Lexington Weather

Lexington, Massachusetts, USA

67°F
7/28/2026 5:30am 
  • Lexington Conditions: Mostly cloudy
  • Temperature: 67.3°F / 19.6°CColder 0.3°F than last hour.
  • Dew Point: 64.9°F 
  • Relative Humidity: 92%Increased 1.0% since last hour.
  • Wind: Calm, 10-min avg: Calm, gust: 2 mph
  • Barometer: 29.70 in Steady
  • Visibility: 8 miles
  • Rain Today: 0.00 in
  •   

Watches, Warnings, and Advisories

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

    EXTREME HEAT WARNING  

Randolph, IL

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

EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 7 PM CDT TUESDAY

Areas Affected: Washington; Randolph; Crawford; Washington; St. Francois; Ste. Genevieve; Iron; Madison; Reynolds

Urgency: Expected

Severity: Severe

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 REMAINS IN EFFECT UNTIL 7 PM CDT TUESDAY...

* WHAT...Dangerously hot conditions with heat index values up to 106.

* WHERE...In Illinois, Washington IL and Randolph IL Counties. In
Missouri, Crawford MO, Washington MO, Iron MO, Madison MO, Reynolds
MO, Saint Francois MO, and Sainte Genevieve MO Counties.

* WHEN...Until 7 PM CDT Tuesday.

* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.

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.b1a3c4052d47f21af7d0e7d0ea67ad631de50001.003.1
Codes: ILZ074, ILZ079, MOZ072, MOZ073, MOZ074, MOZ075, MOZ084, MOZ085, MOZ099
Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.b1a3c4052d47f21af7d0e7d0ea67ad631de50001.003.1