A cold upper level trough is diving south along the west coast and produced scattered showers and even some hail. We saw the first wave of showers come through today but now most of the activity has shifted to the interior. There are plenty of breaks in between the showers and most areas saw sunshine today. After the sun sets and we lose the heating shower activity is expected to decrease quite a bit.
Thursday as the trough gets closer another wave of showers is expected to move through the area. The air mass will be colder but the coldest air isn`t expected to arrive until later in the afternoon and evening. It`s during this period that there will be a small chance of some thunderstorms.
This system is still very moisture starved. Additional rainfall should be very light and many will see no additional rainfall.
Above 4000ft some snow is possible by late Thursday. We should be done with showers Thursday. Friday and Saturday look dry and warmer. There is a minor chance of a sprinkle or shower in NW SLO county at the coast with an approaching minor disturbance. This minor disturbance moves across the area Sunday but I am reluctant to put rain in the forecast as of now, if anything happens it'll be extremely light.
The rest of next week looks dry.