Thursday, June 4, 2026 · Hour-by-hour forecast updated 3:49 AM PDT
57°F and overcast at peak. Wind 4 mph from the SW, dew point 49°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 All day with a peak FitScore of 100/100. Check the hourly breakdown above for detailed conditions throughout the day.
The best months for running in Seattle are June, July, August, September. The most challenging months are typically November, December, January. Seattle summers are world-class running weather — dry, 65–75°F, long daylight.
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.