A high-pressure system over the eastern United States is expected to impact the Rio Grande Valley. This system is the same one causing the current heat wave. As it brushes against the valley, it will stir up some atmospheric moisture.

When this moisture meets the sea breeze, it may lead to a few coastal showers. However, these showers are expected to be widely scattered and limited in coverage. Further details about the forecast are available from ValleyCentral.

Residents in the Brownsville area can find more information about the Fourth of July weekend forecast from ValleyCentral.