Monday, October 19, 2026 · Hour-by-hour forecast updated 2:15 AM CDT
63°F and overcast at peak. Wind 6 mph from the N, dew point 54°F.
January and February are the best running months in Brownsville, scoring 80 and 76 on the FitScore scale with mornings near 56°F and afternoon highs around 71°F. August is the toughest month: oppressive dew points averaging 75°F alongside highs of 93°F drag the average FitScore down to 39 — plan on pre-dawn starts. Year-round, this is one of the tougher running climates in the country — #192 of 200 (annual FitScore 59 vs. the 74 national median), which makes timing the good windows matter more. 4 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–9 AM with a peak FitScore of 93/100. Check the hourly breakdown above for detailed conditions throughout the day.
The best months for running in Brownsville are January, February, and December, with average FitScores of 80, 76, and 76 based on a decade of daily weather history. The most challenging is August (FitScore 39).
Historically, October in Brownsville averages a FitScore of 58/100 — fair running weather — with highs around 85°F, lows around 71°F, dew points near 67°F, and 6 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.