| 2026-03-28 | 7:30 AM | 0.00 | 0.0 | NA | NA | NA | | |
| 2026-03-26 | 7:25 AM | 0.00 | 0.0 | NA | NA | NA | | |
| 2026-03-25 | 7:30 AM | 0.00 | 0.0 | NA | NA | NA | | |
| 2026-03-24 | 7:00 AM | 0.00 | 0.0 | NA | NA | NA | | |
| 2026-03-23 | 7:30 AM | T | NA | NA | NA | NA | | |
| 2026-03-22 | 7:45 AM | 0.00 | 0.0 | NA | NA | NA | | |
| 2026-03-21 | 7:45 AM | 0.00 | 0.0 | NA | NA | NA | | |
| 2026-03-20 | 7:25 AM | 0.00 | 0.0 | NA | NA | NA | | |
| 2026-03-19 | 7:30 AM | T | T | NA | 0.0 | NA | | early morning flurries on 3/18 |
| 2026-03-18 | 7:30 AM | 0.03 | 0.6 | NA | 1.5 | NA | | |
| 2026-03-17 | 7:10 AM | T | T | NA | 2.0 | NA | | snow flurries |
| 2026-03-16 | 7:20 AM | 2.07 | 2.2 | NA | 2.5 | NA | | Heavy rain transitioned to sleet and snow |
| 2026-03-15 | 7:15 AM | 0.01 | NA | NA | NA | NA | | |
| 2026-03-14 | 7:00 AM | 0.00 | 0.0 | NA | NA | NA | | |
| 2026-03-13 | 8:00 AM | 0.03 | NA | NA | NA | NA | | |
| 2026-03-12 | 7:30 AM | 0.11 | T | NA | 0.0 | NA | | Rain transitioned to snow that quickly melted |
| 2026-03-11 | 7:40 AM | 1.31 | NA | NA | NA | NA | | Heavy evening and overnight thunderstorms. |
| 2026-03-10 | 7:30 AM | 0.00 | 0.0 | NA | NA | NA | | |
| 2026-03-09 | 7:20 AM | 0.00 | 0.0 | NA | NA | NA | | |
| 2026-03-08 | 7:30 AM | 0.01 | NA | NA | NA | NA | | |
| 2026-03-07 | 7:35 AM | 0.88 | NA | NA | NA | NA | | |
| 2026-03-06 | 7:20 AM | 0.01 | NA | NA | NA | NA | | |
| 2026-03-05 | 7:30 AM | 0.25 | NA | NA | NA | NA | | |
| 2026-03-04 | 7:25 AM | 0.00 | 0.0 | NA | NA | NA | | |
| 2026-03-03 | 6:35 AM | T | NA | NA | NA | NA | | |
| 2026-03-02 | 7:00 AM | 0.00 | 0.0 | NA | NA | NA | | |
| 2026-03-01 | 7:05 AM | 0.00 | 0.0 | NA | NA | NA | | |
| 2026-02-28 | 7:05 AM | 0.00 | 0.0 | NA | 0.0 | NA | | |
| 2026-02-27 | 7:00 AM | 0.00 | 0.0 | NA | NA | NA | | |
| 2026-02-26 | 7:05 AM | 0.00 | 0.0 | NA | 0.0 | NA | | |
| 2026-02-25 | 7:30 AM | 0.00 | 0.0 | NA | 0.0 | NA | | An evening snow shower observed near The Morton Arboretum, which is about 4 miles to the south. |
| 2026-02-24 | 7:35 AM | 0.00 | 0.0 | NA | NA | NA | | |
| 2026-02-23 | 7:25 AM | T | T | NA | T | NA | | Sporadic flurries |
| 2026-02-22 | 7:15 AM | 0.01 | 0.1 | NA | 0.1 | NA | | Flurries |
| 2026-02-21 | 7:30 AM | T | T | NA | 0.0 | NA | | |
| 2026-02-20 | 7:40 AM | 0.06 | T | NA | T | NA | | Mostly rain, with a very light dusting of snow pellets |
| 2026-02-19 | 7:10 AM | 0.00 | 0.0 | NA | 0.0 | NA | | |
| 2026-02-18 | 6:50 AM | 0.04 | 0.0 | NA | 0.0 | NA | | Abnormally warm |
| 2026-02-17 | 6:35 AM | 0.00 | 0.0 | NA | 0.0 | NA | | |
| 2026-02-16 | 7:20 AM | 0.00 | 0.0 | NA | NA | NA | | |
| 2026-02-15 | 7:40 AM | 0.00 | 0.0 | NA | 0.0 | NA | | |
| 2026-02-14 | 7:30 AM | 0.00 | 0.0 | NA | T | NA | | Small patches of snow in shady spots |
| 2026-02-13 | 7:40 AM | 0.00 | 0.0 | NA | T | NA | | |
| 2026-02-12 | 7:15 AM | 0.00 | 0.0 | NA | T | NA | | |
| 2026-02-11 | 7:20 AM | 0.00 | 0.0 | NA | T | NA | | |
| 2026-02-10 | 7:00 AM | 0.00 | 0.0 | NA | NA | NA | | |
| 2026-02-09 | 7:15 AM | 0.00 | 0.0 | NA | NA | NA | | |
| 2026-02-08 | 7:30 AM | 0.00 | 0.0 | NA | 2.5 | NA | | |
| 2026-02-07 | 7:45 AM | 0.00 | 0.0 | NA | 2.5 | NA | | |
| 2026-02-06 | 7:10 AM | 0.01 | 0.1 | NA | 3.0 | NA | | |
| 2026-02-05 | 7:30 AM | T | T | NA | 3.0 | NA | | snow flurries |
| 2026-02-04 | 7:30 AM | 0.00 | 0.0 | NA | NA | NA | | |
| 2026-02-03 | 7:30 AM | 0.00 | 0.0 | NA | 3.5 | NA | | |
| 2026-02-02 | 7:40 AM | T | T | NA | 3.5 | NA | | dusting of snow |
| 2026-02-01 | 7:05 AM | T | T | NA | 3.5 | NA | | a few snow flurries |
| 2026-01-29 | 7:10 AM | 0.00 | 0.0 | NA | NA | NA | | |
| 2026-01-28 | 7:25 AM | 0.00 | 0.0 | NA | 3.0 | NA | | |
| 2026-01-27 | 7:25 AM | 0.00 | 0.0 | NA | 3.0 | NA | | |
| 2026-01-26 | 7:40 AM | 0.03 | 0.8 | NA | 3.5 | NA | | |
| 2026-01-25 | 7:40 AM | 0.10 | 1.1 | NA | 3.0 | NA | | Light snowfall, nice and gentle |
| 2026-01-24 | 7:40 AM | 0.00 | 0.0 | NA | NA | NA | | |
| 2026-01-23 | 7:20 AM | 0.00 | 0.0 | NA | NA | NA | | |
| 2026-01-22 | 7:20 AM | T | 0.1 | NA | 2.0 | NA | | |
| 2026-01-21 | 7:00 AM | T | T | NA | 2.0 | NA | | |
| 2026-01-20 | 9:30 AM | 0.00 | 0.0 | NA | 2.0 | NA | | |
| 2026-01-19 | 11:45 AM | 0.05 | 1.1 | NA | 2.5 | NA | | |
| 2026-01-18 | 7:00 AM | 0.01 | 0.2 | NA | 1.5 | NA | | |
| 2026-01-17 | 7:20 AM | 0.02 | T | NA | 1.0 | NA | | |
| 2026-01-16 | 7:25 AM | 0.02 | 1.3 | NA | 2.0 | NA | | Light snow falling |
| 2026-01-15 | 7:45 AM | 0.06 | 1.0 | NA | 1.5 | NA | | |
| 2026-01-14 | 7:30 AM | 0.03 | 0.5 | NA | 0.5 | NA | | Snow shower in progress. Breezy. |
| 2026-01-13 | 6:35 AM | 0.00 | 0.0 | NA | 0.0 | NA | | |
| 2026-01-12 | 7:20 AM | T | T | NA | T | NA | | snow flurries |
| 2026-01-11 | 7:30 AM | 0.05 | 0.2 | NA | T | NA | | |
| 2026-01-10 | 8:00 AM | 0.15 | NA | NA | NA | NA | | |
| 2026-01-07 | 6:50 AM | T | NA | NA | 0.0 | NA | | |
| 2026-01-06 | 7:00 AM | 0.00 | 0.0 | NA | T | NA | | |
| 2026-01-05 | 7:20 AM | 0.00 | 0.0 | NA | 1.0 | NA | | |
| 2026-01-04 | 7:45 AM | 0.00 | 0.0 | NA | 1.5 | NA | | |
| 2026-01-03 | 7:50 AM | 0.00 | 0.0 | NA | 1.5 | NA | | |
| 2026-01-02 | 7:30 AM | 0.00 | 0.0 | NA | 1.5 | NA | | |
| 2026-01-01 | 7:00 AM | 0.04 | T | NA | 2.0 | NA | | Snowboard snow turned to ice. |