Tracked live by the FAA, but its flight plan was first seen after takeoff, so we don't know the scheduled time and can't say whether it's late.

ENVOY · FLIGHT MQ 4104 LANDED 11:50 AM CT, ~14 MIN LATE · SCHEDULED TIME UNKNOWN

MQ 4104 · ROC → ORD

took off 11:32 AM ET · landed 11:50 AM CT (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 10h after departure

Odds over time

Arrive at ORD more than 15 minutes late?
44% chance · ±0 pts +22 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 15% 30% 45% 60% 21h 12h 6h Departs Lands