Extremely interesting pattern involving tropical moisture and a very slow moving, almost stagnant pattern of upper troughs and low pressure. If the models hold then I see us receiving 1 week+ of widespread showery and stormy weather spreading to rain areas at times (from early next week), and then the possibility of something bigger before we break properly into cool Autumn weather.
This looks to be a very broad scale pattern, so without wanting to mozz it, I would imagine the odds of it falling apart as we get closer to be much lower than narrower scale scenarios like single cold fronts wedged between highs.
Who knows though, in light of recent model performance it could all be a big lie.....
Models also starting to show below average temps for both max and min. We should see a mixture of sun and cloud allowing rain, sun and clear mornings to co-mingle throughout the period rather than wall to wall cloud.
Cool uppers also tend to correlate with cool temps at the surface.