Official NWS weather forecasts for any US location: 7-day daily forecasts, 156-hour hourly forecasts, raw grid data, and meteorologist forecast discussions from 122 Weather Forecast Offices.

Aviation weather data worldwide: METARs (current airport conditions), TAFs (24-hour airport forecasts), PIREPs (pilot reports of turbulence and icing), and SIGMETs/AIRMETs (significant aviation hazards) from the Aviation Weather Center.