You should not keep driving your Jeep on a bad wheel bearing. A failing bearing can seize suddenly, causing the wheel to wobble severely or even lock up while you're driving, which is dangerous at any speed. Get it inspected and repaired as soon as you notice the noise or vibration.
A wheel bearing supports the entire weight of that corner of your Jeep while also letting the wheel spin freely. When it wears out, metal components inside start grinding against each other, and that wear speeds up quickly once it starts. What might have been a manageable repair at the first sign of noise can turn into a much bigger problem within a short drive, since a failing bearing can allow the wheel to separate from the hub or lock in place without warning.
In the short term, a bad bearing you catch early and drive gently and briefly to a repair shop is a different situation than continuing to drive on it for days or weeks. The risk grows the longer you wait and the faster or farther you drive. Highway speeds put more stress on a worn bearing than slow neighborhood driving, so a noise you can tolerate around town might become a real hazard once you're doing 70 miles an hour on I-94.
If you need to get your Jeep repaired and the noise is still mild, keeping your speed down and avoiding longer highway stretches around Ann Arbor can reduce the risk in the meantime. That's a short-term precaution, though, not a reason to put off the repair itself. The safest plan is always getting it looked at as soon as you can arrange it, rather than deciding day by day whether it still sounds okay to drive.
If your Jeep is making that telltale humming or growling sound, the safest move is to get it looked at right away rather than waiting to see how long it holds on. Hoover Street Auto Repair in Ann Arbor can quickly get your Jeep on a lift, confirm whether it's safe to drive further, and take care of the repair before a manageable issue turns into a roadside breakdown.