Monday, October 19, 2026 · Hour-by-hour forecast updated 12:14 AM PDT
58°F and overcast at peak. Wind 4 mph from the SW, dew point 46°F.
May and June are the best running months in Bellevue, scoring 91 and 90 on the FitScore scale with mornings near 48°F and afternoon highs around 65°F. December averages 16.6 days of measurable rain — the wettest stretch of the year — holding its FitScore to 66. Across the full year, Bellevue ranks #70 of 200 U.S. running cities, with an annual FitScore of 81 (national median: 74). Conditions stay runnable nearly year-round, with 11 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 All day with a peak FitScore of 99/100. Check the hourly breakdown above for detailed conditions throughout the day.
The best months for running in Bellevue are May, June, and July, with average FitScores of 91, 90, and 88 based on a decade of daily weather history. The most challenging is December (FitScore 66).
Historically, October in Bellevue averages a FitScore of 87/100 — excellent running weather — with highs around 60°F, lows around 46°F, dew points near 47°F, and 13 days of measurable rain. That's about even with 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.