Monday, October 19, 2026 · Hour-by-hour forecast updated 2:12 AM CDT
61°F and clear at peak. Wind 6 mph from the SE, dew point 46°F.
November and December are the best running months in Irving, scoring 86 and 84 on the FitScore scale with mornings near 50°F and afternoon highs around 67°F. July is the toughest month: sticky dew points averaging 69°F alongside highs of 95°F drag the average FitScore down to 48 — plan on pre-dawn starts. Across the full year, Irving ranks #149 of 200 U.S. running cities, with an annual FitScore of 71 (national median: 74). 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 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 Irving are November, December, and March, with average FitScores of 86, 84, and 83 based on a decade of daily weather history. The most challenging is July (FitScore 48).
Historically, October in Irving averages a FitScore of 81/100 — excellent running weather — with highs around 79°F, lows around 61°F, dew points near 54°F, and 6.5 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.