Today | Weather | Sunday, April 19, 2026

Active Weather Warnings

Wind Advisory

Weather in Tucson, Arizona

04:32 AM

Now

66° F

Feels Like 64°

Precipitation 0 %

Wind 8 mph

Humidity 17 %

Today

Day 90°

Night 61°

Precipitation 0 %

Wind 9 mph

UV Index (0 - 11+) 10

Warning: High UV Index Today: 10

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

Tucson Weather Forecast Updated

Last updated on April 19, 2026 at 3:10 AM

Weather Forecast History

Last Year's Weather on This Day (April 19, 2025)

Day

68°

Night

48°

Wind

8 mph

UV Index

Precipitation

9 %

Air Quality in Tucson

NOW

34 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 5.39 µg/m³

PM₁₀ 15.71 µg/m³

O₃ 0.037 ppm

NO₂ 0.6 ppb

SO₂ 0.1 ppb

CO 0.10 ppm

NH₃ 13.92 µg/m³

NO 0 µg/m³

PM_2.5 – Fine particles <2.5μm

PM₁₀ – Inhalable particles <10μm

O₃ – Ozone

NO₂ – Nitrogen dioxide

SO₂ – Sulfur dioxide

CO – Carbon monoxide

NH₃ – Ammonia

NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)

PM_2.5 – 5.39 µg/m³

PM₁₀ – 15.71 µg/m³

O₃ – 72.6 µg/m³

NO₂ – 1.16 µg/m³

SO₂ – 0.17 µg/m³

CO – 115.43 µg/m³

NH₃ – 13.92 µg/m³

NO – 0 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Tucson

Moderate Expected Likely

Wind Advisory

Wind Advisory issued April 19 at 3:09AM MST until April 19 at 1:00PM MST by NWS Tucson AZ

Apr 19, 4:09 AM → Apr 19, 2:00 PM

WHAT: East to southeast winds 25 to 30 mph with gusts up to 40 mph
expected. Although the strongest sustained winds may be blocked in
some locations by the terrain, those east to southeast aligned
valleys are the most likely to experience impactful winds.

WHERE: South Central Pinal County, Southeast Pinal County, Tucson
Metro Area, Upper San Pedro River Valley, and Upper Santa Cruz
River Valley/Altar Valley.

WHEN: Until 1 PM MST this afternoon.

IMPACTS: Areas of blowing dust reducing visibility may be possible
at times. Gusty winds will blow around outdoor loose and unsecured
objects.

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Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.

Updated: Apr 19, 4:10 AM Source: NWS Alert