Today | Weather | Wednesday, May 13, 2026

Active Weather Warnings

Air Quality Alert

Weather in Richardson, Texas

09:38 AM

Now

77° F

Feels Like 82°

Precipitation 0 %

Wind 6 mph

UV Index (0 - 11+) 5

Humidity 51 %

Today

Day 91°

Night 70°

Precipitation 1 %

Wind 6 mph

UV Index (0 - 11+) 11

Warning: Extreme UV Index Today: 11

Overexposure to the sun's harmful UV rays can cause sunburn and increase the risk of developing skin cancer, including melanoma. Protect yourself by wearing clothing that covers your skin, sunglasses, and a hat. Apply a broad-spectrum sunscreen with an SPF of 30 or higher every two hours, even on cloudy days. Minimize direct sun exposure during peak hours (10 AM to 4 PM) to reduce the risk.

Richardson Weather Forecast Updated

15 minutes ago

Last updated on May 13, 2026 at 9:23 AM

Weather Forecast History

Last Year's Weather on This Day (May 13, 2025)

Day

97°

Night

73°

Wind

14 mph

UV Index

Precipitation

1 %

Air Quality in Richardson

NOW

28 AQI

Good air quality Dominant pollutant: PM_2.5

Pollutant Concentrations:

PM_2.5 6.76 µg/m³

PM₁₀ 7.5 µg/m³

O₃ 0.021 ppm

NO₂ 1.5 ppb

SO₂ 0.1 ppb

CO 0.14 ppm

NH₃ 2.3 µg/m³

NO 1.41 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 – 6.76 µg/m³

PM₁₀ – 7.5 µg/m³

O₃ – 42.02 µg/m³

NO₂ – 2.88 µg/m³

SO₂ – 0.34 µg/m³

CO – 159.48 µg/m³

NH₃ – 2.3 µg/m³

NO – 1.41 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Richardson

Air Quality Alert

Air Quality Alert issued May 12 at 4:45PM CDT by NWS Fort Worth TX

May 12, 4:45 PM → May 13, 7:45 PM

AQAFWD

The Texas Commission on Environmental Quality (TCEQ) has issued
an Ozone Action Day for the Dallas-Fort Worth area for Wednesday,
May 13, 2026.

Atmospheric conditions are expected to be favorable for producing
high levels of ozone air pollution in the Dallas-Fort Worth area
on Wednesday. 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: May 13, 9:23 AM Source: NWS Alert