Friday, April 17, 2026 · Hour-by-hour forecast updated 9:11 AM EDT
57°F and overcast at peak. Wind 7 mph from the E, dew point 53°F.
Running Forecast texts you tomorrow's hour-by-hour forecast every evening so you know exactly what to expect before your alarm goes off.
Based on today's FitScore analysis, the best time to run is 5 AM–10 AM with a peak FitScore of 94/100. Check the hourly breakdown above for detailed conditions throughout the day.
The best months for running in Philadelphia are April, May, October, November. The most challenging months are typically July, August. Schuylkill River Trail is exposed — early morning runs avoid both heat and crowds.
FitScore rates each hour from 0–100 for outdoor exercise based on temperature, humidity, dew point, wind, precipitation probability, UV index, and air quality. Higher scores mean better conditions.