Brits are set for a few more days of sunshine in the coming weeks as we get more rays of sun before the cold really kicks in. So don’t put the sunglasses and shorts away just yet.

Brits could within days be experiencing temperatures above 20C according to one forecaster. And that comes despite awful weather this week.

There’s been a tumultuous start to the week, with parts of the UK experiencing a deluge of flash flooding. Over 100mm of rain has fallen in the past 48 hours, causing widespread travel chaos and property damage.

As of Tuesday morning (September 24), the Environment Agency had issued 31 flood warnings for England, indicating that flooding is expected. Additionally, there are 75 flood alerts in place following a series of yellow and amber weather warnings from the Met Office.

However, weather maps from WXCHARTS, using data from Metdesk, suggest jet streams are en route to deliver warm air from the Caribbean directly to our shores. This warm front is predicted to reach the UK on Sunday, October 6 – with wind speeds of around 130mph.

Despite frosty early mornings with temperatures in single figures, by afternoon some areas in the southeast may enjoy highs in the late teens. Monday, October 7 appears set to bring cooler conditions, with highs just reaching the low teens, whereas Tuesday, October 8 will see temperatures push towards the mid-teens according to WXCHARTS’ projections, as reported by the Express, reports Lancs Live.

Charts for October 8 illustrate a warm band with temperatures above 20C for the south west and into the Midlands. Temperatures a little lower are expected in the south east and East Anglia.

The Express reports that October 9 is expected to be the warmest day in this spell. Temperatures of up to 22C are predicted by Netweather.tv.

Brits might enjoy a fleeting touch of warmth providing respite from the week’s persistent showers, yet the Met Office cautions that a dreary stretch is on the horizon for October. The outlook for September 28 to October 7 reveals a tranquil close to September transitioning into cloud and patchy rain will probably quite quickly spread into the northwest, and is increasingly likely elsewhere by Sunday.

The initial days of October promise a mix of serene spells interspersed with “spells of rain, heavy in places, with a risk of strong winds” according to forecasters who added: “A more settled spell is possible, but less likely. Temperatures are likely to be near to or below normal throughout, and it is likely to be notably cold at the start of this period, before temperatures recover.”

Looking onward to October 7 to October 21, the UK should brace for fluctuating wet and windy episodes peppered with occasional lulls of more tranquil, drier conditions. These will be “interspersed with some spells of calmer, drier weather. Temperatures will most likely be close to normal,” the Met Office said.

In their anticipation of October developments, Netweather professionals have been seeking indications of an Indian summer typically characterised by an unexpectedly warm phase. According to the Met Office definition, an Indian summer describes a spike in unusually mild temperatures during October and November.

The extended forecast indicates: “Although there is inevitably a fair amount of uncertainty at this range, it is looking probable that this period will be wetter than average for most of the UK, with low pressure systems and some heavy falls of rain associated with frontal systems and south-westerly winds.”

Furthermore, predictions include: “Some colder outbreaks of polar air are likely to continue to affect the north at times, particularly the north of Scotland, while the south will often be in warm tropical maritime air.”