First Alert Weather July 21, 2021 3:39 pm NBC10 First Alert Weather: Severe Storms Scream Through Philly, Pa. Burbs First Alert Weather Meteorologist Krystal Klei has your latest update. US & World Videos 3:01 Passing showers likely overnight ahead of a mixed Sunday 3:17 Showers and storms are expected to pass through the region Saturday night 4:17 Mixed bag of weather for your Memorial Day Weekend 3:11 Temperatures stay warm through the weekend 3:28 Nice conditions expected for the holiday weekend with rain possible on Memorial Day