The Weather Outlook

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Chunky Pea
25 May 2026 12:09:37

Bliss! 🥰

Worth bearing in mind that it often turns unsettled in early June, the "European monsoon" as it was colloquially called.

Originally Posted by: Retron 

Problem is for these here parts is that the 'European monsoon' has been in full swing since last October! 

Not fussed about heat as you know, but I really need some proper dry weather for a couple of weeks for sorting out the garden. 


Patrick,

East Galway, Ireland.

moomin75
25 May 2026 12:28:22

Just looking at the ECM EN run, and it really is a case of 'make the most' of this short fine spell. 

Early June:

UserPostedImage

Originally Posted by: Chunky Pea 

Absolutely, all models are pointing to an unseasonably cool and wet start to meteorological summer, and the longevity of the cool spell is at least 2 weeks, but could very well be much of June, as once these patterns set in, they are hard to shift, especially in summer with a reduction in strength of the jet stream. 


Witney, Oxfordshire

100m ASL

GezM
  • GezM
  • Advanced Member
25 May 2026 13:38:15

Absolutely, all models are pointing to an unseasonably cool and wet start to meteorological summer, and the longevity of the cool spell is at least 2 weeks, but could very well be much of June, as once these patterns set in, they are hard to shift, especially in summer with a reduction in strength of the jet stream. 

Originally Posted by: moomin75 

I agree that it is looking unsettled but not sure about unseasonably cool. Looks more like temperatures returning to the long term average or a little below. But it will be interesting to see if this is a 2 week blip or a pattern setter for the summer. 


Living in St Albans, Herts (116m asl)

Working at Luton Airport, Beds (160m asl)

moomin75
25 May 2026 13:48:57

I agree that it is looking unsettled but not sure about unseasonably cool. Looks more like temperatures returning to the long term average or a little below. But it will be interesting to see if this is a 2 week blip or a pattern setter for the summer. 

Originally Posted by: GezM 

Yep, I stand corrected. 16-18c and GFS does tend to undercook temperatures, so maybe 19 or 20c but plenty of rain around. 

Can't say that's necessarily a bad thing, some hot dry spells interpersed with more changeable would be a more typical English summer.

That said, if we are getting 34c in May, God knows what may be possible in July and August. Could be pushing records again.


Witney, Oxfordshire

100m ASL

cultman1
25 May 2026 13:57:52
Time will tell and I look forward to to Brian’s forecast shortly on his views for summer 2026

I personally think we will be in for a consistent warm summer  even after a small potential dip in temperatures during the first week of June  

Bertwhistle
25 May 2026 13:59:17
June 2025 started off pretty rubbish. End of second week things changed and we ended up with the hottest June, and indeed the hottest summer, on record.

So no issue with a poor start to June (any more than there was in 1975 1989 1995 2013 etc etc


Bertie, Itchen Valley.

Retire while you can still press the 'retire now' button.

Rob K
25 May 2026 18:32:36
Certainly looks topsy turvy, back to 15C by day 9 and 10. Hard to believe as I sit on the terrace at 7.30pm with a cold beer and a balmy warmth more reminiscent of a summer evening in Greece!

Looks like the models were overcooking the heat today a tad, 34.4 looks to be the hottest I think?

Edit: I had missed the 34.8 at Kew. 


Yateley, NE Hampshire, 73m asl

"But who wants to be foretold the weather? It is bad enough when it comes, without our having the misery of knowing about it beforehand." — Jerome K. Jerome

Jiries
25 May 2026 19:07:55

Yep, I stand corrected. 16-18c and GFS does tend to undercook temperatures, so maybe 19 or 20c but plenty of rain around. 

Can't say that's necessarily a bad thing, some hot dry spells interpersed with more changeable would be a more typical English summer.

That said, if we are getting 34c in May, God knows what may be possible in July and August. Could be pushing records again.

Originally Posted by: moomin75 

June need to prove to beat today highest record 34.8. I hoping to see new record for June be updated since 1976 which was non global warming that time.  38C will do nicely so hope some point the models to start showing another heat.

fairweather
25 May 2026 23:20:49

Problem is for these here parts is that the 'European monsoon' has been in full swing since last October! 

Not fussed about heat as you know, but I really need some proper dry weather for a couple of weeks for sorting out the garden. 

Originally Posted by: Chunky Pea 

What a joke of weather the UK and Ireland is? I could ship you as many lorry loads of dust as you want for your garden and no doubt you could ship me a spare 100mm of rain I need to get my garden back to where it should be at the end of May! By the way I'm way nearer to mainland Europe than you - about 69 miles away to be precise.


S.Essex, 42m ASL
Ally Pally Snowman
26 May 2026 06:07:57
AIFS now flirting with the idea of another plume around 7th June. One to keep an eye one.
Bishop's Stortford 85m ASL.
DEW
  • DEW
  • Advanced Member
26 May 2026 08:02:50
FAX - HP ca 1030mb near E Scotland for the next two days, then moving off SE-wards and losing its Identity by Sat 30th. At this time pressure has dropped on the Atlantic, W-lies have spread to N Britain, and some fronts are (rather tentatively?) being pushed across Britain, losing strength as they  move E-wards.

GFS Op 0z - keeps HP over Britain for a day longer than FAX, but W-lies are there by Sun 31st. Then the pressure pattern for Britain is of typical mobile Atlantic weather, more unsettled in the N, more settled in the S, alternating between HP spreading N from France ( Mon 1st,  Fri 5th) and troughs of LP spreading S from Iceland (Wed 3rd, Sun 7th) i.e. . On Thu 11th however a depression 995mb has developed off SW Ireland and appears poised to run SE-wards.

ECM - like GFS with some differences in timing, typically a day later

AIFS - London, maxima after tomorrow dropping away to 20C Wed 3rd, and after a warm weekend 6th/7th back to 20C. Rain Tue 2nd and Tue 9th but not a lot. Edinburgh, maxima mostly in high teens to Tue 9th, a little warmer at the end of this week but a cool couple of days at the end of next. Rain in small amounts on Sat 30th and every day in the following week.

GEFS - steady decrease in mean temp well supported by ens members from 10C above norm now to norm  on Wed 3rd and continuing there or a little below until Thu 11th. Dry for a few days in the north, otherwise one ens member or another predicting a little rain somewhere at sometime in this period, no clear  pattern but highest chances around Thu 4th.


War is God's way of teaching Americans geography - Ambrose Bierce

Chichester 12m asl

Brian Gaze
26 May 2026 15:43:23
No cause to get excited / worried yet, but there have been a few hot outliers appearing in the ensembles as we head into June. 
Brian Gaze

Berkhamsted

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NMA
  • NMA
  • Advanced Member
26 May 2026 16:34:38
I hope they remain outliers.
Vale of the Great Dairies

South Dorset

Elevation 60m 197ft

Heavy Weather 2013
26 May 2026 19:04:16

No cause to get excited / worried yet, but there have been a few hot outliers appearing in the ensembles as we head into June. 

Originally Posted by: Brian Gaze 

I’ve seen this script before in the south a lot over the last 6 years. Any cooler spell gets diluted down to just about average before the next heat wave is on the horizon. Even on 12z from the 07June there is an increasing trend to go hot again.


Mark

Beckton, E London

Less than 500m from the end of London City Airport runway.

Matty H
26 May 2026 22:39:52

No cause to get excited / worried yet, but there have been a few hot outliers appearing in the ensembles as we head into June. 

Originally Posted by: Brian Gaze 

Excellent. Until recently the second half of June was looking high pressure dominated. Hopefully that continues and well beyond 


Yate, Nr Bristol

TBFTEIARBSC

DEW
  • DEW
  • Advanced Member
27 May 2026 07:05:26
FAX - HP currently near E Scotland moving SE-wards, well into C Europe and declining by Fri 29th. At the same time westerlies move in carrying a few fronts, hesitantly at first, but a steady flow from the west by Sun 31st.

GFS Op 0z - the westerlies continue for some time with disturbances* in the flow, as usual in this setup least settled in the north, fine weather in the south. Eventually HP noses in from the SW Thu 11th 

(* a cool but weak trough Tue 2nd, LP 990mb N Scotland Thu 4th, 980mb W Isles Sat 6th, 1010mb SW Ireland Mon 8th )

ECM - keeps HP over England until Sat 30th before adopting the GFS pattern of westerlies (to Fri 5th)

AIFS - London, maxima 25C+ to Sat 30th, dropping to 13-15C Mon 1st - Mon 8th with frequent rain in this period before temps rise again. Edinburgh, a little cooler at first but otherwise temps and rain similar to London though rain rather heavier.

GEFS - mean temp dropping to norm Wed 3rd  (Mon 1st in Scotland) and staying there with quite good ens support to Fri 12th; a few warm/hot outliers around Sun 7th. Chances of rain for a week from Mon 1st, not much in the south, more in the north esp NW, and most likely early in the week


War is God's way of teaching Americans geography - Ambrose Bierce

Chichester 12m asl

Charmhills
27 May 2026 08:15:06
Could be some useful rain around next week, but it does vary from model to model, ECM is looking wet even for the south with some welcome rain if it's to be believed??

Fresher too.


Loughborough, EM.

Knowledge is power, ignorance is weakness.

Duane.

Matty H
27 May 2026 08:39:13

Could be some useful rain around next week, but it does vary from model to model, ECM is looking wet even for the south with some welcome rain if it's to be believed??

Fresher too.

Originally Posted by: Charmhills 

Hopefully not for here. We certainly don’t “need” rain here. I’m always sceptical of rainfall projections in advance. They often diminish for here this time of year


Yate, Nr Bristol

TBFTEIARBSC

Charmhills
27 May 2026 09:13:08

Hopefully not for here. We certainly don’t “need” rain here. I’m always sceptical of rainfall projections in advance. They often diminish for here this time of year

Originally Posted by: Matty H 

Just the June monsoon, I think, normally lasts about 2 weeks??


Loughborough, EM.

Knowledge is power, ignorance is weakness.

Duane.

Matty H
27 May 2026 17:00:22

Just the June monsoon, I think, normally lasts about 2 weeks??

Originally Posted by: Charmhills 

It’s never really stuck in my mind as a thing. It’s certainly not an every year thing. I can’t think of any real trend one way or the other in June here


Yate, Nr Bristol

TBFTEIARBSC

tierradelfuego
27 May 2026 19:39:31
GFS 12z Op looking like a week's respite from the heat and dry before it potentially reloads again, not seeing anything sustained unsettled there tonight.
Bucklebury

West Berkshire Downs AONB

135m ASL

VP2 with daytime FARS

Rainfall collector separated at ground level

Anemometer separated above roof level

WeatherLink Live (Byles Green Crew )

DEW
  • DEW
  • Advanced Member
28 May 2026 06:37:56
FAX - HP moving smartly from E Scotland to C Europe and replaced by light W-lies from tomorrow. Atlantic LPs pushing fronts across Britain, mainly for Scotland on Sat 30th, for England on Mon 1st.

GFS - ten days of westerlies from Mon 1st with occasional embedded troughs (the most significant on Thu 4th affecting the whole country, the others mostly affecting the north) before HP re-established just west of Ireland 1030mb Sat 13th.

ECM - (to Sat 6th) agrees with GFS. The trough on Sat 6th also looks as if it will develop significantly.

AIFS - London, maxima dropping in stages from 28C now to 18C Mon 1st and staying there or even a little cooler to Tue 9th before slowly rising again, Rain Tue 2nd to Sun 6th, traces a day before and after. Edinburgh, similar pattern for maxima, but from 20C down to 15C, Some rain every day from Sun 31st to Mon 8th.

GEFS - mean temp with good ens support down from present warmth to near norm from Mon 1st for ten days to Thu 11th when temps begin to rise again. There are chances of rain throughout this ten-day period, mainly dry before and after, rain most likely Tue/Wed 2nd/3rd. slowly fading out (more persistent in NW)


War is God's way of teaching Americans geography - Ambrose Bierce

Chichester 12m asl

Rob K
28 May 2026 15:18:08
Yesterday's GEFS 12Z showed quite a few hot runs by the end of next week although the majority were staying coolish.

That hotter cluster has now vanished although there looks to be a reasonable trend towards a climb to warmer conditions by the second week of June.

The extended ECM shows a hefty plume rising into central Europe in the latter stages, but too far east to affect the UK.


Yateley, NE Hampshire, 73m asl

"But who wants to be foretold the weather? It is bad enough when it comes, without our having the misery of knowing about it beforehand." — Jerome K. Jerome

Rob K
28 May 2026 17:42:24
GFS 12Z tones down any cool spell, somewhere reaches 20C every day for the whole run, and back to mid-high 20s by the end.
Yateley, NE Hampshire, 73m asl

"But who wants to be foretold the weather? It is bad enough when it comes, without our having the misery of knowing about it beforehand." — Jerome K. Jerome

Matty H
28 May 2026 19:24:09

GFS 12Z tones down any cool spell, somewhere reaches 20C every day for the whole run, and back to mid-high 20s by the end.

Originally Posted by: Rob K 

Encouraging, indeed. Hopefully the heat ramps up as well


Yate, Nr Bristol

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