Lexington Weather

Lexington, Massachusetts, USA

73°F
5/27/2026 11:19pm 
  • Lexington Conditions: Overcast
  • Temperature: 73.0°F / 22.8°CColder 0.9°F than last hour.
  • Dew Point: 53.2°FDecreased 1.5°Fsince last hour.
  • Relative Humidity: 50%Decreased 1.0% since last hour.
  • Wind: Calm, 10-min avg: Calm, gust: 1 mph
  • Barometer: 29.68 in Steady
  • Visibility: 10 miles
  • Rain Today: 0.00 in
  •   

Air Quality Alert

Issued by the National Weather Service - Chicago, IL

    AIR QUALITY ALERT  

Lake, IL; Northern Cook, IL; Central Cook, IL; McHenry, IL; Kane, IL; DuPage, IL; Kendall, IL; Grundy, IL; Southern Cook, IL; Northern Will, IL; Southern Will, IL; Eastern Will, IL

Air Quality Alert issued May 26 at 11:16AM CDT by NWS Chicago IL

AIR QUALITY ALERT IN EFFECT NOW THROUGH WEDNESDAY NIGHT

Areas Affected: McHenry; Lake; Kane; DuPage; Kendall; Grundy; Northern Cook; Central Cook; Southern Cook; Northern Will; Southern Will; Eastern Will

Urgency: Unknown

Severity: Unknown

Certainty: Unknown

Alert Sent: Tuesday 11:16am CDT

Alert Effective: Tuesday 11:16am CDT

Alert Expires: Thursday 12:00am CDT

Event Onset: Tuesday 11:16am CDT

Issued by: NWS Chicago IL

Details: 
...AIR QUALITY ALERT IN EFFECT NOW THROUGH WEDNESDAY NIGHT...

The Illinois Environmental Protection Agency has determined that an
Air Pollution Action Day will be declared for the greater Chicago
Metropolitan Area through Wednesday Night.

A Chicago area Air Pollution Action Day is declared when weather
conditions are such that widespread ozone and or particulate levels
are expected to be at or above the Unhealthy for Sensitive Groups
category of the Air Quality Index for multiple days. Ozone is
expected to be the primary pollutant of concern.

Active children and adults, especially people with pulmonary or
respiratory disease such as asthma, should limit prolonged outdoor
activity.

Area residents are urged to reduce pollution levels. Air quality
forecasts, current air quality, and tips on how you can reduce your
emissions can be found at www.airnow.gov.

Media contact...Illinois EPA.

Meta data: 
ID: urn:oid:2.49.0.1.840.0.dbd1e583a9b863b10962f5f2c56ef79d80b0647a.001.1
Codes: ILZ005, ILZ006, ILZ012, ILZ013, ILZ020, ILZ021, ILZ103, ILZ104, ILZ105, ILZ106, ILZ107, ILZ108
Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.dbd1e583a9b863b10962f5f2c56ef79d80b0647a.001.1