Baltimore expects a heat wave with temperatures approaching upper 90s, coupled with humidity and potential thunderstorms.

The National Weather Service issued another flood watch for the Baltimore area on Monday. The watch is in effect from 2 p.m. to midnight with the possibility of scattered thunderstorms and heavy rainfall. Up to 3 inches of rainfall per hour is possible, according to the forecast, and flash floods are possible.

A slow-moving cold front will push toward the region on Tuesday, which will bring scattered thunderstorms and showers. The National Weather Service issued a Severe Thunderstorm Watch for the Baltimore

Heavy rainfall triggered minor flooding from the Patapsco River around Patapsco Valley State Park near Elkridge, reaching as high as 19 feet Sunday afternoon. The National Weather Service said the flooding could increase as rainfall continues over the next few days.

Maryland will enjoy fantastic weather for the Fourth of July! Temperatures will start in the upper 60s early Friday morning before recovering to the upper 80s and close to 90 by the afternoon with drier, cooler air.

Baltimore is under a Code Red Extreme Heat Alert Tuesday as the heat index is expected to reach triple digits during the afternoon.

We take a deep dive into the statistics, average temperatures and normals for the month of July over the past 20 years