<image> Maomao plotted the indoor temperature changes into the following statistical chart.

(1) Maomao measured the temperature every (___) hours, and the highest temperature of the day was (___) degrees.
(2) On this day, the temperature rose from (___) hours to (___) hours, with the fastest increase between (___) hours and (___) hours.
(3) On this day, the temperature dropped from (___) hours to (___) hours, and the expected temperature at 17:00 is approximately (___) degrees.