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 4217 SCHEDULED · SCHEDULED TIME UNKNOWN
Yesterday

MQ 4217 · ORD → MSN

departs 9:01 PM CT · arrives 9:30 PM CT
Forecast issued Wed 10:00 PM ET · 0h before departure

Odds over time

Arrive at MSN more than 15 minutes late?
54% chance · ±4 pts +1 pt · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 25% 50% 75% 100% 1.0d 12h 6h Departs