WeatherTotals widget
The WeatherTotals widget displays measured figures for a US state or city in an iframe you can embed anywhere. It is free, needs no key, and uses the same spotter and station observations as the rest of the site.
Preview
Embed code
Copy this snippet and paste it into the HTML of your page.
<iframe src="https://weathertotals.com/embed?modules=aurora,snow&state=colorado&mode=rotate&theme=light" style="border:0;width:300px;height:250px" loading="lazy" title="WeatherTotals"></iframe>
Every widget footer shows a compact link to the matching WeatherTotals page placed beside the notice stating that the government data is public domain; that link must stay visible as a license condition (see the widget terms).
Widget output is licensed under CC BY 4.0, the same license as the API, so any site may embed it free of charge; keep the credit link in the widget footer visible, as that link is the credit the license requires.