There are speed restrictions on the railways for Monday/Tuesday to 60mph, which might double some train times. Likely going to be lots of cancellations as well, as the trains and crews won’t be where they need to be.
There’s rain forcast for Wednesday though.
I was in Cambridge that day wearing thin arm and leg warmers. I didn’t half get funny looks but I was the perfect temperature, about 2 or 3 months into my chemotherapy course 
If it’s anything like where I live, be careful when it does finally rain. All the oils come up out of the tarmac and the road gets wicked slippery.
When we Brits go to Orlando the car rental places warn us about this - Florida Ice. 
Or the wrong type of leaves are on the track 
In terms of overall ability of the population and infrastructure to cope with heat, agreed. But in terms of being able to still get a training ride in it’s pretty much apples to apples (apart from possibly melting roads!). Get out early, take plenty of fluids, maybe add some hydration tablets if you don’t normally, pay attention to HR and RPE a bit more than normal and be prepared to dial things back if you’re struggling, and you can still get a decent ride in. Cold shower and/or putting a bucket of iced water under your desk (easier if working from home!) to dip your feet into are good ways of cooling off afterwards in the absence of air conditioning and swimming pools.
Lots of trains also don’t have AC even if they are running ok which can get pretty unpleasant!
Oi! We had a pretty serious crash at Salisbury last year due to leaf fall. It’s no joking matter. Physics is a b!tch.
Yes, I’m a train driver.
I’ve just got back from a week in Greece: It felt pretty hard work on the hilly group rides in midday sun… but being able to get back to the hotel and jump in the sea made it much more tolerable than the next few days in the UK are going to be.
Hi from Arizona (where it is currently monsoon season and therefore 109f (~42c) + humidity yesterday–group ride started at 6 a.m. and was still miserable). This advice is solid. You can go out, but be very prepared and overreact to the signs your body gives you. Heat stroke is a very real thing.
I went out for a ride this afternoon in Cambridge where the temperature hit around 31 degrees.
RPE was certainly higher, but that’s more likely due to in adequate pre- ride fuel. The biggest thing for me was the temperature of my fluids… After only a few minutes both bottles were SO warm… Hot sugar water, not good.
We freeze water in insulated bottles. It will usually stay at least cool for 90 minutes to 2 hours.
I imagine this is you looking at us while reading this thread
Where as Brits will be quite happy riding in shorts at 5C. It’s all about what you’re physiologically adapted to.
Might have to do that on Tuesday morning!
Lay it flat so there’s ice the whole length interacting with the water once you fill it up in the morning. Freeze one bottle 1/4 full, one 1/2 full.
Take them out a few minutes early in case the lids are frozen on.
Yep, that’s why I said
If you ever ride an international event like Paris Brest Paris where over 50 countries can be represented. You’ll see hot climate riders in arm warmers and leg warmers and warm jackets balaclavas , whilst northern Europeans are still in their shorts and t shirts, bare legs and arms etc.
Bucket list !!