Alright, get out there before the weekend chaos, but don't get too comfortable.
- Enjoy the clear skies and comfortable temperatures today, but watch for rising humidity and cloud cover as the day progresses.
- Moderate pollen levels and conflicting air quality reports mean you might want to adjust your intensity, especially if you're sensitive.
- Major construction around the Schuylkill River Trail starts tonight, so plan your evening routes carefully or risk a serious detour.
Look, today's your last chance for a truly "pleasant" outdoor workout for a minute, so take advantage of it. We're looking at clear skies this morning and temps warming up from a cool 13°C (55°F) into the low-to-mid 70s F (21-24°C) by this afternoon. Winds are a breezy but manageable 10-15 mph from the WNW. It's basically prime fall running weather, but don't let that fool you into thinking it's totally clear sailing.
First off, your lungs might not be as thrilled as your legs. The AQI is sitting at a "Moderate" 55 with PM2.5 as the dominant pollutant. The City of Philadelphia categorizes this as acceptable, but some forecasts are throwing around "unhealthy for sensitive groups". So, if you usually feel it when the air isn't sparkling, maybe dial back that sprint workout or stick to less trafficked areas. And speaking of stuff floating in the air, pollen is at a "Moderate" level overall, with ragweed specifically noted as "High" yesterday. So, if you're a sniffler, load up on the meds before you head out.
| Pollen Type | Level |
|---|---|
| Overall | Moderate |
| Ragweed | High |
Schuylkill Trail Construction Alert (Starting Tonight!)
Listen up, Schuylkill River Trail regulars: PennDOT is shutting down major sections of I-76 (the Schuylkill Expressway) near the Market Street Bridge starting tonight at 9 PM. This closure runs through 5 AM Monday, October 12, and is for the ongoing $148.9 million Market Street Bridge rehabilitation project, which directly impacts the trail underneath. If you usually run, walk, or bike through Center City along the river in the evening or this weekend, expect significant detours and potential hazards. Don't be "that guy" trying to squeeze through a construction zone. Find an alternate route or move your long run to a different part of the city.
Prepare for a Wet Sunday
Don't get used to this nice weather. The remnants of Hurricane Isaias are heading our way, bringing widespread rain and potentially gusty winds on Sunday. We're talking 1 to 2 inches of rain in some spots, with winds up to 30 mph, possibly higher in heavier bands. Enjoy today and Saturday, because Sunday looks like a treadmill day unless you enjoy running through a tropical downpour.
Finally, if you're up in Northeast Philly, remember the I-95 reconstruction at the Bridge Street Interchange is still a thing. Tacony Street has lane reductions and there's an "extensive pedestrian detour" in that area through 2027. Another reason to stay aware of your surroundings, even on familiar routes.
Data grounded with CBS News Philadelphia from October 09, 2026.