A low-pressure system located north and east of the UK will bring a chilly northerly wind that will sometimes push rain and showers southwards.
By the end of the week, a new and deeper area of low pressure will emerge from the northwest, perhaps delivering an even more unstable weather pattern on Friday.
The Met Office expects temperatures as low as -2 degrees Celsius
When frigid temperatures arrive this autumn, Britons may be obliged to switch on their heaters for the first time.
Temperatures might drop as low as -2 degrees Celsius starting this evening, according to The Mirror
A cold front moving in from the north, according to Met Office senior operational meteorologist Alexander Burkill, will bring rain and high winds later tomorrow and overnight into Monday.
Behind it, chilly, northerly air will move in, making the weather seem more autumnal this week.
Temperatures will be somewhat below average for the time of year, with highs in the mid-teens Celsius for most, while some chillier areas in the north may remain in the single digits.
Monday night and Tuesday seem to be the worst, with temperatures in prone rural areas dropping to approximately -2 degrees Celsius.
Following that, temperatures will gradually climb, although it will still feel more like fall than of late thanks to gusty winds and showers, as per SomersetLive.
Later in the week, showers or more persistent rain will alternate with drier and sunnier times, according to the meteorological service.
Last night (Sunday, September 25), the temperature dropped to -0.2 degrees Celsius in sections of Tyndrum, Scotland, and it might drop as low as -4 degrees Celsius in isolated locations early next week.
Higher areas of Northern Scotland may receive snow at the start of the week when temperatures drop even more due to freezing winds.
Moving south, Northern England and portions of Scotland are expected to get severe rain.
Mr. Burkill continued, "I would expect Monday night through Tuesday to be a chilly one at -2C, and might be the coldest night of the season so far."
Uncomfortable and cold
Concerning the next days, Chief Meteorologist Steven Ramsdale stated, "The start of the week has witnessed a change in the weather as chilly air and bands of rain and showers have moved southwards."
Much of the UK will have similar circumstances over the next several days, and while it may feel cooler and breezier than previously, this is very ordinary October weather for us.
The general trend for a colder and unsettled week is positive, but the details may differ, as per The Met Office.
Looking ahead to Friday, Daniel Rudman, Deputy Chief Meteorologist, provided further insights.
On Friday, it appears like a deeper area of low pressure will move towards the northwest of the UK.
This implies that many people might expect a wetter and windier stretch on Friday than we've seen so far this fall. This, however, is not unusual for this time of year.
At this time of year, knock-on effects from the Atlantic tropical storm season can reduce confidence when predicting more than a few days ahead, thus the exact timeframes for rainfall and wind intensity for Friday may shift throughout the week.
With fall in full swing, it's time to start thinking about how the weather could affect your vacation plans.
According to Andy Butterfield, Customer Services Director for Operations at National Highways, it is always a good idea to plan your journey, which is especially crucial if you are traveling on unfamiliar roads.
Checking the weather forecast before you travel might help you decide whether it's worth delaying a trip if poor weather is predicted, or at the very least understand the traffic situation.
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