Today | Weather | Wednesday, September 9, 2026

Active Weather Warnings

Severe Thunderstorm Watch

Weather in Youngstown, Ohio

09:18 PM

Now

75° F

Feels Like 73°

Precipitation 88 %

Wind 8 mph

Humidity 81 %

Today

Day 88°

Night 68°

Precipitation 100 %

Wind 6 mph

Youngstown Weather Forecast Updated

27 minutes ago

Last updated on September 09, 2026 at 8:50 PM

Air Quality in Youngstown

NOW

35 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 5.75 µg/m³

PM₁₀ 6.5 µg/m³

O₃ 0.038 ppm

NO₂ 1.6 ppb

SO₂ 0.7 ppb

CO 0.11 ppm

NH₃ 0.62 µg/m³

NO 0 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 – 5.75 µg/m³

PM₁₀ – 6.5 µg/m³

O₃ – 74.56 µg/m³

NO₂ – 2.99 µg/m³

SO₂ – 1.77 µg/m³

CO – 120.91 µg/m³

NH₃ – 0.62 µg/m³

NO – 0 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Youngstown

Severe Future Possible

Severe Thunderstorm Watch

Severe Thunderstorm Watch issued September 9 at 8:22PM EDT until September 9 at 11:00PM EDT by NWS Cleveland OH

Sep 9, 8:22 PM → Sep 9, 11:00 PM

SEVERE THUNDERSTORM WATCH 665 REMAINS VALID UNTIL 11 PM EDT THIS
EVENING FOR THE FOLLOWING AREAS

IN OHIO THIS WATCH INCLUDES 4 COUNTIES

IN NORTH CENTRAL OHIO

KNOX

IN NORTHEAST OHIO

HOLMES MAHONING STARK

THIS INCLUDES THE CITIES OF ALLIANCE, AUSTINTOWN, BOARDMAN,
CANTON, KILLBUCK, MASSILLON, MILLERSBURG, MOUNT VERNON,
AND YOUNGSTOWN.

Updated: Sep 9, 8:50 PM Source: NWS Alert