Storm clouds developing south of the U.S.-Mexico Border could bring thunderstorms to San Diego's mountains and deserts Wednesday.
NBC 7 Meteorologist Sheena Parveen said NBC 7's Doppler Radar was capturing storms pushing their way north into the Southern California region at about 8 a.m.
Light and scattered rain was falling in the mountains south of Julian and near state Route 79. Fast-moving rain will likely stay east as the day progresses, Parveen said.
No watches or warnings were in effect during that time, according to the National Weather Service.
Mostly, the monsoonal moisture from the south will bring heavy cloud cover to the area. Parveen said those clouds will be slow to clear.
The deserts can expect temperatures in the mid-100s, while the mountains and inland valleys will see temperatures in the mid-80s. The coast will be about 10 degrees cooler, according to NBC 7's First Alert Forecast.
The NWS said dry and cooler weather was expected Thursday and Friday.