Today | Weather | Tuesday, July 21, 2026

Active Weather Warnings

Heat Advisory

Weather in Shreveport, Louisiana

05:24 AM

Now

81° F

Feels Like 90°

Precipitation 0 %

Wind 6 mph

Humidity 83 %

Today

Day 100°

Night 82°

Precipitation 3 %

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.

Shreveport Weather Forecast Updated

30 minutes ago

Last updated on July 21, 2026 at 4:54 AM

Weather Forecast History

Last Year's Weather on This Day (July 21, 2025)

Day

97°

Night

79°

Wind

7 mph

Precipitation

1 %

Air Quality in Shreveport

NOW

18 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 4.08 µg/m³

PM₁₀ 7.77 µg/m³

O₃ 0.019 ppm

NO₂ 0.9 ppb

SO₂ 0.2 ppb

CO 0.08 ppm

NH₃ 2.66 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 – 4.08 µg/m³

PM₁₀ – 7.77 µg/m³

O₃ – 37.54 µg/m³

NO₂ – 1.61 µg/m³

SO₂ – 0.48 µg/m³

CO – 91.69 µg/m³

NH₃ – 2.66 µg/m³

NO – 0 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Shreveport

Moderate Expected Likely

Heat Advisory

Heat Advisory issued July 20 at 10:20PM CDT until July 21 at 8:00PM CDT by NWS Shreveport LA

Jul 20, 10:20 PM → Jul 21, 8:00 PM

WHAT: Heat index values up to 109.

WHERE: Portions of northwest Louisiana and east and northeast
Texas.

WHEN: Until 8 PM CDT Tuesday.

IMPACTS: Hot temperatures and high humidity may cause heat
illnesses.

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Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.

Updated: Jul 21, 4:54 AM Source: NWS Alert