Today | Weather | Tuesday, July 21, 2026
Active Weather Warnings

Weather in Little Rock, Arkansas

04:00 AM
Now
Night
79° F
Feels Like 88°
Precipitation 0 %
Wind 6 mph
Humidity 89 %
Today
Sunny with a Chance of Thunderstorms
Day 102°
Night 79°
Precipitation 55 %
Wind 7 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.

Little Rock Weather Forecast Updated

29 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (July 21, 2025)
Night

Day

99°

Night

75°

Wind

6 mph

Precipitation

2 %

Air Quality in Little Rock

NOW
13 AQI
Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 3.08 µg/m³
PM10 6.45 µg/m³
O3 0.008 ppm
NO2 2.1 ppb
SO2 0.1 ppb
CO 0.08 ppm
NH3 8.68 µg/m³
NO 0 µg/m³
PM2.5 – 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)
PM2.53.08 µg/m³
PM106.45 µg/m³
O315.66 µg/m³
NO23.91 µg/m³
SO20.21 µg/m³
CO91.8 µg/m³
NH38.68 µg/m³
NO0 µg/m³

Weather Alerts and Warnings for Little Rock

Severe Expected Likely

Extreme Heat Warning

Extreme Heat Warning issued July 20 at 11:51PM CDT until July 21 at 9:00PM CDT by NWS Little Rock AR
Jul 20, 11:51 PM Jul 21, 9:00 PM
WHAT: Dangerously hot conditions with heat index values up to 115.

WHERE: Portions of central, eastern, north central, southeast,
and western Arkansas.

WHEN: Until 9 PM CDT Tuesday.

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. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. 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. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
Updated: Jul 21, 3:30 AM Source: NWS Alert