Tuesday, July 21, 2026 · Hour-by-hour forecast updated 9:26 AM EDT
68°F and mostly sunny at peak. Wind 8 mph from the NW, dew point 64°F.
FitCast 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 9 AM with a peak FitScore of 72/100. Check the hourly breakdown above for detailed conditions throughout the day.
The best months for running in Pittsburgh are April, May, September, October. The most challenging months are typically January, February. Humidity builds in July–August. Early morning runs beat the heat and afternoon thunderstorms.
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.