Ever ask yourself, "When Should I Run?" WSIR takes the guesswork out of choosing your run time.
Some of us like to run in the morning, some of us are afternoon runners. Simply set your preferred running window (or two), and WSIR does the rest—analyzing local weather conditions hour by hour to highlight your Best Windows for performance and safety.
Built in collaboration with meteorologists who are also passionate runners, WSIR uses proven thresholds for temperature, humidity, dew point, and UV index.
Running is tough enough as it is, you do not need the weather impacting you as well. 
WSIR helps you achieve optimum results by helping you choose the best running times.