A much cooler period begins on Thursday and will last until mid-March. A system that could accumulate snow will move in Thursday evening.
THIS WAS CHICAGO’S 14TH WORST START TO A YEAR SINCE 1871 (153 YEARS) UNTIL MARCH 7
CHICAGO HAS SIXTH WARMEST START OF YEAR THROUGH MARCH 7, 2023

SUNSHINE HELPS MARCH AVERAGE CLOSER TO NORMAL ON TUESDAY

DAILY MAXIMUM TEMPERATURES ARE FORECASTED TO REMAIN BELOW NORMAL THROUGH THE MIDDLE OF THE MONTH
Actual, forecast and normal maximum temperatures
O’Hare Airport March 1-15

HIGH TO LOWER 48 EXCEPT IN THE DESERT SOUTHWEST, EXPECTED BELOW-NORMAL TEMPERATURES THROUGH THE MIDDLE OF THE MONTH
Air temperature is forecast for 6-10 days — from Monday, March 13 to Friday, March 17

SNOW WILL FALL IN CHICAGO THURSDAY NIGHT AND EARLY FRIDAY, SOUTHERN AND SOUTHWESTERN NORTHEASTERN ILLINOIS WITH A POSSIBLE GENERAL STORM
Thunderstorms are expected Thursday morning through Friday morning

A WINTER STORM WILL DEVELOP NORTHWEST OF CHICAGO THURSDAY AND THURSDAY EVENING

WINTER STORM THREATS TO BRING SEVERAL INCHES OF SNOW TO UPPER MIDWEST, INCLUDING PARTS OF CHICAGO AREA
This covers the period from Wednesday March 8th to Saturday March 11th – the snow in Chicago is expected to be gone by midday on Friday

2022-2023 CHICAGO SNOW RECORD: ONLY HALF OF TYPICAL AMOUNT THROUGH MARCH 7

https://wgntv.com/weather/weather-blog/warm-wet-start-to-2023-has-continued-through-the-first-week-of-march/