Monday, October 19, 2026 · Hour-by-hour forecast updated 12:15 AM PDT
62°F and clear at peak. Wind 3 mph from the E, dew point 31°F.
April and May are the best running months in Santa Clarita, scoring 96 and 96 on the FitScore scale with mornings near 51°F and afternoon highs around 75°F. There is no truly bad month here — even July, the weakest, averages a FitScore of 83. Across the full year, Santa Clarita ranks #24 of 200 U.S. running cities, with an annual FitScore of 91 (national median: 74). Conditions stay runnable nearly year-round, with 12 months scoring 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–11 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 Santa Clarita are April, May, and November, with average FitScores of 96, 96, and 96 based on a decade of daily weather history. The most challenging is July (FitScore 83).
Historically, October in Santa Clarita averages a FitScore of 95/100 — excellent running weather — with highs around 82°F, lows around 58°F, dew points near 40°F, and 1 days of measurable rain. That's above 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.