Maryland is experiencing a sunny yet chilly Tuesday, with a freeze warning issued for tonight as temperatures are expected to drop below freezing. This early April weather pattern is typical during the transition from winter to spring. Clear skies during the day will give way to colder conditions as the sun sets, prompting the National Weather Service to issue a freeze warning for several counties, including Baltimore, Anne Arundel, and Howard. Residents are advised to protect vulnerable vegetation and infrastructure, such as covering plants and wrapping exposed pipes. The clear skies, while pleasant during the day, will contribute to rapid cooling after sunset due to the lack of cloud cover retaining heat.