You know, sometimes San Diego just tries to trick you with those "Mainly Clear" skies. Don't fall for it today – it's still a dangerously hot mess out there with some questionable air.
- You're still looking at a scorching 33°C (91.4°F) out there. Even if yesterday's "Extreme Heat Warning" is technically over, heat-related illness is a real threat, especially for inland runners. Stick to the coast if you absolutely must be outside, or better yet, stay home.
- The air quality is moderate at an AQI of 67, but the dominant pollutant is PM2.5. This, combined with the uncontained Dehesa 6 Fire reported just a couple of days ago in San Diego County, means you could be sucking in fine particulate matter with every breath, even if the smoke isn't thick where you are.
- Forget a smooth run through Mission Trails Regional Park. Major sewer pipeline construction has shut down the left turn from Mission Gorge Road onto Father Junipero Serra Trail all summer, and that's just one of the ongoing disruptions. Expect detours and frustrated drivers.
Weather & Air Quality Breakdown
Seriously, It's Still Too Damn Hot.
Look, the official "Extreme Heat Warning" for the deserts and "Heat Advisory" for inland valleys might have expired yesterday evening, but 33°C (91.4°F) isn't suddenly a walk in the park. The forecast is still for hot and humid conditions, especially further away from the immediate coast. Unless you're swimming in the ocean, plan your workout for another day or indoors. Heatstroke isn't a badge of honor.
The AQI sits at a moderate 67 with PM2.5 as the main culprit. That's fine particulate matter, folks. With a new wildfire, the Dehesa 6 Fire, reported in San Diego County as recently as July 9th and no containment details available, that PM2.5 could easily be from lingering or spreading smoke. Even if you can't see or smell it, those tiny particles are still irritating your lungs.
Wildfire Watch: Dehesa 6 Fire
A new fire was reported in San Diego County on July 9th, burning on federal land. While the Pipeline Fire from earlier in the week is 100% contained, this new one is not. Keep an eye on local news for updates and be mindful of any unusual haze or smoky smells, especially if you're out near the East County.
Pollen Report
| Pollen Type | Level |
|---|---|
| Overall | Moderate |
Moderate pollen isn't ideal when your lungs are already doing overtime with the heat and potential smoke. If you're sensitive, expect some sniffles and sneezes to go along with your sweat.
Local Trail & Road Impact
Mission Trails Construction Continues
Planning on hitting Mission Trails Regional Park? Think again. The left turn from Mission Gorge Road onto Father Junipero Serra Trail near the Visitor Center is completely closed through the summer due to sewer pipeline construction. You'll need to detour via Golfcrest Drive. Expect heavier traffic and don't try to get cute with your navigation. This project is a big one and will be ongoing.
There's also "Ruckapalooza" happening today, which means people will be rucking along the coast and streets, with a start point at Mission Beach Park. Additionally, the Over the Line World Championships are kicking off, drawing crowds to the beach. If you're planning a beach run or a workout near these areas, be prepared for extra congestion and crowds.
Data grounded with iAlert, KESQ, YouTube, Sacramento Bee, San Diego County Parks and Recreation, and San Diego Events from July 9-11, 2026.