Heat Advisory in Effect for Rogue Valley as Highs Near 100
Medford, Grants Pass, Ashland and nearby west-side valleys are expected to see the hottest weather Monday and Tuesday before a late-week cooldown.
MEDFORD, Ore. — A Heat Advisory is in effect from 11 a.m. Monday through 11 p.m. Tuesday for the Rogue Valley, Illinois Valley, Applegate Valley and other low-lying areas west of the Cascades as hot afternoon temperatures return to southwest Oregon and parts of Northern California.
The National Weather Service in Medford says daytime highs of 95 to 100 degrees are expected, with overnight lows around 57 to 59 degrees in many advisory areas. The advisory includes Jackson County, Josephine County, eastern Curry County and portions of Siskiyou County.
The Heat Advisory covers many of the west-side valleys where Monday and Tuesday temperatures are expected to climb into the mid-90s to near 100. (NWS Medford)
Communities listed in the advisory include Medford, Ashland, Grants Pass, Rogue River, Jacksonville, Gold Hill, Shady Cove, Applegate, Merlin, Wilderville, Cave Junction, Yreka, Weed, Mount Shasta, Dunsmuir, Happy Camp, Klamath River and surrounding valley locations.
In the Rogue Valley, Medford is forecast to reach about 98 degrees Monday and 96 on Tuesday. Grants Pass is expected to climb to about 96 Monday and 95 Tuesday, while Ashland is forecast near 94 Monday and 92 Tuesday.
The heat risk is considered elevated to moderate. At these levels, heat illness may occur for people who are more sensitive to heat, especially those without reliable access to cooling, shade or hydration. Outdoor workers, older adults, young children, people with health conditions and pets may need extra care during the hottest part of the day.
Overnight temperatures will offer only limited relief in some areas. Medford is forecast to fall to around 60 degrees Monday night, while Grants Pass and Ashland are expected to remain in the mid-to-upper 50s.
Temperatures are expected to ease gradually after Tuesday, though much of the region will remain above normal through the middle of the week. Medford is forecast near 93 on Wednesday and 90 on Thursday. Grants Pass is expected near 92 Wednesday and 89 Thursday, while Ashland is forecast near 89 Wednesday and 86 Thursday.
NWS Medford expects the hottest conditions Monday and Tuesday before temperatures ease later in the week, with rain chances possible by Friday. (NWS Medford)
Klamath Falls is not included in this Heat Advisory, but the east side will still be warm, with sunny conditions and highs near 89 Monday, 87 Tuesday and the mid-80s Wednesday and Thursday.
In Northern California, Yreka is forecast to reach about 95 Monday and 93 Tuesday. A slight chance of thunderstorms is possible around Yreka Tuesday afternoon and evening before drier and slightly cooler conditions return later in the week.
A more noticeable cooldown is possible by Friday as an upper low is forecast to bring cooler temperatures and a chance of rain to parts of the region.
NWS Medford recommends drinking plenty of fluids, staying in air-conditioned spaces when possible, staying out of direct sun during the hottest part of the day and checking on relatives and neighbors.
People who need to be outside should wear lightweight, loose-fitting clothing and try to limit strenuous activity to the early morning or evening. Heat exhaustion and heat stroke can develop quickly, especially during the first hotter stretches of summer.
Orange-shaded areas on the National Weather Service Weather Hazards map show where the Heat Advisory is in effect Monday and Tuesday, including the Rogue, Illinois, Applegate, Shasta, Scott and Klamath River valleys. See the latest map at https://www.weather.gov/wrh/hazards?wfo=mfr
Weather Messages & Alerts
Heat Advisory
URGENT - WEATHER MESSAGE
National Weather Service Medford OR
1202 AM PDT Mon Jun 22 2026
CAZ080>082-ORZ024-026-222100- /O.CON.KMFR.HT.Y.0003.260622T1800Z-260624T0600Z/
Western Siskiyou County-Central Siskiyou County-South Central Siskiyou County-Eastern Curry County and Josephine County-Jackson County
Including the following locations...Scott Bar, Happy Camp, Greenview, Callahan, Klamath River, Merlin, Wilderville, Grants Pass, Rogue River, Ashland, Butte Falls, McCloud, Shady Cove, Weed, Medford, Yreka, Dunsmuir, Applegate, Etna, Fort Jones, Hilt, Jacksonville, Gold Hill, Mount Shasta, Somes Bar, and Cave Junction
1202 AM PDT Mon Jun 22 2026
HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 11 PM PDT TUESDAY
WHAT: Daytime highs of 95 to 100 are expected, with overnight lows around 57 to 59 degrees. Elevated/moderate heat risk.
WHERE: Valleys and low-lying areas west of the Cascades. This includes communities in the Illinois, Rogue, Shasta, Scott, and Klamath River valleys as well as exposed areas in the western Cascades foothills, in eastern Curry County, and south of Mount Shasta.
WHEN: From 11 AM this morning to 11 PM PDT Tuesday.
IMPACTS: Heat illness may occur for those who are sensitive to heat, especially those without access to cooling facilities or hydration.
ADDITIONAL DETAILS: Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
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. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.
Cover image: A Heat Advisory is in effect Monday and Tuesday as west-side valleys across southwest Oregon and parts of Northern California prepare for afternoon highs in the mid-90s to near 100. (Stock photo: Magnific.)
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