A trough off the West Coast will bring cooler temperatures this weekend, with gusty west winds at times and possible showers later tonight into Sunday as low pressure draws tropical moisture in our direction. We'll start the big holiday weekend off on a good note under partly cloudy skies today with highs in the lower 70s. West winds will increase to 10-15 mph this afternoon with gusts to 20 mph. Tropical moisture from weakening Hurricane Marie will be drawn north into our area tonight, with increasing clouds as scattered showers develop. Unfortunately, Sunday could be a soggy day out there with scattered showers as highs cool to the 60s. Some instability could spark an isolated thunderstorm, but overcast skies may prevent much widespread instability. As a moist southwest flow continues into Labor Day, we could see a few lingering showers, gradually clearing as this slug of moisture lifts northeast out of the area. Total rainfall amounts of around a tenth to a quarter inch are possible across much of SoCal, with locally a half inch or more possible in the mountains or around any thunderstorm that develop. High pressure will return to the Desert Southwest throughout much of next week, setting us up in a late-season monsoon pattern with possible afternoon thundershowers continuing over our mountains and deserts!

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