Current Weather

2:56 PM

83°F

Mostly sunny More Details

Current Air Quality

Today

9/27

AQI

Fair

The air quality is generally acceptable for most individuals. However, sensitive groups may experience minor to moderate symptoms from long-term exposure.

Based on Current Pollutants
More Details
Learn more at

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

See all

Tree Pollen

Low

The risk of tree pollen symptoms is low.

Ragweed Pollen

Moderate

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

Mold

High

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

Grass Pollen

High

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

Dust & Dander

Low

The risk of dust and dander allergy symptoms is low.

Arthritis

Moderate

The risk of experiencing weather-related arthritis pain is moderate. Stay hydrated and stretch to help avoid arthritis symptoms.

Sinus Pressure

Low

The risk of weather-related sinus pressure is low.

Common Cold

Low

The risk of catching a cold is low.

Flu

Low

The risk of catching the flu is low.

Migraine

Low

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

Asthma

High

The risk of asthma symptoms is high. Be sure to use HEPA filters in your home to cut down on indoor asthma triggers.

Fishing

Great

Fishing conditions are great. Find an area with less boat or human activity to avoid areas where fish are hiding.

Running

Good

Conditions for running are good. Be sure to wear sunscreen and UV-protective activewear.

Golf

Great

Conditions for golfing are great. Stay hydrated when spending time in the sun.

Biking & Cycling

Great

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.

Beach & Pool

Ideal

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

Stargazing

Great

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

Hiking

Great

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

Lawn Mowing

Good

Conditions for lawn mowing are good. Alternating mowing patterns can help all areas of your lawn grow.

Composting

Great

Composting conditions are great. Ensure any food scraps are covered with dry leaves or wood chips to help avoid attracting pests.

Outdoor Entertaining

Ideal

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

Air Travel

Ideal

Conditions for flying are ideal. Have a safe trip.

Driving

Ideal

Conditions for driving are ideal.

Mosquitos

Extreme

The risk for mosquito activity are extremely high. Wear long-sleeved shirts and pants when spending time outdoors to prevent bites.

Indoor Pests

High

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

Outdoor Pests

Extreme

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

See all

TODAY’S WEATHER FORECAST

9/27

83°Hi

RealFeel® 91°

Sunshine and patchy clouds

TONIGHT’S WEATHER FORECAST

TOMORROW’S WEATHER FORECAST

St. Charles Weather Radar

See Interactive Map

Static Radar Temporarily Unavailable

Thank you for your patience as we work to get everything up and running again.

Refresh Page

See Interactive Map

St. Charles, MO

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel

Video

Podcasts

Winter Center

Today

Current Weather

Current Air Quality

Fair

The air quality is generally acceptable for most individuals. However, sensitive groups may experience minor to moderate symptoms from long-term exposure.

Based on Current Pollutants
More Details
Learn more at

Learn more at

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.

TODAY’S WEATHER FORECAST

TONIGHT’S WEATHER FORECAST

TOMORROW’S WEATHER FORECAST

St. Charles Weather Radar

Further Ahead

Hourly

Daily

Monthly

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Podcasts

Winter Center

Weather Near St. Charles:

St. Charles, MO

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel

Video

Podcasts

Winter Center

Today

Current Weather

Current Air Quality

Fair The air quality is generally acceptable for most individuals. However, sensitive groups may experience minor to moderate symptoms from long-term exposure. Based on Current Pollutants More Details Learn more at

Learn more at

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.

TODAY’S WEATHER FORECAST

TONIGHT’S WEATHER FORECAST

TOMORROW’S WEATHER FORECAST

St. Charles Weather Radar

Further Ahead

Hourly

Daily

Monthly

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Podcasts

Winter Center

Weather Near St. Charles:

Fair

The air quality is generally acceptable for most individuals. However, sensitive groups may experience minor to moderate symptoms from long-term exposure.

Based on Current Pollutants
More Details
Learn more at