Met is saying cool wet and windy (my bold).
"Rain will become increasingly likely in many parts of the UK from Thursday into Friday along with strengthening winds, particularly in the southwest. These winds will lower daytime temperatures below the seasonal average. The weather for next weekend looks likely to continue in the same unsettled vein, with showers or longer spells of rain for many. Daytime temperatures are expected to stay on the cool side in the south and east but frost is not likely here."