 91.4°F, while the minimum temperature will be 71.6°F. The maximum heat index, which combines relative humidity and air temperature, is estimated at 96.8°F.
The maximum temperature will be moderately higher than the average highest temperature of 86.9°F in October. The lowest temperature will be in line with the average low of 69.1°F.

On Wednesday, in Tacna, sunrise was at 6:44 am and sunset will be at 5:56 pm (MST).

In Tacna, today, there will be 11h and 11min of daylight.