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Updated:August 1, 2026 5:15 pm PDT

Heat Advisory HEAT ADVISORY  
Merced County

Effective: Sat, 8/1 1:58pm Severity:  Moderate 
Updated: August 1, 2026 5:15 pm Urgency: Expected
Expires: Sat, 8/1 10:00pm Certainty: Likely

Areas Affected: Los Banos - Dos Palos - Merced - Madera - Mendota - Planada - Le Grand - Snelling - Coalinga - Avenal - West Side of Fresno and Kings Counties - Caruthers - San Joaquin - Selma - Fresno-Clovis - West Side Mountains South of 198 - Buttonwillow - Lost Hills - I5 - Delano-Wasco-Shafter - Hanford - Corcoran - Lemoore - Visalia - Porterville - Reedley - Buena Vista - Bakersfield - Southeast San Joaquin Valley - South End San Joaquin Valley - Mariposa Madera Foothills - Fresno-Tulare Foothills - South End Sierra Foothills - Kern River Valley - Tehachapi - Grapevine - Frazier Mountain Communities
 
Alert Details:
* WHAT...Afternoon high temperatures up to 107 degrees expected. Heat
Risk will range from Moderate to Major.

* WHERE...San Joaquin Valley and adjacent foothills, as well as Lake
Isabella and the Kern River Valley.

* WHEN...Until 11 PM PDT Monday.

* IMPACTS...Hot temperatures and limited overnight relief may cause
heat illnesses.

* ADDITIONAL DETAILS...Afternoon high temperatures up to 107 degrees
will occur from today into Monday. Overnight lows will range from
the upper 60s in some valley locations to the lower 80s in some of
the higher foothills.

Information:
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

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.