Archived Clear Sky Chart Images
for Heartwood Observatory, (ON)

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.

February
Mon	Tue	Wed	Thu	Fri	Sat	Sun
		19 11:00 12:00	20 00:00 11:00 12:00 +2 charts from previous days	21 19:00 +5 charts from previous days	22 00:00 16:00 +6 charts from previous days	23 00:00 16:00 +8 charts from previous days
24 00:00 00:00 16:00 +10 charts from previous days	25 00:00 11:00 +13 charts from previous days	26 00:00 11:00 12:00 +15 charts from previous days	27 00:00 16:00 23:00 +16 charts from previous days	28 11:00 +16 charts from previous days
March
Mon	Tue	Wed	Thu	Fri	Sat	Sun
					1 00:00 12:00 23:00 +16 charts from previous days	2 12:00 16:00 23:00 +17 charts from previous days
3 16:00 +18 charts from previous days	4 00:00 16:00 +16 charts from previous days	5 00:00 11:00 12:00 +16 charts from previous days	6 00:00 16:00 +16 charts from previous days	7 00:00 16:00 +16 charts from previous days	8 00:00 11:00 12:00 +16 charts from previous days	9 00:00 04:00 17:00 +17 charts from previous days
10 01:00 17:00 +17 charts from previous days	11 01:00 17:00 +17 charts from previous days	12 01:00 12:00 13:00 +17 charts from previous days	13 01:00 12:00 +17 charts from previous days	14 01:00 13:00 +17 charts from previous days	15 01:00 13:00 +17 charts from previous days	16 01:00 17:00 +16 charts from previous days
17 01:00 17:00 +15 charts from previous days	18 01:00 17:00 +15 charts from previous days	19 01:00 17:00 +15 charts from previous days	20 01:00 17:00 +14 charts from previous days	21 01:00 +14 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.