is this likely to be a long term thing? I have read in various places that interest rates may fall to 0 by the end of the year.
This is what Martin Lewis says:
"Q. What's going to happen to interest rates?
A. That's a very difficult one to call. There are at least two competing pressures here.
Normally, when the pound drops, you would increase the UK base rate. This makes people want to buy pounds with foreign currencies as they can get a better return, thus strengthening the rate. This is especially important as a weak pound makes imports more expensive, which increases inflation.
Yet there are also worries about an economic downturn. There are two main possible risks that this could happen. Firstly because of sentiment change now, and later on because of changing trade relationships when we leave the EU.
To try to prevent it, you want economic stimulus, and that means cutting interest rates – as then it encourages people to spend rather than save. And while it seems with UK base rates stuck at 0.5% there's not much room to cut, some countries have even gone as far as negative interest rates.
Overall my suspicion (and this is pure guesswork) is that interest rates will remain roughly similar to as they are now, or perhaps be cut a touch if things go wrong. But this is an ever-changing scenario."