This is good Shorpy, the kind of thing that keeps us coming back again and again.

Could this picture have been actually taken on Nov. 28, 1905? According to NOAA data the daily highs were:

Nov. 27, 1905: 43 F
Nov. 28, 1905: 69 F
Nov. 29, 1905: 42 F

Source:
http://w2.weather.gov/climate/xmacis.php?wfo=lot

The very modern looking building on the right (as rivlax describes it) is the Republic Building at 209 S. State Street, designed by Holabird and Roche and completed in 1905. It is shown here in its original 12-story height; it was raised to 19 stories in 1909. Unfortunately this very handsome structure was demolished in 1961, to make way for the Home Federal Savings and Loan Building.

In the background can be seen the back end of Louis Sullivan's famous Carson Pirie Scott store, with its original cornice. I do not know the building on the right, but it has the typical "Chicago windows" found in so many buildings there at that time.

This unusual November street crowd is what brought the photographer out from behind his cozy steam radiator. A freaky one-day excursion to 69F brought the public out in droves. It is a Monday, a busy work and shopping day in Chicago. The next day would see a more typical 42F high, falling to well below freezing in the evening.

[Source? -tterrace]

Can the newspaper the boy in the lower-left is selling be enlarged? Seems to have a large headline proclaiming some kind of scandal or disaster! Inquiring minds would like to know.

UPDATE: Hmmm, almost looks like he's selling two different papers? I can almost-maybe make out the one in his right hand being a copy of the Chicago American. But the ones tucked under his arm can't be the "other side" of that paper if the "crease" is just under his arm, and I don't think it's part of the same headline "MURDER WIT... it looks like a different paper. Thanks for the blowup!

but jewelry stores too. Including the famous C.D. Peacock, which started in Chicago in 1837. That store is at the south end of the same block where the Palmer House is located.

Must have been a very nice fall that year since the streets and sidewalks on this Monday after Thanksgiving seem clear of any sort of winter precipitation and folks don't seem to be overly dressed.

Looks like she may have just come from the Turner Hat Bleachery.

Besides its own trailer in the middle, that 63rd St. cable car is also towing an Archer Ave. electric trolley car.

I don't think this is November in Chicago. It looks way too warm! The guys have on straw hats and the ladies have on their light white blouses. Not the Novembers I remember there!

What is this?

[Woman wearing a veiled hat. -tterrace]

That tall building on the right looks amazingly modern.

Gunther's job is to generate customers for all those dentists.

Can anyone read the poster behind the street car? The top line appears to say "Automobiles". It appears in front of the Independent Drug Co. storefront.

Gunther's Famous Candies founder was a German immigrant, businessman,politician and collector of Civil War Memorabilia. His collection is now housed at the Chicago Historical Society and includes the bed Lincoln died on and the table used by Lee and Grant to sign the surrender. More info here.