Webannapolis, united states naval academy (knak) lat: Local forecast office more local wx 3 day history hourly weather forecast. Sunny, nice and less humid. A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly cloudy, with a high near 86. West wind 5 to 7 mph. Chance of precipitation is 50%. A chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 67. Chance of precipitation is 30%.