Heat Window: Heat Index

Choose a lower-heat time for your next run, walk, ride or outdoor chore. Heat Window compares the forecast across your whole outing, so you can see how different start times stack up. COMPARE THE WHOLE OUTING Choose a place, set a duration from 30 to 180 minutes, and compare possible starts in 15-minute steps. See peak and average forecast heat for each complete window. Similar options and missing data are clearly labeled. Comparisons use heat index where supported, with air temperature used consistently when heat index is unavailable. UNDERSTAND THE FORECAST Explore hourly heat index, air temperature, wet-bulb temperature, humidity, wind and rain where available. View Fahrenheit or Celsius and times in your destination's time zone. Search for a city, enter coordinates, or choose to use your current location. EXPLORE BEFORE SUBSCRIBING The offline sample is always available. Your free…