First Alert Forecast July 18, 2022 4:40 pm First Alert Forecast: Improving Humidity Temperatures will remain warm for Tuesday, but the humidity will start to improve for the rest of the week. Meteorologist David Biggar has the evening forecast for Monday, July 18, 2022. US & World Videos 2:28 First Alert Forecast: Chilly temperatures 3:05 First Alert Forecast: Cooler Thursday 3:25 First Alert Forecast: Critical fire weather 3:50 First Alert Forecast: Breezy Wednesday 3:42 First Alert Forecast: Winds & Fire Danger