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 timePlan general outdoor time around the full outing, changing conditions, and the checks that matter for this activity.3 min read MovementHow to choose a good time for walkingPlan walking around the full outing, changing conditions, and the checks that matter for this activity.3 min read MovementHow to choose a good time for runningPlan running around the full outing, changing conditions, and the checks that matter for this activity.3 min read MovementHow to choose a good time for cyclingPlan cycling around the full outing, changing conditions, and the checks that matter for this activity.3 min read MovementHow to choose a good time for hikingPlan hiking around the full outing, changing conditions, and the checks that matter for this activity.3 min read Everyday planningHow to choose a good time for yard work and outdoor workPlan yard work and outdoor work around the full outing, changing conditions, and the checks that matter for this activity.3 min read Everyday planningHow to choose a good time for field and team sportsPlan field and team sports around the full outing, changing conditions, and the checks that matter for this activity.3 min read Everyday planningHow to choose a good time for family outdoor timePlan family outdoor time around the full outing, changing conditions, and the checks that matter for this activity.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