I’ve been looking at the Met Office DataPoint service today. I’m not sure if I’ll do anything with it but I can get text forecasts for regions and other areas such as national parks for it. eg. here’s a bit for East of England from this evening on.

createdOn="2023-07-28T13:40:24" issuedAt="2023-07-28T16:00:00" regionId="ee”
day1to2
Headline: Dry to begin with locally heavy and showery rain overnight.
This Evening and Tonight: A predominately dry evening across the region with isolated showers possible. Cloud increasing through the night as a band of locally heavy and showery rain pushes up from the southwest, affecting most areas through the early hours. Remaining mild. Minimum Temperature 16C.
Saturday: Overnight rain will clear quickly eastwards through early morning, followed by a mixture of sunshine and showers. Turning drier and brighter later in the afternoon and through the evening. Mild. Maximum Temperature 23C.

I can get daily and 3 hourly forecasts from it as well as hourly observations for a 24hr period. These come in xml and json formats I’ve written some php code to get the json output into something readable. eg. Here’s a snippet from a 3hrly forecast for Cromer:

Forecast for CROMER dated 2023-07-28T18:00:00Z
2023-07-28Z
21:00
Wind Direction: S
Feels Like Temperature: 19C
Wind Gust: 18mph
Screen Relative Humidity: 78%
Precipitation Probability: 6%
Wind Speed: 9mph
Temperature: 19C
Visibility: Good - Between 10-20 km
Weather Type: Cloudy
Max UV Index: 0

There are some 500x500 overlay images for things like rainfall and pressure but I can’t see what to do with them. I suppose it might help if I could find a base map to try to put them on.