The latest addition to the Weather page is a chart that shows the real-time weather conditions at the observatory. How cold is it right now? Is the humidity less than 10% (where did I put that bottle of moisturizing cream?). Well, just take a look to see.
The chart shows the last 24 hours of the weather conditions. That makes it easy to see highs, lows and trends. New data scrolls in from the right side and the oldest data drops off the at the left.
An Acurite 5-In-1 weather station is the source of the data. The Acurite display feeds a Raspberry Pi computer, which then generates the chart and uploads it to the web page.