We enjoyed some lovely weather over the weekend.
Aberporth in Ceredigion was the sunniest place in the UK on Sunday with nearly 10 hours of sunshine.
Eglwyswen in Pembrokeshire was warmest with a high of 17 Celsius, 63 Fahrenheit.
Of course, it's a different story today with cloud, mist and hill fog and a little light rain and drizzle as well.
Some poor visibility is likely too, especially on higher ground, and the Met Office has issued a warning of fog.
The next few days will continue mild and mostly cloudy with mist and hill fog but Friday will bring a big change.
A cold front will move south introducing much clearer and colder air from the Arctic.
Temperatures will drop sharply with some frost but despite the chill in the air we can look forward to much brighter skies and sunshine later in the week.