Today | Weather | Saturday, August 29, 2026

Active Weather Warnings

Air Quality Alert

Weather in DeSoto, Texas

03:55 AM

Now

79° F

Feels Like 81°

Precipitation 0 %

Wind 7 mph

Humidity 71 %

Today

Day 102°

Night 79°

Precipitation 1 %

Wind 7 mph

UV Index (0 - 11+) 9

Warning: High UV Index Today: 9

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.

DeSoto Weather Forecast Updated

38 minutes ago

Last updated on August 29, 2026 at 3:17 AM

Weather Forecast History

Last Year's Weather on This Day (August 29, 2025)

Day

84°

Night

72°

Air Quality in DeSoto

NOW

33 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 4.32 µg/m³

PM₁₀ 5.24 µg/m³

O₃ 0.035 ppm

NO₂ 1.1 ppb

SO₂ 0.3 ppb

CO 0.12 ppm

NH₃ 1.19 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 – 4.32 µg/m³

PM₁₀ – 5.24 µg/m³

O₃ – 68.99 µg/m³

NO₂ – 2.08 µg/m³

SO₂ – 0.66 µg/m³

CO – 139.26 µg/m³

NH₃ – 1.19 µg/m³

NO – 0 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for DeSoto

Air Quality Alert

Air Quality Alert issued August 28 at 3:47PM CDT by NWS Fort Worth TX

Aug 28, 3:47 PM → Aug 29, 7:00 PM

AQAFWD

The Texas Commission on Environmental Quality (TCEQ) has issued
an Ozone Action Day for the Dallas-Fort Worth area for Saturday,
August 29, 2026.

Atmospheric conditions are expected to be favorable for producing
high levels of ozone air pollution in the Dallas-Fort Worth area
on Saturday. You can help prevent ozone pollution by sharing a
ride, walking, riding a bicycle, taking your lunch to work,
avoiding drive-through lanes, conserving energy, and keeping your
vehicle properly tuned.

For more information on ozone:

Ozone: The Facts (www.tceq.texas.gov/goto/ozonefacts)

Air North Texas: (www.airnorthtexas.org)

EPA Air Now
(www.airnow.gov/index.cfm?action.local_state&STATEID=45&TAB=0)

Take care of Texas (www.takecareoftexas.org)

North Central Texas Council of Governments Air Quality
(www.nctcog.org/trans/air/index.asp)

Updated: Aug 29, 3:17 AM Source: NWS Alert