I assume you mean a garden thermometer? I think you need to look at proper all weather ones and expect to pay a lot more than £10?

Oh yes, I mean garden outdoor ones.

There are a couple of sites on line that might give you some ideas? I paid about £70 when buying one for a school about 15 years ago. But that was part of their weather station and it gave/recorded maximum and minimum temps.

i no free one jonahtan - run in garden wiht no cloth
if you bak inside in 30sec, it is 5C/
20sec=4C
15sec=3C
10sec=2C
5sec=1C
kust open hte dor an look= feezin
just look from insid room throo window- it too bl**dy cold to car what the temp is!!! :)

Very funny Derek I gather its been minus 18!

i get up today at 3am to chek cows, but i only get harfway theer cos to cold - it say -5C -so i now go bak to duvet an lektic banket wiht nice warm coco an dog

praps i chek on cows in hte spring

Jonathan we have a couple of the 'temperature stations' where you have an inside base station and an outside transmitter. They seem to work fine but do go through batteries rapidly - fortunately we use rechargable ones. Neither of them was expensive. In fact the only expensive one we got didn't work well...

I'd be interested in knowing if there's a good remotely controlled one, as well - I have a rain gauge which is great - and I'd like a similar outdoor thermometer - maybe I should 'google' for one...or do the Horticultural firms sell them?

how about a weather station linked to the pc ( someone else set it up! ) it gives everything that you need to know -- it told us that it was -7.8 last night!--
it gives wind direction, speed , wind chill-- I find it fascinating-- I think that there are some like moongrower has that are also relly good so maybe do a bit of 'googling!'

I have some of the digital type on my indoor windowsill. The lead, which has a sensor at the end dangles outside of the window to measure the outdoor temperature. But they are obviously giving inaccurate and incorrrect readings. Unreliable.

ours is something called 'skyview systems weatherview' and seems reasonably acurate but its on a pole with a wind vane etc more of an undertaking I think. P S we're up to zero now in bright sun !

Jonathan ours does not have a lead from inside to outside there is a base station and a totally separate outdoor transmitter. You can see temp inside and out, what weather is doing (really useful - not!), humidity, wind speed and direction.

Ah, yes. I think I know the sort of thing.

Well works for us...

the temperature sensor should be protected against any wind interference. as it will alter the reading.
I have a max min mercury thermometer that cost me £20 about 15yrs ago. it works really well.

That's interesting. I'll try protecting it then, and see if that makes a difference.

our outside sensor is on a block of wood inside an upturned terracotta cache pot. Can't be allowed to get wet and, as SBG rightly says wind would affect too.

Ahh! Thank you wise sages.

Also thinking Jonathan you have a small garden area and the outside sensor needs to be in complete shade to give a correct reading. Our is round the north side of the house but not near the house wall.

Yes that's true. I have one on the north side of my flat and one on the sunny south side also. I know the latter can only potentially give a correct reading when the sky is fully overcast. I'm going to try giving my thermometers some wind and wet protection as suggested and see if it gives me better readings.