If in Chicago, rain or cloudy skies may prevent you from seeing the Harvest Moon Oct. 5, but if you are elsewhere in the Northern Hemisphere you should be able to see what looks like a large, orangey-toned impressive orb. (The moon also looked impressive Chicago Oct. 4 when the weather cleared).
It’s dubbed the Harvest Moon because it is the full moon closest to the autumn equinox when farmers enjoy more moonlight to finish harvesting their crops.
That’s because even though the moon typically rises 50 minutes later each fall and winter day, the moon’s orbital path is narrower in the Northern Hemisphere near the autumn equinox. That orbit makes it rise only about 35 minutes later each day.
BTW, the orange color is noticed when seeing the moon through the Earth’s atmosphere near the horizon. The moon also looks larger from that angle.
For more info please visit Earth Sky or Almanac or Science NASA.