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Mercer Island, WA

-8°C

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Mercer Island, WA Weather

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Today

WinterCast Hourly Daily Radar MinuteCast Monthly Air Quality Health & Activities

Current Weather

12:37 AM

RealFeel® -6°

Air Quality Fair

Wind Gusts 5 km/h

Clear More Details

WinterCast

Tuesday Afternoon

A cm or two

Snow

Current Air Quality

Saturday

1/13

45

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
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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 low.

The risk of mold allergy symptoms is low.

The risk of grass pollen symptoms is low.

The risk of dust and dander symptoms is extremely high. If you suffer from dust and dander allergies, taking allergy medication can help relieve symptoms.

The risk of experiencing weather-related arthritis pain is high. Focus on low-impact aerobic exercises.

The risk of weather-related sinus pressure is high. Taking a hot shower may help ease sinus pressure.

The risk of catching a cold is moderate.

The risk of catching the flu is moderate.

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

The risk of asthma symptoms is low.

Fishing conditions are poor.

Conditions for running are poor. Lightening and extremely cold temperatures are unsafe for outdoor runners.

Conditions for golfing are poor. Do not play if there is a chance of lightning.

Biking & Cycling

Conditions for cycling are poor. Avoid outdoor activity if there is a chance of lightning or in extremely cold temperatures.

Conditions for a day at the beach or pool are poor. Stay out of the water if there is a chance of lightning. Only swim in water temperatures below 55 degrees if you have the proper gear.

Conditions for stargazing are poor.

Conditions for hiking are poor.

Conditions for lawn mowing are poor. Avoid mowing your lawn when it is wet, or temperatures are too cold.

Composting conditions are poor. Keep your compost area covered.

Outdoor Entertaining

Conditions for outdoor entertaining will be poor. Consider moving your party indoors or under some form of cover.

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 low.

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 low.

TODAY’S WEATHER FORECAST

Cold with clouds and sun

TONIGHT’S WEATHER FORECAST

RealFeel® -9°

Partly cloudy and quite cold

TOMORROW’S WEATHER FORECAST

Chilly with periods of sun

Looking Ahead

Snow late Tuesday afternoon will accumulate a cm or two before changing to rain

Snowfall Probability

Snow expected Wednesday - see amounts

Mercer Island Weather Radar

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Mercer Island Weather Radar

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

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