If ever the saying 'make hay while the sun shines' was appropriate, it is now. If you are enjoying the warm weather, blue skies and sunshine, you need to enjoy it while you can.
BBC and Met Office are agreed that the balmy Spring weather will have gone in a week's time. Colder air from the Arctic is set to bring wintry conditions to the UK.
It will be a big change from today (Wednesday, March 23) where parts of the UK could see temperature up to 21C. This is way above the average for this time of year.
BBC weather forecast Simon King told BBC Radio 5 Live listeners: "How long is this warm weather going to last? Well, probably until around about Monday, Tuesday next week.
"Because then onwards actually it's going to get much colder. In fact it will feel like freezing this time next week with cold Arctic air moving its way in.
"So, if you like the warmer weather enjoy it while you can over the next few days."
Met Office five-day forecast
Today : A chilly start but after any early morning fog clears it will be dry for the vast majority with long sunny spells and becoming warm again. Perhaps an isolated shower developing in the east and north later in the afternoon.
Tonight : Dry with clear spells, although becoming cloudier in the northwest later. Cold under the clear skies with rural grass frost, and a few fog patches, more especially in eastern England.
Thursday : Again mostly dry and warm with sunny spells for many although cloudier than of late in the northwest. A few well scattered showers possible, most likely northeastern England and Scotland.
Outlook for Friday to Sunday : Mostly settled with warm sunny spells each day, but cooler near coasts and overnight. Far north cloudier with light rain at times. Some fog patches for north and east coasts.
Met Office UK long-range forecast
Sunday, March 27 to Tuesday, April 5: It will be largely dry for most, especially in the south and west, though some showers, possibly wintry, are likely in the north and east.
Nights will be chilly with some frost and early rural mist and fog patches will readily clear each morning. Cloudier conditions will persist in the far north with some light rain or drizzle at times, and patchy mist, fog and low cloud may impact the North Sea coasts.
Winds will be light for most but breeziest in the far north and extreme southwest. Daytime temperatures are likely to be above average at first, when it will feel warm in the prolonged spring sunshine, but will decline slowly through the period, with a low chance of significantly colder weather spreading from the north for a time.
