Local Weather for the Observatory, Current and Historical
The current weather forecast for the Pinto Valley Observatory from Weather.com.
Current Radar Map Southern California
Current Satellite Map for the US
Clear Sky Clock website for the Pinto Valley Observatory
This site shows when it will be cloudy or clear for up to the next two days. It's a prediction of when the given site will have good weather for astronomical observing.
The following websites is a historical look of the weather for the region collected from a site about 20 miles away and about 1200 feet lower then the Pinto Valley Observatory. You would expect that the Observatory temperatures would be about 5 degrees cooler then the information shown here.
The following website is a historical look at the weather for the region collected from a site about "n" miles away from the Pinto Valley Observatory Site.
Other weather websites for observing sites near Southern California
Not really relevant data for Pinto Valley, but a great site to see what the skies are like up above Mt Wilson, Ca.