Today | Weather | Saturday, September 19, 2026

Active Weather Warnings

Heat Advisory

Weather in Evansville, Indiana

03:02 PM

Now

99° F

Feels Like 100°

Precipitation 12 %

Wind 9 mph

UV Index (0 - 11+) 4

Humidity 33 %

Today

Day 99°

Night 70°

Precipitation 55 %

Wind 8 mph

UV Index (0 - 11+) 6

Evansville Weather Forecast Updated

Last updated on September 19, 2026 at 2:00 PM

Weather Forecast History

Last Year's Weather on This Day (September 19, 2025)

Day

93°

Night

64°

Wind

5 mph

Precipitation

80 %

Air Quality in Evansville

NOW

73 AQI

Moderate air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 9.16 µg/m³

PM₁₀ 10.31 µg/m³

O₃ 0.061 ppm

NO₂ 0.3 ppb

SO₂ 0.7 ppb

CO 0.12 ppm

NH₃ 0.9 µg/m³

NO 0.08 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 acceptable; however, for some pollutants, there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Show raw pollutant concentrations (µg/m³)

PM_2.5 – 9.16 µg/m³

PM₁₀ – 10.31 µg/m³

O₃ – 120.67 µg/m³

NO₂ – 0.63 µg/m³

SO₂ – 1.78 µg/m³

CO – 140.36 µg/m³

NH₃ – 0.9 µg/m³

NO – 0.08 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Evansville

Moderate Expected Likely

Heat Advisory

Heat Advisory issued September 19 at 10:19AM CDT until September 20 at 7:00PM CDT by NWS Paducah KY

Sep 19, 10:19 AM → Sep 20, 7:00 PM

WHAT: Peak Heat Index values up to around 100 degrees this
weekend.

WHERE: All of southern Illinois, southwest Indiana, western
Kentucky, and southeast Missouri.

WHEN: Until 7 PM CDT /8 PM EDT/ Sunday.

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

ADDITIONAL DETAILS: The Heat Advisory was extended thru the
weekend due to the prolonged high heat conditions that have
basically been ongoing for the entirety of the past week; this
continues to heighten the risk of heat-related health impacts.

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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: Sep 19, 2:00 PM Source: NWS Alert