How Long to Cook Roast Beef to Perfection in a Weber Q Grill

Roast beef is a classic main dish that’s perfect for backyard barbecues and gatherings with family and friends. When cooked properly on a Weber Q grill, roast beef can turn out incredibly tender, juicy and packed with smoky, char-grilled flavor. But to achieve roast beef success on your Weber Q, it’s important to know exactly how long to cook it.

In this detailed guide, I’ll provide timing guidelines, tips and tricks to help you perfectly roast beef on your Weber Q every time. Whether you’re cooking a large roast for a crowd or smaller individual portions, you’ll learn the ideal cooking times and temperatures for your Weber Q model. Let’s get grilling!

Factors That Affect Roast Beef Cooking Time

There are a few key factors that impact how long it takes to cook roast beef on a Weber Q grill:

  • Size and thickness of the roast Larger, thicker roasts need more time to cook through without burning the exterior

  • Type of Weber Q grill: The smaller Weber Q 1000 takes less time than the larger Q 2200 or Q 3200 grills.

  • Cut of beef Tenderloin cooks fastest while roasts like chuck or rump take longer,

  • Bone-in or boneless: Bone-in roasts cook more slowly.

  • Temperature control: Maintaining an even, medium heat is ideal for roasting.

  • Desired doneness: Rare roast beef cooks quicker than one cooked to medium or well-done.

Now let’s look at specific cooking times for different Weber Q models.

Cooking Times for the Weber Q 1000

The Weber Q 1000 is a compact, portable grill perfect for cooking smaller cuts of meat for 1-2 people. Here are the approximate cook times:

  • 1 lb boneless roast: 30-45 minutes
  • 2 lb boneless roast: 45-60 minutes
  • Bone-in roast: Add 15-20 minutes

Cook times are for medium-rare doneness. Monitor the internal temperature with a meat thermometer for accuracy.

Cooking Times for the Weber Q 2200

The medium-sized Weber Q 2200 can handle roasts for around 4-6 people. Cook times are:

  • 3 lb boneless roast: 60-75 minutes
  • 4 lb boneless roast: 75-90 minutes
  • 5 lb bone-in roast: 100-120 minutes

Use a thermometer and allow extra time if cooking roasts past medium-rare.

Cooking Times for the Weber Q 3200

The largest Weber Q 3200 model can roast big cuts of meat for larger gatherings. Typical cook times are:

  • 5 lb boneless roast: 90 minutes to 2 hours
  • 6-7 lb bone-in roast: 2-2.5 hours
  • 8+ lb extra large roast: Up to 3 hours

Monitor temperature closely and rotate roasts for even cooking.

Tips for Cooking Times

Keep these timing tips in mind for perfect results:

  • Bring roast to room temp before grilling for faster cooking.

  • Preheat grill 10-15 minutes before adding roast.

  • Use residual heat to finish cooking if needed after removing from grill.

  • Allow roast to rest 10-15 minutes before carving to retain juices.

  • Add 5-10 minutes if cooking past medium-rare doneness.

Step-By-Step Method

Follow my foolproof method for grilling roast beef to perfection on your Weber Q:

  1. Prep: Trim excess fat and let roast sit out for 30 minutes to warm up before grilling.

  2. Season: Coat all over with olive oil and generously season with salt, pepper, garlic powder, herbs, etc.

  3. Preheat: Ignite grill and preheat to medium heat, around 350°F. Use two burners for larger cuts.

  4. Add roast: Place seasoned roast over indirect heat, away from burner. Close lid.

  5. Cook: Grill for calculated cook time based on size, cut and desired doneness. Flip halfway.

  6. Check temp: Insert thermometer to monitor doneness. Remove from grill when 10°F below target temp.

  7. Rest: Lightly tent meat with foil and let rest 10-15 minutes before slicing.

  8. Serve: Carve across the grain into thin slices. Enjoy your perfect roast beef!

Common Weber Q Roasting Problems and Fixes

Having trouble getting tender, evenly-cooked results with your roast beef? Here are some common Weber Q roasting issues and how to fix them:

Problem: Roast beef cooked unevenly or burned on outside.

Fix: Maintain an even, medium grill temp. Use two burners and rotate roast periodically.

Problem: Roast beef came out undercooked or tough.

Fix: Let roast sit out to warm up before grilling. Cook for recommended time based on size.

Problem: Roast beef is overcooked and dry.

Fix: Use a meat thermometer to monitor temp. Don’t overcook past medium-rare.

Problem: Roasts take longer than expected to cook through.

Fix: Bring roast to room temp before grilling, preheat grill properly and use residual heat.

Problem: Getting flare-ups from fatty roasts.

Fix: Trim excess fat before grilling. Cook over indirect heat, not directly over flame.

Delicious Roast Beef Recipes for Weber Q Grilling

Once you’ve mastered the roast beef cooking times, try out these tasty recipe ideas in your Weber Q:

  • Santa Maria-style roast beef seasoned with black pepper, garlic and dried herbs.

  • Coffee-crusted roast beef rubbed with a blend of coffee, brown sugar, coriander and cumin.

  • Herb-roasted prime rib slathered in a garlic, rosemary and thyme blend.

  • Mustard and onion roast beef coated in spicy mustard, onion slices and red wine.

  • Keto roast beef and veggies served over a bed of grilled zucchini, peppers, mushrooms, etc.

  • Roast beef fajitas or tacos with sliced meat, peppers, onions and Mexican spices.

Don’t be intimidated by roast beef on the Weber Q – just follow my timing guidelines for perfect results every time. Now get outside and start grilling up some mouthwatering roast beef meals!

Roast Beef on the Weber Q


How long to cook a beef roast in a Weber Q?

Roast the beef over an indirect medium heat in a Weber Premium Grill Rack using a Weber Drip Pan underneath to capture the fat and juices for approximately 1 ½ hours, or until the core temperature reaches 60°C (medium rare). Allow to rest for around 20 minutes before, thinly slicing and serving.

How long to grill a 4 lb roast?

As a rule of thumb, you’ll need to grill your roast for 15 to 20 minutes per pound, depending on your desired doneness.

How long to cook roast beef on Weber rotisserie?

Cook the rib roast: Put the spit on the grill, start the motor spinning, and make sure the drip pan is centered beneath the rib roast. Add the smoking wood to the fire, close the lid, and cook the beef until it reaches your desired temperature in its thickest part, about 2 hours.

How long to cook roast beef in Weber Q?

The cooking time for roast beef in a Weber Q will depend on the size of the roast and your desired level of doneness. As a general rule of thumb, you should allow 20 minutes per pound of meat. To ensure that your roast beef is cooked to perfection, you will need to monitor the internal temperature of the meat using a meat thermometer.

How do you cook beef on a Weber grill?

At the barbecue: Prepare the barbecue for indirect heat, approx. 200°C. Roast the beef over an indirect medium heat in a Weber Premium Grill Rack using a Weber Drip Pan underneath to capture the fat and juices for approximately 1 ½ hours, or until the core temperature reaches 60°C (medium rare).

What temperature should a Weber Q roast be cooked at?

What matters is that you can keep the temperature under 120c (250 °F) to nail a perfect Weber Q roast beef every time. I would love to read in the comments if you guys had success with my method and help others. Prepare your Weber like you would when cooking any roast.

How do you cook a roast on a Weber barbecue?

A roast with potatoes and carrots on a serving plate. When you’re grilling meat on your Weber barbecue, you’re typically exposing it to intense, direct heat. This cooks the meat very quickly and browns it well, but it doesn’t allow a lot of time for heat to penetrate into the interior of the meat.

Leave a Comment