If you search for "weather uk" in Google's news tab, the top-three result fields look fishy. The only non-tabloid newspaper appearing there is The Independent:
There no highly-acclaimed newspapers, or reputable weather channels appearing at the top.
Scrolling further down, and visiting other pages, it becomes clear that The Daily Express tabloid is dominating the results.
It appears in the first 4+ pages almost exclusively:
This continues page after page.
Now, that's for just a simple, generic query like "weather uk".
However, with many other search queries that I've tried — political, social, economic, etc., they also not only rank first, but dominate the SERPs below on the first page:
I doubt that they are gaming it. The Express, regardless of its objective merits or lack thereof, is one of the UK’s most popular newspapers. And it’s notorious for publishing lots of weather stories based on dodgy long-term forecasts from publicity-seeking pseudo-meteorologists, because those (along with equally dodgy stories about house prices and things that cause/prevent cancer) are what sell newspapers to its target audience. And so it’s not surprising that it should perform well on searches for UK weather.