The Weather Outlook

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scillydave
28 May 2026 19:10:42
Just kicking off this thread as a reminder to all - stats to follow after the weekend as I'm away until Sunday night. In the meantime im more than happy if anyone wants to post some below to help people with their predictions.

My stab in the dark this month is 15.65c


Currently living at roughly 65m asl North of Cowbridge in the Vale of Glamorgan.

Formerly of, Birdlip, highest village in the Cotswolds and snow heaven in winter; Hawkinge in Kent - roof of the South downs and Isles of Scilly, paradise in the UK.

Hungry Tiger
29 May 2026 18:42:55
Hi Dave. Just stickied it for you. 

🙂🙂🙂🙂🙂🙂.

Thanks again from  the Two moderators and team for this. 🙂🙂🙂🙂🙂


Gavin S. FRmetS.

TWO Moderator.

Contact the TWO team - [email protected]

South Cambridgeshire. 93 metres or 302.25 feet ASL.



Caz
  • Caz
  • Advanced Member
30 May 2026 06:15:43
This is copied from our June CET thread a couple of years ago.  

June Historical data

All-time CET Average 14.34c

1991 - 2020 Average  14.64c

June statistically is the month with the smallest difference between the long-term CET and the most recent Data Set being 1991- 2020 at just 0.3c

All-time warmest

1846    18.20

1676    18.00

1826    17.30

1822    17.10

2023    17.00

All-time Coldest

1675    11.50

1909    11.80

1919    11.80

1972    11.80

1749    11.90

1991 - 2020 Warmest

2018    16.10

2017    16.00

2003    15.90

2005    15.80

2006    15.80

1991 - 2020 Coldest

1991    11.90

2012    13.50

2013    13.60

2011    13.70

1999    13.80


Market Warsop, North Nottinghamshire.

Join the fun and banter of the monthly CET competition.

Bertwhistle
30 May 2026 12:06:05
Just a note that Hadley lists June 2025 above 2023, but gives the same temperature of 17.0 to 1 decimal place.
Bertie, Itchen Valley.

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

Ally Pally Snowman
30 May 2026 12:25:15
Average first week then some heat? I think the chances of a significant heatwave are probably higher than normal but not certain. Another tough one.
Bishop's Stortford 85m ASL.
Hungry Tiger
30 May 2026 16:30:23
I'll go for  16.0C. 

Very hard one to call with the phenomenal last week of May. 🙂🙂🙂🙂


Gavin S. FRmetS.

TWO Moderator.

Contact the TWO team - [email protected]

South Cambridgeshire. 93 metres or 302.25 feet ASL.



Bertwhistle
30 May 2026 18:58:21
16.8°C for me please. I know I'm out of the annual competition but I've a feeling about June.
Bertie, Itchen Valley.

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

Hungry Tiger
31 May 2026 18:32:28

16.8°C for me please. I know I'm out of the annual competition but I've a feeling about June.

Originally Posted by: Bertwhistle 

I think I know where you're coming from. Today for example was supposed to be so called cool. Like heck it was. I went to visit a good mate of mine in Chelmsford.  This afternoon had the ambience and feel of an afternoon in late July, never mind the fact it was late May. The temperature was 24C. Hardly run of the mill late May. 🙂🙂😵😵🙂🙂. 


Gavin S. FRmetS.

TWO Moderator.

Contact the TWO team - [email protected]

South Cambridgeshire. 93 metres or 302.25 feet ASL.



Hungry Tiger
31 May 2026 18:33:39

16.8°C for me please. I know I'm out of the annual competition but I've a feeling about June.

Originally Posted by: Bertwhistle 

I've gone for 16.0C. I was tempted to go for 17.0C. Be very interesting to see how things turn out. 🙂🙂🙂


Gavin S. FRmetS.

TWO Moderator.

Contact the TWO team - [email protected]

South Cambridgeshire. 93 metres or 302.25 feet ASL.



Bolty
31 May 2026 18:57:00
I think I missed May's and am probably out of the contest as a result. Oops 😐.

Anyway, for the sake of taking part, I'll go for 16.3°C.


Scott

Blackrod, Lancashire (4 miles south of Chorley) at 156m asl.

My weather station 

Hungry Tiger
31 May 2026 19:11:00

I think I missed May's and am probably out of the contest as a result. Oops 😐.

Anyway, for the sake of taking part, I'll go for 16.3°C.

Originally Posted by: Bolty 

I think it'll be a high one. 🙂🙂


Gavin S. FRmetS.

TWO Moderator.

Contact the TWO team - [email protected]

South Cambridgeshire. 93 metres or 302.25 feet ASL.



Bertwhistle
01 June 2026 10:15:44

I've gone for 16.0C. I was tempted to go for 17.0C. Be very interesting to see how things turn out. 🙂🙂🙂

Originally Posted by: Hungry Tiger 

Just a remarkably similar pattern in some ways- a drenching up to February then long dry spells through spring; although 2025's May heat wasn't concentrated at the end, the 3 months have been generally similar in CET. Then June 2025 started cool, but was lifted by double heatwaves, starting around 12th. I wonder if that warm up was predicted in the models as early as 1st?


Bertie, Itchen Valley.

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

Bertwhistle
01 June 2026 12:52:31
Just watching the GFS ENS roll out and weirdly, the 850s pattern around 10th is similar to last year in the Op and the mean about the same date is notably on the rise. If it were to turn out that way, this year is if not carbon copy, oddly similar. 
Bertie, Itchen Valley.

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

Bertwhistle
02 June 2026 13:28:12
HadCET 15.3°C to 1st. So a warm first day despite breakdown in the wearher.
Bertie, Itchen Valley.

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

Gavin D
03 June 2026 13:05:12
Hadley

15.8 to the 2nd

1.7c above the 61 to 90 average

1.9c above the 91 to 20 average

Gavin D
04 June 2026 12:27:25
Hadley

15.7 to the 3rd

1.6c above the 61 to 90 average

2.0c above the 91 to 20 average

Rob K
05 June 2026 06:21:00
Amazing that we’re still well above average when everyone has been saying how cold it is! The contrast from last month does make it seem that way. “Average” summers of the past really must have been very cold!
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

Spring Sun Winter Dread
05 June 2026 09:41:00
Summer 2011 wasn't that long ago and was pretty damn cool (coldest since the 1980s). I remember a lack of warmth rather than anything especially cool, 25c+ was at a premium that year
Gavin D
05 June 2026 12:52:49
Hadley

15.7 to the 4th

1.3c above the 61 to 90 average

2.1c above the 91 to 20 average

Dickieboy68
06 June 2026 16:54:19
At this time of year, I try to be more educated on the guess by watching the BBC's day-high and night-min, adding together and halving. The next few days show 24, 26, 27 as the sums, giving 12, 13, 13.5. But the days are longer now obviously, and I'm never quite sure if it takes longer to heat up or cool down, depending on cloud cover etc. 

All good fun though trying to work out a 'system' from high level rudimentary data.....

Happy hunting all!


Dickieboy - In the deep mid-Wiltshire 85m ASL

Formerly Guest (16) since 2004

Spring Sun Winter Dread
06 June 2026 18:28:35
I believe the calculation is done as a simple mean (just a min and max divided by 2) so length of time it was warm or cold for is irrelevant... 
Bertwhistle
06 June 2026 18:30:43
HadCET 15.0°C to 5th. Quite a drop on previous day.
Bertie, Itchen Valley.

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

scillydave
06 June 2026 20:50:41
Here are the predictions for June and they're quite interesting in that almost exclusively everyone has gone high -  indeed 15 of the 24 entrants have gone for 16.1c or above. That would be warmer than all but 2 Junes since at least 1991 although those two Junes were 2023 and 2025 so who knows! Given the coolish start to the month and indeed the currently forecast mid month warm up it'll be interesting to see where we end up on the 30th June. I think it's fair to say that I'm either going to have a fantastic month or a disastrous one!!

June CET Predictions

Redmoons               18.25

WindyWillow           16.93

Jemblow                  16.9

Grandad                  16.8

Bertwhistle              16.8

Domma                   16.5

Rick M                     16.45

GezM                       16.4

Bolty                        16.3

DingleRob                16.2

Ally Pally Snowman 16.2

Stormchaser            16.17

Wallaw                     16.15

Sussex snow magnet 16.1

Snowshoe                 16.1

Hungry Tiger             16

Caz                           15.9

SaintSnow                15.9

Magda                      15.8

Lanky                        15.76

Kendalian                 15.7

Dickieboy68             15.68

Scillydave                 15.65

Spring Sun Winter Dread 15.3

June CET                  14.34


Currently living at roughly 65m asl North of Cowbridge in the Vale of Glamorgan.

Formerly of, Birdlip, highest village in the Cotswolds and snow heaven in winter; Hawkinge in Kent - roof of the South downs and Isles of Scilly, paradise in the UK.

Dickieboy68
06 June 2026 21:58:23
Ahhhh, ok.

I had it my mind it was more sophisticated than that, 😂, - the average of 24 hourly readings from all the automatic locations in the CET region. But if it is just a high/low average, no wonder all my values have been pschit!!

I demand a recount 😡🌡️


Dickieboy - In the deep mid-Wiltshire 85m ASL

Formerly Guest (16) since 2004

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