Actually, I take back what I said about tonight. Another lake enhanced OFB is rapidly pushing SW across NE Illinois once again. PWK went from 88 to 79, and falling.
Tomorrow night though should be golden, as you mentioned.
Likely will stay in the upper 70's tonight.
If not for the activity this morning, likely would have broke the record for today... Record is 74 (1959) and low was 72. Record high min temp for tomorrow is 77 (1973), which I'd guess the low ends up fairly close to that.
91 ORD. What a rally.
Clouds cleared just in time, as the boundary slowed as it crossed the airport. In this case, also a big help that the ASOS is at the furthest SW point of the airport.
It’s still early obviously... But given that activity last night/this morning made it well south into NE IL and the final cluster of activity around MKE is kicking out another OFB...90+ is unlikely across the metro. Might struggle to even get mid-upper 80’s. .