This was taken over 2 nights last week during the heat wave. The Planewave temperature sensors said it was 31.5C at 1am in the morning.
It seems the seeing was quite good though.
I also had a fan going on the floor of the observatory. Perhaps it helps as I have read it is supposed to reduce star sizes.
Taken at my home observatory.
LRGB 120 50 50 50, Proline 16803, Astrodon Gen 11 filters, Paramount ME, ST402ME guide cam on a MMOAG.
http://upload.pbase.com/image/132352670
http://upload.pbase.com/gregbradley/image/132352722 crop
Greg.