Archived Clear Sky Chart Images
for Hawkeye Observatory, (IL)

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.

October
Mon	Tue	Wed	Thu	Fri	Sat	Sun
				16 13:00	17 01:00 12:00 +1 chart from previous days	18 00:00 02:00 13:00 +3 charts from previous days
19 01:00 13:00 +6 charts from previous days	20 01:00 13:00 +7 charts from previous days	21 02:00 14:00 +7 charts from previous days	22 02:00 13:00 +6 charts from previous days	23 04:00 05:00 13:00 +6 charts from previous days	24 03:00 12:00 +7 charts from previous days	25 01:00 14:00 +7 charts from previous days
26 04:00 12:00 +7 charts from previous days	27 02:00 13:00 +6 charts from previous days	28 04:00 19:00 22:00 +6 charts from previous days	29 03:00 13:00 +7 charts from previous days	30 02:00 13:00 +7 charts from previous days

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