Today | Weather | Wednesday, August 12, 2026

Active Weather Warnings

Weather in Jonesboro, Arkansas

06:49 AM

Now

79° F

Feels Like 84°

Precipitation 0 %

Wind 8 mph

UV Index (0 - 11+) 1

Humidity 81 %

Today

Day 100°

Night 79°

Precipitation 1 %

Wind 12 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.

Jonesboro Weather Forecast Updated

46 minutes ago

Last updated on August 12, 2026 at 6:03 AM

Air Quality in Jonesboro

NOW

17 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 2.43 µg/m³

PM₁₀ 3.41 µg/m³

O₃ 0.019 ppm

NO₂ 1.5 ppb

SO₂ 0.6 ppb

CO 0.09 ppm

NH₃ 1.7 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 – 2.43 µg/m³

PM₁₀ – 3.41 µg/m³

O₃ – 36.42 µg/m³

NO₂ – 2.75 µg/m³

SO₂ – 1.56 µg/m³

CO – 105.86 µg/m³

NH₃ – 1.7 µg/m³

NO – 0 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Jonesboro

Severe Expected Likely

Extreme Heat Warning

Extreme Heat Warning issued August 12 at 4:06AM CDT until August 14 at 8:00PM CDT by NWS Memphis TN

Aug 12, 11:00 AM → Aug 14, 8:00 PM

WHAT: Dangerously hot conditions with heat index values up to 112
expected.

WHERE: Portions of East Arkansas, North Mississippi, and Southeast
Missouri.

WHEN: From 11 AM this morning to 8 PM CDT Friday.

IMPACTS: Heat related illnesses increase significantly during
extreme heat and high humidity events.

+ Read More

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

Updated: Aug 12, 6:03 AM Source: NWS Alert

Moderate Expected Likely

Heat Advisory

Heat Advisory issued August 11 at 8:08PM CDT until August 14 at 8:00PM CDT by NWS Memphis TN