Lexington Weather

Lexington, Massachusetts, USA

68°F
7/28/2026 6:21am 
  • Lexington Conditions: Mist, Overcast
  • Temperature: 67.5°F / 19.7°CWarmer 0.4°F than last hour.
  • Dew Point: 65.3°FIncreased 0.5°Fsince last hour.
  • Relative Humidity: 93%Increased 1.0% since last hour.
  • Wind: Calm, 10-min avg: Calm, gust: 2 mph
  • Barometer: 29.71 in Steady
  • Visibility: 3 miles
  • Rain Today: 0.00 in
  •   

Heat Advisory

Issued by the National Weather Service - St. Louis, MO

    HEAT ADVISORY  

Bond, IL; Clinton, IL; Marion, IL; Madison, IL

Heat Advisory issued July 27 at 9:10PM CDT until July 28 at 7:00PM CDT by NWS St Louis MO

EXTREME HEAT WARNING HAS EXPIRED... ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT TUESDAY

Areas Affected: Bond; Clinton; Marion; Madison; Boone; Moniteau; Cole; Osage; Callaway; Montgomery; Lincoln; Gasconade; Warren; St. Charles; Franklin; St. Louis; St. Louis City

Urgency: Expected

Severity: Moderate

Certainty: Likely

Alert Sent: Monday 9:10pm CDT

Alert Effective: Monday 9:10pm CDT

Alert Expires: Tuesday 12:15pm CDT (expect updated alert by this time)

Event Onset: Monday 9:10pm CDT

Event Ends: Tuesday 7:00pm CDT

Issued by: NWS St Louis MO

Details: 
...EXTREME HEAT WARNING HAS EXPIRED... ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT TUESDAY...

* WHAT...Heat index values up to 102.

* WHERE...Portions of south central and southwest Illinois and
central and east central Missouri.

* WHEN...Until 7 PM CDT Tuesday.

* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.

Information: 
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors. Young children and
pets should never be left unattended in vehicles under any
circumstances. Take extra precautions if you work or spend time
outside. When possible reschedule strenuous activities to early
morning or evening. Know the signs and symptoms of heat exhaustion
and heat stroke. Wear lightweight and loose fitting clothing when
possible. 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.

Meta data: 
ID: urn:oid:2.49.0.1.840.0.b1a3c4052d47f21af7d0e7d0ea67ad631de50001.001.2
Codes: ILZ064, ILZ069, ILZ070, ILZ100
Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.b1a3c4052d47f21af7d0e7d0ea67ad631de50001.001.2