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Chesterfield, MO Weather

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Current Weather

11:22 AM

RealFeel® 94°

RealFeel Shade™ 89°

Air Quality Poor

Wind Gusts 2 mph

Sunny More Details

Current Air Quality

Today

9/30

54

AQI

Poor

The air has reached a high level of pollution and is unhealthy for sensitive groups. Reduce time spent outside if you are feeling symptoms such as difficulty breathing or throat irritation.

Based on Current Pollutants
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Current Air Quality

Our current air quality index (AQI) provides information on the quality of air that you are breathing and its impact on your health. There are at least six different pollutants that we track that impact the cleanliness of air and your health.

Health & Activities

The risk of tree pollen symptoms is low.

The risk for ragweed pollen symptoms is moderate. Avoid walking in areas with tall grass or plants.

The risk of mold allergy symptoms is high. Remove your shoes as soon as you return inside.

The risk of grass pollen symptoms is high. Limit your time outdoors in the early morning and mid-afternoon hours.

The risk of dust and dander allergy symptoms is high. Be sure you're vacuuming with a HEPA-approved filter.

The risk of experiencing weather-related arthritis pain is low.

The risk of weather-related sinus pressure is low.

The risk of catching a cold is low.

The risk of catching the flu is low.

The risk of suffering from a weather-related migraine is moderate.

The risk of asthma symptoms is low.

Fishing conditions are ideal. Wear sunscreen and a hat if you'll be in the sun.

Conditions for running are great. Be sure to warm up and cool down adequately.

Conditions for golfing are ideal.

Biking & Cycling

Conditions for cycling are great. Be sure you have the correct gear to keep your core temperature warm during winter months and cool during hot weather.

Conditions for a day at the beach or pool are ideal. Wear sunscreen and UV-protective clothing when spending time outdoors.

Conditions for stargazing are great. Invest in a red flashlight. It can help prevent additional light pollution.

Conditions for hiking are great. Wear sunscreen and UV-protective clothing.

Conditions for lawn mowing are great. Ensure you are servicing your mower frequently to keep the blades sharp.

Composting conditions are good. Make sure you frequently add water to your compost to keep it moist.

Outdoor Entertaining

Conditions for outdoor entertaining will be ideal. Be sure to wear sunscreen when spending time outdoors.

Conditions for flying are ideal. Have a safe trip.

Conditions for driving are great. Remain prepared for changing weather by tracking ongoing forecasts.

The risk for mosquito activity are high. Consider an EPA-registered repellent to deter mosquito bites.

The risk for pest activity is high. Replacing outdoor lights with yellow bug lights can attract less insects near your home.

The risk for pest activity is extremely high. Eliminate standing water in rain gutters, buckets, and in tires where pests can breed.

TODAY’S WEATHER FORECAST

RealFeel® 96°

Hot with plenty of sunshine

TONIGHT’S WEATHER FORECAST

RealFeel® 57°

TOMORROW’S WEATHER FORECAST

RealFeel® 89°

Very warm with plenty of sun

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