Eugene, Oregon – Scorching July heat is set to grip the Willamette Valley again, with temperatures surging toward 98° in Eugene by Monday afternoon, putting health and safety on the line for drivers and residents. The return of triple-digit heat means everyone along I-5 and Hwy 99 needs to plan for hazardous travel conditions, dehydration risk, and possible power strain.
According to the National Weather Service, a Heat Advisory remains in effect from 11 a.m. to 10 p.m. Monday, July 14. Highs from 95° to 98° will blanket Eugene, Springfield, and surrounding towns, making outdoor activity potentially dangerous and prompting urgent safety calls from officials. Road crews and first responders warn of pavement buckling and engine overheating—especially along heavily traveled routes like I-5 and Hwy 99.
Residents are urged to limit non-essential travel, hydrate often, and seek out air-conditioned spaces. Vulnerable groups—including young children, seniors, and outdoor workers—should avoid midday sun and check on neighbors. Local cooling centers and splash pads in Eugene and Springfield are open for relief. If you must drive, carry extra water and check your vehicle’s coolant.
Northwest winds Monday afternoon will do little to cool things off, with sunny skies and only light breezes expected. Monday night brings slight relief, with lows dipping to 56°, but heat ramps up again Tuesday and Wednesday, with another high of 98° possible by midweek. Nights remain clear and warm, so homes without AC may struggle to cool down.
Stay alert: The heat threat could linger all week, with no major cooldown until at least Friday. Check for further NWS advisories, especially if wildfire smoke impacts the area.
Five-Day Forecast: Eugene, OR
Monday [7/14]: Sunny, high 98°. Light northwest wind 6–11 mph.
Monday Night: Clear, low 56°. North wind 5–10 mph.
Tuesday [7/15]: Sunny, high 98°. North wind 5–9 mph.
Tuesday Night: Clear, low 61°.
Wednesday [7/16]: Sunny, high 98°.
Wednesday Night: Clear, low 56°.
Thursday [7/17]: Mostly clear, high 93°, low 56°.
Friday [7/18]: Sunny, high near 91°, low around 56°.
What’s Ahead:
Extreme heat persists through Wednesday, with only a slight drop in highs late week. Stay weather-aware and ready for additional advisories as the weekend nears.