Yellow weather alert for thunderstorms in Northern Ireland this week
Northern Ireland is set to be hit by thunderstorms and heavy rain within the next 48 hours, but those marching on the Twelfth should dodge the deluge.
The Met Office has issued a yellow weather warning for Thursday.
Met Office meteorologist Martin Bowles said: "Wednesday looks like it is going to be another showery day.
"There is a widespread chance of thunder, but it is not particularly likely, with temperatures reaching a maximum of 21C in some places."
However, on Thursday the treacherous weather is expected to kick in.
While many areas will miss the biggest downpours, heavy showers and thunderstorms are forecast to develop.
The Met Office said the rain is expected to be slow moving, bringing the potential for 20-30 millimetres of rain in an hour and 40-50 millimetres in two or three hours.
The weather is to pick up again for the Twelfth of July with the Mercury predicted to reach 20C.
Mr Bowles said: "On Friday there is less chance of showers, but if you're unlucky you might get caught in the odd one while out and about."
And he added: "The weekend is to stay dry.
"Saturday and Sunday will be a little above average, hitting 21C."