Outdoor planning guides

Understand the conditions. Then choose your moment.

11 focused, source-backed guides for making sense of weather, air quality, smoke, and forecast uncertainty—without turning a forecast into a safety guarantee.

Browse the library

Evergreen planning guidance · Current conditions live elsewhere

The field library

Start with what you’re planning.

Short enough to scan before heading out, detailed enough to explain what each signal can—and cannot—tell you.

Everyday planningHow to choose a good time for general outdoor timeA practical guide to weighing weather, air quality, smoke, daylight, and hazards before general outdoor time.3 min read MovementHow to choose a good time for walkingA practical guide to weighing weather, air quality, smoke, daylight, and hazards before walking.3 min read MovementHow to choose a good time for runningA practical guide to weighing weather, air quality, smoke, daylight, and hazards before running.3 min read MovementHow to choose a good time for cyclingA practical guide to weighing weather, air quality, smoke, daylight, and hazards before cycling.3 min read MovementHow to choose a good time for hikingA practical guide to weighing weather, air quality, smoke, daylight, and hazards before hiking.3 min read Everyday planningHow to choose a good time for yard work and outdoor workA practical guide to weighing weather, air quality, smoke, daylight, and hazards before yard work and outdoor work.3 min read Everyday planningHow to choose a good time for field and team sportsA practical guide to weighing weather, air quality, smoke, daylight, and hazards before field and team sports.3 min read Everyday planningHow to choose a good time for family outdoor timeA practical guide to weighing weather, air quality, smoke, daylight, and hazards before family outdoor time.3 min read Air + smokeHow to read air quality before going outsideWhat the US AQI means, why the leading pollutant matters, and how activity and duration change the decision.3 min read Air + smokeHow to understand a wildfire smoke outlookKeep smoke overhead, modeled transport, active fires, and breathing-level air quality in their proper roles.3 min read Forecast literacyWhy the extended outlook is differentWhat forecast confidence means and why later days do not receive a complete Nature Says When verdict.3 min read