The Met Office revealed it's latest outlook for Glastonbury Festival 2019 today (June 7), and it's looking wet.
The last festival outlook from the forecaster was looking relatively positive, but it seems to have deteriorated since then.
"Longer spells of rain" are predicted for the festival weekend, while a lot of rain is also forecast for the run-up to the event, meaning we could be in for a muddy Glastonbury.
We chatted with Grahame Madge from the UK's national weather service about how things are shaping up for Glastonbury Festival 2019.
Showers and longer spells of rain
Although confidence is low for the period of the festival between Wednesday, June 26 and Sunday, June 30, the current outlook is looking quite wet.
Mr Madge said: "If we look at the current six to 30 day forecast, particularly for June 21 to July 5, confidence is currently low, but southern areas are likely to be prone to some showers and longer spells of rain.
"Temperatures are currently looking to be slightly above average.
"There is also a risk of thunderstorms."
Glastonbury Festival 2019 - Latest news
How much rain in the run-in?
For most Glastonbury-goers, the potential for mud is a very real and horrifying prospect.
However, a big factor in how muddy the festival gets is how much rain the Pilton site sees during the run-up to the festival, and how water-logged the ground is.
Grahame has taken a look at the run-in, and it's not looking great.
Three weeks out
Mr Madge said: "Obviously over the next few days, there will be a lot of rainfall as Storm Miguel moves through the UK.
"To have a named storm in June is relatively unusual."
Two weeks out
Mr Madge said: "We are hoping that next week we will have a plume of warmer air coming in, which is above the continent at the moment.
"However, I'm afraid that this is also likely to bring in much heavier rain.
"Looking at the maps that we have access to, it seems like there will be quite a lot of heavy rain next week across the UK, but particularly south of the M4 corridor.
"Of course not everyone will get these showers, but at the moment, the pattern is looking very wet for the south of the UK next week."
Not good news for Liam Gallagher
Liam Gallagher will not be a fan of this latest Met Office forecast.
He revealed today (June 7) that he really does not like mud at Glastonbury Festival.
"I'm well excited to play the Pyramid Stage," he said on BBC Radio 2.
"It's a top place, there's nothing like it, having a festival like that, lots of people, lots of energy.
"As long as it's not muddy, I can't be dealing with the mud."
Liam added: "I know everyone bangs on about the mud like, 'it's great' and all that. No it ain't.
"There's nothing great about mud.
"We don't know if it's going to be muddy yet, it might be nice.
"But if it's going to be muddy, I'm cancelling. Someone else can have that slot, I'm not having mud."
When will we have more certainty on the weather?
The summer months are notoriously hard to accurately predict, according to Grahame, particularly with what he has called " a very unsettled period" at the moment.
However, a more solid day-to-day forecast should be achievable nearer to the festival.
He said: "At this stage, particularly with the unsettled pattern we are seeing, it is very hard to predict what might happen.
"We will hopefully have a much clearer picture for festival-goers around seven days before the festival.
"We can provide a lot more certainty within that time-frame."
Glastonbury Festival weather facts and figures
But could 2019 be as bad as the legendary rains of 2007?
Probably not, because 2007 saw the most rain ever recorded in a day at Glastonbury Festival.
Nicky Maxey, from the Met Office, said: "The highest rainfall in a day came in 2007, when 60.1mm was recorded in a 24 hour period.
"The highest ever temperature recorded at Glastonbury Festival was 31.2 degrees on the Wednesday of 2017.
"2017 also saw the highest ever daily low temperature, as 17.6 degrees was the lowest temperature recorded in a 24 hour period.
"The lowest ever temperature recorded at Glastonbury was 4.2 degrees in 1987, while the strongest gust was recorded at 40mph in 1985."
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