Today | Weather | Sunday, April 26, 2026

Active Weather Warnings

Dense Fog Advisory

Weather in Chattanooga, Tennessee

07:03 AM

Now

59° F

Feels Like 59°

Precipitation 0 %

Wind 5 mph

UV Index (0 - 11+) 0

Humidity 94 %

Today

Day 82°

Night 59°

Precipitation 0 %

Wind 7 mph

UV Index (0 - 11+) 5

Chattanooga Weather Forecast Updated

Last updated on April 26, 2026 at 5:30 AM

Weather Forecast History

Last Year's Weather on This Day (April 26, 2025)

Day

81°

Night

55°

Wind

4 mph

UV Index

Precipitation

40 %

Air Quality in Chattanooga

NOW

13 AQI

Good air quality Dominant pollutant: PM_2.5

Pollutant Concentrations:

PM_2.5 3.14 µg/m³

PM₁₀ 6.54 µg/m³

O₃ 0.005 ppm

NO₂ 1.6 ppb

SO₂ 0 ppb

CO 0.11 ppm

NH₃ 4.65 µg/m³

NO 0.06 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 – 3.14 µg/m³

PM₁₀ – 6.54 µg/m³

O₃ – 9.25 µg/m³

NO₂ – 2.93 µg/m³

SO₂ – 0.1 µg/m³

CO – 123.16 µg/m³

NH₃ – 4.65 µg/m³

NO – 0.06 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Chattanooga

Moderate Expected Likely

Dense Fog Advisory

Dense Fog Advisory issued April 26 at 5:11AM EDT until April 26 at 10:00AM EDT by NWS Morristown TN

Apr 26, 6:00 AM → Apr 26, 10:00 AM

WHAT: Visibility one quarter to one half of a mile in dense fog.

WHERE: Portions of southwest North Carolina and east Tennessee.

WHEN: Until 10 AM EDT this morning.

IMPACTS: Low visibility could make driving conditions hazardous.

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If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

Updated: Apr 26, 5:30 AM Source: NWS Alert