 The forecast from WTOP meteorologist Mike Sinifer. A severe thunderstorm watched until 11 o'clock tonight throughout the area. The severe thunderstorm warning for parts of Anne Arundel and Prince George's County set to expire in just a couple of minutes. Tonight, thunderstorms should be ending in the evening, getting very chilly, low 60 to 65. Tomorrow, sunshine, less humidity, high temperatures in the upper 70s. 90 degrees in Friendship Heights feels like 99.