In order to observe during our stargazing events at Caltech, we need the skies to be mostly free of clouds and with good transparency. You can see the current conditions as well as the forecasted conditions below. On average, we are able to observe 90% of the time.

Current Images of Skies over Pasadena

this is image #1
Altadena facing South to Caltech

Weather Forecast for Caltech

Sky Forecast for Caltech