Today | Weather | Monday, June 29, 2026

Active Weather Warnings

Heat Advisory

Weather in Gary, Indiana

08:08 PM

Now

88° F

Feels Like 97°

Precipitation 0 %

Wind 9 mph

UV Index (0 - 11+) 0

Humidity 71 %

Today

Day 95°

Night 75°

Precipitation 20 %

Wind 12 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.

Gary Weather Forecast Updated

Last updated on June 29, 2026 at 6:40 PM

Air Quality in Gary

NOW

24 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 4.1 µg/m³

PM₁₀ 5.49 µg/m³

O₃ 0.026 ppm

NO₂ 1.1 ppb

SO₂ 0.3 ppb

CO 0.10 ppm

NH₃ 1.19 µg/m³

NO 0.05 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 – 4.1 µg/m³

PM₁₀ – 5.49 µg/m³

O₃ – 51.27 µg/m³

NO₂ – 1.99 µg/m³

SO₂ – 0.75 µg/m³

CO – 119.57 µg/m³

NH₃ – 1.19 µg/m³

NO – 0.05 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Gary

Moderate Expected Likely

Heat Advisory

Heat Advisory issued June 29 at 3:13PM CDT until July 1 at 10:00PM CDT by NWS Chicago IL

Jun 29, 3:13 PM → Jul 1, 10:00 PM

WHAT: Heat index values around 105 expected each afternoon

WHERE: Portions of central, east central, north central, and
northeast Illinois and northwest Indiana.

WHEN: Until 10 PM CDT /11 PM EDT/ Wednesday.

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. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.

Updated: Jun 29, 6:40 PM Source: NWS Alert