Terms and limitations · effective August 25, 2026

Use the answer as planning guidance.

Nature Says When is a free, English-language planning service for the 50 United States and Washington, DC. It combines forecast and environmental information but cannot guarantee future conditions, personal outcomes, or conditions at every point.

Official instructions come first

Follow emergency alerts, evacuation instructions, closures, event rules, workplace requirements, and directions from public authorities. The product is not an emergency-warning service.

No medical or specialized-activity advice

Recommendations are not medical advice and do not assess individual health, fitness, equipment, terrain, traffic, water, snow, wildlife, or other specialized risks.

Forecast limitations

Sources have different grids, reporting areas, update times, and forecast horizons. Extended-outlook periods do not receive an integrated verdict or ranking. Conditions can change after calculation. Recheck close to the activity and use your judgment at the location.

Availability and changes

The service may limit provider calls, show cached or durable context, disable a feature, or withhold a recommendation when data, security, licensing, or budget gates are not satisfied. Features and sources may change as the methodology is versioned.