Tuesday, July 21, 2026 · Hour-by-hour forecast updated 8:24 AM CDT
77°F and mostly sunny at peak. Wind 3 mph from the SW, dew point 74°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 8 AM with a peak FitScore of 48/100. Check the hourly breakdown above for detailed conditions throughout the day.
The best months for running in Austin are March, April, October, November. The most challenging months are typically July, August. Lady Bird Lake trail is partially shaded but still brutal by 9 AM. Cedar season (Dec–Feb) hits allergies hard.
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.