Archived Clear Sky Chart Images
for McDonald Observatory, (TX)

A Sponsored Feature

Each day lists the local time, hh:mm in 24h time, that is the starting hour of a past clear sky chart. Each clear sky chart forecasts a few days into the future. There are at least two clear sky chart updates per day. So there are multiple overlapping forecasts for each day.

July
Mon	Tue	Wed	Thu	Fri	Sat	Sun
25 06:00 11:00 13:00	26 +3 charts from previous days	27 +3 charts from previous days	28 +3 charts from previous days	29 No Data	30 No Data	31 No Data

Instead of the last few past clear sky chart images, some people prefer long-term averages of forecasts. See the Forecast History/Climate page.