Extreme Heat Warning Issued for Medford Metro and Surrounding Counties

Medford, Oregon- A dangerous stretch of hot weather is expected to grip parts of southern Oregon and northern California this weekend, with the National Weather Service in Medford issuing an extreme heat warning from 2 p.m. Saturday through 8 p.m. Tuesday.

The warning includes Jackson, Josephine, and eastern Curry counties in Oregon, as well as central and western Siskiyou County in California. Cities in the affected area include Medford, Ashland, Grants Pass, Cave Junction, Happy Camp, Fort Jones, and Yreka.

High temperatures during the warning period are forecast to range from 100 to 105 degrees, with some valley locations in western Siskiyou County potentially reaching up to 110 degrees. Overnight lows will remain warm, mainly in the mid to upper 60s.

The prolonged heat is expected to significantly increase the risk of heat-related illnesses, particularly for vulnerable groups such as young children, older adults, outdoor workers, and people without access to cooling.

Officials urge residents to drink plenty of fluids, stay in air-conditioned spaces, avoid prolonged sun exposure, and check on relatives and neighbors. People are also advised to implement any pre-planned safety measures to minimize risk during this extreme heat event.

Heat-related illnesses pose a serious health risk during prolonged periods of extreme temperatures, particularly when combined with high humidity. These conditions range in severity from mild to life-threatening.

Heat cramps—painful muscle spasms often linked to physical exertion and dehydration—are typically an early warning sign. More serious is heat exhaustion, which can cause heavy sweating, weakness, nausea, dizziness, and fainting. If not addressed promptly, heat exhaustion can progress to heat stroke, a medical emergency characterized by a body temperature exceeding 103 degrees Fahrenheit, confusion, and possible loss of consciousness.

Health officials advise residents to take proactive steps to reduce the risk of heat-related illness, especially during periods of excessive heat warnings. Recommended precautions include staying hydrated, limiting outdoor activity during the hottest parts of the day, and seeking out air-conditioned environments.

Individuals at higher risk—such as older adults, young children, people with chronic health conditions, and those working outdoors—should be monitored closely. Authorities also warn against leaving children or pets unattended in vehicles, as interior temperatures can rise rapidly to fatal levels. Early recognition and treatment are critical to preventing serious outcomes.

Forecasters note that the heat wave could extend into Wednesday, prolonging hazardous conditions.