Tonight: Many places will start clear this evening before cloud spread north, bringing outbreaks of rain, although initially to southern areas. Overnight the rain becomes more widespread, and perhaps locally heavy.
Wednesday: Areas of sometimes heavy rain through the morning, especially across northern areas. During the afternoon the rain turns lighter and patchy, with many southern areas becoming dry whilst remaining cloudy.
Outlook for Thursday to Saturday: Thursday cloudy with spells of rain. Sunshine and sometimes heavy showers for Friday. Saturday showers or longer spells of rain, and potentially very windy. Generally temperatures will be near average.