Today | Weather | Monday, June 29, 2026

Active Weather Warnings

Heat Advisory

Weather in Fort Smith, Arkansas

08:09 PM

Now

91° F

Feels Like 95°

Precipitation 0 %

Wind 8 mph

UV Index (0 - 11+) 0

Humidity 55 %

Today

Day 95°

Night 77°

Precipitation 1 %

Wind 10 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.

Fort Smith Weather Forecast Updated

Last updated on June 29, 2026 at 6:57 PM

Air Quality in Fort Smith

NOW

31 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 4.46 µg/m³

PM₁₀ 8.33 µg/m³

O₃ 0.033 ppm

NO₂ 0.7 ppb

SO₂ 0.7 ppb

CO 0.09 ppm

NH₃ 1.23 µg/m³

NO 0.07 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 – 4.46 µg/m³

PM₁₀ – 8.33 µg/m³

O₃ – 65.12 µg/m³

NO₂ – 1.32 µg/m³

SO₂ – 1.83 µg/m³

CO – 100.66 µg/m³

NH₃ – 1.23 µg/m³

NO – 0.07 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Fort Smith

Moderate Expected Likely

Heat Advisory

Heat Advisory issued June 29 at 11:39AM CDT until June 29 at 8:00PM CDT by NWS Tulsa OK

Jun 29, 1:00 PM → Jun 29, 8:00 PM

WHAT: Heat index values up to 105 expected.

WHERE: Portions of northwest and west central Arkansas and east
central, northeast, and southeast Oklahoma.

WHEN: Until 8 PM CDT this evening.

IMPACTS: Heat related illnesses are possible especially impacting
those not acclimated to the conditions or those performing
strenuous activities.

+ Read More

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: Jun 29, 6:57 PM Source: NWS Alert