It might snow Wednesday. View Full Caption Shutterstock

CHICAGO — Chicago might have its first snowfall of the season Wednesday morning, forecasters say.

Rain and snow showers are possible before 8 a.m. Then the forecast shifts to just rain in the afternoon, said National Weather Service meteorologist Amy Seeley.

If there is snow, it isn't expected to stick, Seeley said, noting that in past years the first snowfall came earlier in the year.

Still, this comes just days after Chicago saw an 81-degree high on Friday, 79 on Saturday and 72 on Sunday.

The high on Wednesday is expected to top out at 49 degrees. Thursday is supposed to be warmer and drier, with a high of 58.

Friday is expected to be cooler again with a high near 48. Rain showers are possible at night and through early Saturday morning, when it might be cold enough for snow showers.

The average date of the season's first snowfall is Oct. 30, according to the National Weather Service, which has been tracking snowfall since 1886.

The earliest Chicago has ever gotten trace amounts of snow was Sept. 25, 1942. The earliest we've ever gotten a measurable amount (.01 of an inch or more) was Oct. 12, 2006.

And the earliest the city's ever gotten an inch or more was Oct. 19, 1989, when 3.8 inches fell.