Just how long will the hot sunny weather stick around for? If you’re looking for rain there’s not much in the forecast this week but there are a few signs of a change into next week as Alex Deakin explains.
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00:00Thanks for joining me for this week ahead weather from the Met Office.
00:03It's all about sunshine and very little in the way of rainfall.
00:09So we know it's going to be pretty much dry.
00:11And we know that temperatures will be rising.
00:13But why are we seeing this hot spell of weather and how long is it going to last?
00:18Let's deal with the why, first of all, and take a look at the position of the jet
00:21stream, that fast moving ribbon of air high up in the atmosphere
00:25that steers low pressure systems.
00:27And it's just funneling them all to the north.
00:30The jet streams to the north, taking the low pressure systems
00:32and the weather fronts.
00:33It's been a fairly wet summer so far across Iceland.
00:36Meanwhile, we are to the south of the jet, allowing high pressure
00:40to dominate, bringing plenty of sunshine.
00:43And it's the high pressure squashing the air with a combination of sunny skies
00:47day on day that will continue to lift the temperatures through this week.
00:52There are signs, subtle signs of a change
00:56as we go into the weekend and beyond.
00:58The high pressure starts to waddle away to the east,
01:01potentially allowing us to tap into even hotter air from the south.
01:05And by Friday and Saturday, we could easily see temperatures
01:08peaking in the mid 30s across the south.
01:10But this low pressure also offers the potential for some thundery showers.
01:16That's more likely to happen
01:18during the second half of the weekend and into next week.
01:22Before that, though, plenty to get through with this week's weather.
01:25So let's deal with it day on day.
01:27Tuesday's a repeat performance of Monday pretty much,
01:29although it won't be as wet across the highlands.
01:31Actually, the rain petering out even across the Northern Isles
01:34through the day, staying fairly cloudy in the far northwest, but elsewhere,
01:37lots of sunshine and temperatures starting to rise even further.
01:42We'll be up more widely into the mid 20s, maybe peaking at 30 Celsius
01:46across the southeast.
01:47Some of the beaches will be a little cooler where we see sea breezes
01:50developing and quite a brisk wind picking up across northwest Scotland
01:54as the isobars squeeze together
01:55close to this weather front during Tuesday night and into Wednesday.
01:59But elsewhere, high pressure continues to control our weather.
02:02A dry, clear night.
02:04And we will see temperatures by night increasing through the rest of this week.
02:08So a warm start to Wednesday, still a bit of a breeze,
02:11perhaps along the south coast.
02:13Certainly, it'll be quite windy across the far northwest.
02:15But otherwise, light winds, lots of sunshine, probably a sunnier day
02:19across northern Scotland where we could see temperatures in Orkney
02:22up to 20 Celsius and quite widely further south, mid to high 20s,
02:27peaking across the southeast, probably at 31 on Wednesday afternoon.
02:32Again, come Thursday, high pressure still nearby.
02:35Weather front's just flirting with the far north.
02:37So we may see a bit more cloud returning to the Northern Isles,
02:40the Western Isles and perhaps a little bit of rain at times during Thursday.
02:44But elsewhere across Scotland, Northern Ireland, England and Wales.
02:48Again, it's a fine start to what will be, by and large,
02:51another hot and sunny day.
02:53As I said, a little bit of rain just creeping into the far north.
02:56The wind should be a little lighter on Thursday.
02:58But look at these temperatures again into the high 20s widely
03:02and across the heart of England and Wales into the low 30s.
03:07Again, some of the beaches will be a little cooler, perhaps the east coast
03:10turning a little fresher as the breeze starts to pick up here
03:13as we head towards the end of the week, as that high just starts to amble
03:17a little further eastwards.
03:19The weather front may just push back to the north as we head into Friday.
03:23We could see some mist and low cloud across the Northern Isles
03:26and the northeast of Scotland.
03:27But again, for most, Friday is one more fine, hot and sunny day.
03:33And by this stage, we could just start tapping into more heat
03:35building across the south.
03:37But that easterly breeze just picking up further
03:39means that some of these eastern coasts will be just a little bit cooler
03:43on Friday.
03:43So the highest temperatures probably over the Midlands,
03:46southeast England into south Wales, where again, low 30s,
03:50perhaps even into the mid 30s in one or two spots.
03:54So temperatures, as I say, just continuing to rise throughout this week.
03:57And then that question mark as we go into the weekend,
04:00as the high starts to pull away, still a lot of hot and sunny weather
04:03for most on Saturday.
04:04But just the possibility that this low pressure system may introduce
04:09some thundery showers late on Saturday night and into Sunday.
04:13But that's a long way off.
04:15But signs of things changing, perhaps as we go into next week.
04:19So if you're after rainfall, there's not much at all to come this week.
04:23But signs of a change, perhaps as we go into next week.
04:27Stay up to date with the latest through this week
04:29by following the Met Office across social media.