Friday, April 17, 2026 · Hour-by-hour forecast updated 4:46 AM PDT
55°F and overcast at peak. Wind 6 mph from the NNE, dew point 43°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 All day with a peak FitScore of 97/100. Check the hourly breakdown above for detailed conditions throughout the day.
The best months for running in Portland are June, July, August, September. The most challenging months are typically November, December, January. Forest Park trails stay cool even on warm days. Rain is light drizzle — most locals run through it.
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.