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Active Weather Warnings

Flood Warning

Weather in Fort Smith, Arkansas

11:21 AM

Now

82° F

Feels Like 88°

Precipitation 40 %

Wind 15 mph

UV Index (0 - 11+) 4

Humidity 66 %

Today

Day 90°

Night 64°

Precipitation 55 %

Wind 14 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.

Fort Smith Weather Forecast Updated

43 minutes ago

Last updated on April 27, 2026 at 10:37 AM

Air Quality in Fort Smith

NOW

14 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 2.52 µg/m³

PM₁₀ 3.41 µg/m³

O₃ 0.015 ppm

NO₂ 1.2 ppb

SO₂ 0.2 ppb

CO 0.11 ppm

NH₃ 0.49 µg/m³

NO 0.22 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 – 2.52 µg/m³

PM₁₀ – 3.41 µg/m³

O₃ – 30 µg/m³

NO₂ – 2.2 µg/m³

SO₂ – 0.59 µg/m³

CO – 122.24 µg/m³

NH₃ – 0.49 µg/m³

NO – 0.22 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Fort Smith

Severe Immediate Observed

Flood Warning

Flood Warning issued April 26 at 1:57PM CDT until April 27 at 9:07PM CDT by NWS Tulsa OK

Apr 26, 1:57 PM → Apr 27, 9:07 PM

...The Flood Warning continues for the following rivers in
Oklahoma...

Poteau River near Panama affecting Le Flore County.

WHAT: Minor flooding is forecast.

WHERE: Poteau River near Panama.

WHEN: Until late tomorrow evening.

IMPACTS: At 31.0 feet, minor agricultural flooding occurs.
Williams Road east of Panama is flooded.

ADDITIONAL DETAILS:
- At 1:30 PM CDT Sunday the stage was 28.8 feet.
- Forecast...The river is expected to rise above flood stage
this afternoon to a crest of 30.9 feet just after midnight
tonight. It will then fall below flood stage tomorrow
afternoon.
- Flood stage is 29.0 feet.
- http://www.weather.gov/safety/flood

Updated: Apr 26, 6:44 PM Source: NWS Alert