Monday, October 19, 2026 · Hour-by-hour forecast updated 2:11 AM CDT
61°F and clear at peak. Wind 6 mph from the NE, dew point 45°F.
January and December are the best running months in Pasadena, scoring 83 and 81 on the FitScore scale with mornings near 46°F and afternoon highs around 62°F. July is the toughest month: oppressive dew points averaging 75°F alongside highs of 90°F drag the average FitScore down to 41 — plan on pre-dawn starts. Year-round, this is one of the tougher running climates in the country — #183 of 200 (annual FitScore 65 vs. the 74 national median), which makes timing the good windows matter more. 7 months of the year score 70 or better.
Based on 2015–2024 daily weather history (Open-Meteo ERA5), scored against 200 U.S. cities. Monthly FitScore reflects each day’s best running window.
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 5 AM–10 AM with a peak FitScore of 99/100. Check the hourly breakdown above for detailed conditions throughout the day.
The best months for running in Pasadena are January, December, and February, with average FitScores of 83, 81, and 79 based on a decade of daily weather history. The most challenging is July (FitScore 41).
Historically, October in Pasadena averages a FitScore of 70/100 — good running weather — with highs around 81°F, lows around 65°F, dew points near 62°F, and 6.9 days of measurable rain. That's below the national median of 86 for October.
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.