Heat will be the main story this weekend, transitioning to increased humidity and scattered afternoon thundershowers as monsoon moisture increases across our area. Thunderstorms last night over Western Arizona sent another outflow in our direction; this should bring increased moisture and instability today for a chance of afternoon thundershowers. Highs will top out in the mid-80s this afternoon along with south to southwest winds 10-20 mph at times. High pressure over the Four Corners next week will draw additional moisture into Southern California, bringing a good chance for afternoon showers and thunderstorms at times. Storms will vary in coverage and intensity from day to day, possibly even spilling west of the mountains over our coastal & valley areas. We'll also have to watch for easterly waves, which could further enhance our thunderstorm chances. Thunderstorms are always capable of producing heavy rain, gusty winds, dangerous lightning, and small hail. Find safe shelter if a thunderstorm approaches your area. Temperatures will cool throughout the week as highs drop from the 80s early in the week to the 70s later in the week, slightly below average for a change, with overnight lows generally in the 50s.

---