Monsoonal moisture finally moved over northern California this afternoon, and isolated showers and thunderstorms have tried to deliver rain. There will be a slightly better chance of showers Tuesday, but rain amounts will be limited. The ridge of high pressure over Nevada and California is transporting more moisture around into our area. The activity will be fairly limited this evening, but there will be slightly better chance of showers and thunderstorms early Tuesday morning through early Tuesday afternoon. Overnight lows will range from the 50s in the mountains to the 70s in the valley. Tuesday will be mostly cloudy and cooler with isolated showers and thunderstorms. Highs will range from mountain 70s to valley 80s.
Most of the monsoonal moisture will have left our area early Wednesday but a few more high clouds will move overhead. Temperatures will rapidly rise to move seasonable levels. A strong ridge of high pressure will still be in control of the weather of the western United States, and California will remain on the western side of that ridge. We'll be back above average by the end of the week, before the ridge begins to weaken again by early next week. Unfortunately for our area, chances of additional rainfall will more than likely disappear after tomorrow. Valley lows will remain in the seasonable 60s and lower 70s. Valley highs will climb from the unseasonably cool 80s Tuesday back into the 90s and lower 100s going forward.