Delaware's weekend forecast includes rain, thunderstorms and flooding. What to know

After a sweltering week with little relief, Delaware is in for a rainy weekend before the next heat wave arrives.

What is the weather like in Delaware this weekend?

The National Weather Service on July 12 reported that the Mid-Atlantic is at a slight risk of excessive rainfall on Friday. A weak front with tropical moisture remains in parts of the Northeast and Mid-Atlantic through Sunday. Thunderstorms are possible through Saturday morning.

The inclement weather will bring localized areas of flash flooding, with urban areas, small streams, roads and low-lying areas the most vulnerable.

After the rain, hazardous heat is expected to expand across the eastern United States late this weekend.

Flood advisory

The National Weather Service issued a flood watch for New Castle and Kent counties due to possible flooding caused by excessive rainfall. Both counties are under flood watch from 6 a.m. on Friday through Saturday afternoon.

The advisory for New Castle County predicts 1 to 2 inches of rainfall, but localized amounts near 3 to 4 inches are possible. In Kent County, 2 to 3 inches of rainfall are expected, but localized amounts near 4 inches are possible.

In both counties, excessive runoff may result in the flooding of rivers, streams, creeks and other low-lying and flood-prone areas. Creeks and streams could rise out of their banks and low-water crossings may be flooded.

Flood safety:How to escape your car in flood? Learn that and other safety tips for quickly rising water

Delaware weekend weather forecast

Friday will be 82 degrees with an 80% chance of showers and possible thunderstorms, which could produce heavy rainfall. By nightfall, patchy fog remains, and the low will be around 74 degrees. Winds around 5 mph will be present, along with a 90% chance of precipitation.

The trend continues Saturday with a 70% chance of showers and possible thunderstorms. Patchy fog will be present before 11 a.m. before skies become mostly sunny and the high reaches 87 degrees. Winds around 5 mph will be present. In the evening, a 30% chance of precipitation is in store before 8 p.m., with patchy fog after 11 p.m. and clear skies. The low will be 73 degrees with calm winds.

Sunday will be sunny with a high near 94 degrees and 5 mph winds in the afternoon. Sunday night will see clear skies and a low around 75 degrees .

In line with the lingering heat wave, Monday morning starts off sunny and hot with a high near 97 degrees.

Got a tip or a story idea? Contact Krys'tal Griffin at kgriffin@delawareonline.com.