Pittsburgh is preparing for a week of variable weather, with rain and thunderstorms predicted to be the dominant features of the forecast. CBS News Pittsburgh reports that a low-pressure system is moving into the region, bringing increased moisture and atmospheric instability. This pattern is expected to result in periods of heavy rain, especially during the afternoon and evening hours, potentially impacting daily commutes and outdoor activities. The National Weather Service has issued advisories indicating that the thunderstorms may be accompanied by gusty winds and occasional lightning, prompting residents to take precautions like securing outdoor objects and staying informed through local news and weather apps.