Northern Ireland is set to miss out on the Indian summer which could see temperatures soar into the 30s in parts of Great Britain.
While warnings have been issued in England ahead of what could be the hottest September day in more than 50 years, Northern Ireland is bracing itself for more rain.
The hot weather will hit the east of England, the South East, London and the East Midlands. But closer to home, we are likely to be pulling on the raincoats for what is expected to be a cloudy and wet day again today.
The Met Office has reported that rain is expected to become more widespread and more persistent in the afternoon with light winds turning into the north or north west with a maximum temperature of 16°C.
Forecasters also predicted a Level 2 heat alert for parts of Britain - meaning there is a high chance that temperatures will hit certain thresholds for at least two days and the intervening night.
The high temperatures predicted means that London could be as warm as Bangkok in Thailand and hotter than forecasts for Madrid and Los Angeles. The last time temperatures soared above 30C in September was in 2006 in Kew Gardens, which hit 30.5C on September 11.
If the mercury rises above 31.6C, which was reached at Gatwick on September 2, 1961, then it will be the hottest day for 55 years.
The highest September temperature recorded was in 1906 when the mercury soared to 35.6C in Bawtry, South Yorkshire.
Most of England will bask in temperatures in the high 20s, while Scotland will also enjoy the warmth with Aberdeen and Glasgow seeing 20C to 23C, and there is a chance Aviemore - famous for its skiing - could hit 24C.
Meanwhile, Public Health England (PHE) has issued warnings urging caution over the coming days and nights.
Dr Thomas Waite, from the extreme events team at PHE, said: "Because the heat is going to arrive very soon, think today about what you can do, and for those around you, to stay cool during the daytime and particularly at night.
"Much of the advice on beating the heat is common sense and for most people there's nothing to really worry about. But for some people, such as older people, those with underlying health conditions and those with young children, summer heat can bring real health risks.
"To keep homes and sleeping areas cool at night remember to close curtains on windows that face the sun during the day, once the sun is off windows open them up to get a breeze and think about turning off electrical devices all over the home as they can generate unwanted heat too."