Heat Advisory from noon Saturday 7/18 to 7pm Tuesday 7/21

07/17/2026, 11:05 AM - 07/21/2026, 7:00 PM

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Overview

Type: Announcement

Description

The National Weather Service has issued a Heat Advisory from noon Saturday to 7 PM Tuesday.

Heat index values of 100 to 105 are expected. Hot temperatures and high humidity may cause heat illnesses.

Precautionary/Preparedness Actions

  • 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.

More Information

Website:
City of St. Louis Emergency Management Agency

Contacts and Location

Sponsor:
City Emergency Management Agency

Contact Name:
Vanden Berg, Kim

Email:
vandenbergk@stlouis-mo.gov

View details and materials on stlouis-mo.gov

History

Event published: Jul 17, 2026 4:47 PM

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