Querying Yahoo weather is limited to 2,000 queries/day.
Is it correct to assert that each http binding call {http="<[https://query.yahooapis.com/v1/public/yql?q=select+*+from+weather.forecast...
counts as one request?
Is there a way to extract more than one value and store it in variables? = more values with one call?
Use the caching feature of the HTTP binding to only retrieve at a fixed update interval, but multiple items can refer to the cached response without causing duplicate queries.