| Ace's Pilot Shop Weather Data | | Aviation weather and flight planning, including forecasts, observations, weather maps, DUATS briefings, icing, and turbulence. |
| Aviation Digital Data Service (ADDS) | | Comprehensive user-friendly aviation weather graphics including icing, turbulence, and convection. Also includes a "Flight Path Tool" for pilots. |
| Aviation Weather Center | | The National Weather Service's aviation weather site with official forecast products as well as experimental products. |
| Base Ops | | Aviation Weather for Flight Preparation with TAF Metar Sigmet Radar and Sat-pictures. |
| Data Transformation Corp DUAT | | FAA's Direct User Access Terminal service provides free aviation weather and flight planning for certified pilots in the US. |
| Enflight | | Obtain plain-language weather briefings using exclusive WXpert translation. View up-to-date weather graphics. Helps prepare and file flight plans. Available both on the Web and on mobile PDAs (Palm i705, etc.) |
| Flying in Europe | | Weather information for flying in Europe, including all airport notams, calculations, country information, airport webcams, FBO database, and all aviation abbreviations. |
| Northwest Airlines Meteorology | | Providing weather forecasting products for the aviation industry, including specialized turbulence and thunderstorm forecasts. |
| Pilot Weather Briefing | | Free weather information for pilots, including surface conditions, upper level winds, turbulence, icing, thunderstorms, TAFs and Metars, radar and satellite images. |
| SA Weather Service - Aviation | | Provides weather services for the aviation industry in Southern Africa. Includes metars, sigmet charts and forecasts. |
| Upper Midwest Aviation Weather | | Central reference for aviation weather resources, focusing on current and forecast conditions in the upper midwest region of the US, including Minnesota, Wisconsin, South Dakota, North Dakota, and Iowa. |
| Winds and Temperatures Aloft | | By selecting one of over 160 continental cities in the U.S.A. or one of 30 cities in Alaska, you can obtain wind direction, speed, and temperature forecasts. |
| WSI | | Provides pre-flight and in-flight weather information. Aviation weather also available online through WSI Pilotbrief. |
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