While weather prediction markets are not uncommon, predicting the exact highest temperature at a specific non-US city's airport (Buenos Aires) on a given day is a relatively niche and specific topic.

There is a significant divergence. The prediction market currently prices the '69°F or below' option at 43c (implying a 43% probability), whereas mainstream weather services like Wunderground confidently forecast a high of only 66-67°F [3]. The market has not fully priced in the latest cool weather forecast.

The rules contain significant caveats: normal replies do not count (which make up the majority of Musk's activity), but main-feed replies do. Deleted posts count if kept for >5 minutes. Furthermore, resolution heavily relies on a specific custom tracker, which may yield vastly different totals compared to a user's manual count on X.

Betting on the exact number of tweets a public figure makes in a specific week is a highly niche and entertainment-driven market. Ordinary people do not ponder the exact statistical count of such trivial daily activities, making it a classic novelty prediction market.

Predicting the exact daily high temperature for a specific city is uncommon in everyday public discourse, but it is a relatively established and standard weather derivative in prediction markets, giving it a moderate novelty factor.