RouteWx app for iPhone and iPad

Plan your next road trip with confidence! RouteWx uses state-of-the-art numerical weather prediction data, to help you decide whether or not to take your roadtrip or not, up to 48 hours in advance. Your route will highlight in either green, yellow, or red to indicate predicted weather conditions. This includes temperature, precipitation intensity/type, and wind speeds. The forecast will sync with the time you will be travelling along a particular segment (forecasts are available every 2 miles). You can even overlay real-time weather radar data to show where its raining/snowing, get the latest National Weather Service watches and warnings, and live traffic from Google.