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Chicago Area Mensa Presents . . .

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This site will be updated with the latest information as it becomes available. Preregistration is now closed. Come to WeeM and register at the door. M‑Letter and Program Book are now available. You had a great time in years past, and this year promises to be more memorable than ever.
See All the Rates. Volunteer today!

  • Join us for four days of RG fun where the cool smart people party — including everything you expect from WeeM ... and even more!
  • Multiple tracks of programs to keep you intellectually stimulated
  • An RG on the grandest scale, with over 500 attendees
  • Lavish and plentiful hospitality with lots of room to socialize & chill
  • Huge game room and tournament offerings
  • Thursday Off-Site Excursions
  • Annual favorites like the pun-tastic Friday night costume contest and Saturday night Pretentious Drinking & Epicurean Experience events
  • Dance (usually Friday and Saturday night)
  • And … an excellent hotel!

Preregistration is now closed. Come to WeeM and, if you haven't preregistered, please register at the door. If you preregistered but your payment was not received by October 12th, no discounts for which you may have qualified will be honored and you must pay the at the door rate.

Join us at WeeM! There’s no RG like this! Stimulate both your mind and senses.

Come to WeeM to have fun with over 500 fellow Mensans and their guests. Play games, attend seminars, dance, talk, eat, drink, volunteer, and laugh. Check out the photos to see what happened in past years. Once you come to WeeM, you'll be under its magical spell, returning every year. WeeM is so special, you'll want to make the trip — some cross the ocean just to be here!

Enjoy rousing debates and thought-proving points of view at the 43rd HalloweeM! Although online registration is closed, you can still come to WeeM and register at the door.

The links at the left, and throughout this page, will take you to general information about HalloweeM and specific information (as it becomes available) about this year's gathering – WeeM registration, hotel reservations, programs, and much more. Return often to see what's new or join our WeeM-Notify mailing list to get e‑mail updates (no more than one a month, except in October).


Excursions are planned for Thursday afternoon (no one wants to miss the fun at the hotel on Friday). Take a Candy Tour at the Long Grove Confectionery, explore a Distillery, or enjoy the Intro to Middle Eastern Food at the Pita Inn. Our coördinator can also provide you with information for a self-guided walking tour if you wish to venture into the city. Our Excursion page includes places you can explore on your own as well.

Our Hotel

We continue to be excited about the venue. The Westin Chicago North Shore Hotel in Wheeling has a lot to offer. It hosts other events we know of with comparable size and similar people, and we have worked with some of their senior staff as well as the people behind the scenes who do an amazing job helping us volunteers to keep things running smoothly. Problems with reservations may be forwarded to The Hotel Liaison../images/email-regular.s.gif for timely resolution.

Too Much TV is Bad for the Children So …

Bring the kids! Chicago has been working with several dedicated volunteers to create a kids' track at our functions. We've ironed out the details during our Monthly Business Meetings during the year and are pleased to offer you and your kids a wide variety of activities throughout the WeeM weekend. Babysitting will be offered during certain events, and WeeM speakers will deliver programs tailored for the kids.

Fun, Educational, Intriguing

A plethora of programs is being offered, as in in years past. This year you can expect to see some repeats of popular programs and new ones as well. As usual, you will not be disappointed, other than trying to decide which program you'd prefer to see and which ones you'll have to miss because there are too many great ones going on at the same time.

The Stars of Our Show Are Our Volunteers … Why Not Join the Cast?

You may not see them, but you see what they do. Volunteers are the caretakers of our amazing, four-day event! They earn collectible WeeM pins and entries into the Volunteers' Raffle — double entries for wee hours. They are adored by WeeM ghosts and goblins, and are protected from evil spells, bad casting directors, etc. So why not volunteer now? Peruse the PAAG to figure out which programs you’d want to attend when figuring out your volunteer schedule.

Get Some Bling & Help The Economy!

Check out the Shopping offerings that you can can expect at WeeM, including WeeM logo items you can order now, and our annual book sale to benefit Curt’s Café, which improves outcomes for young adults living in at-risk situations through work- and life-skills training. Bring your own books that are just taking up room and collecting dust, and allow us to sell them for this charitable cause.

That Newfangled Social Media

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Program Book


  • Registration - The deadline (October 12th) for advanced registration has expired. Join the fun at WeeM and register at the door if you haven’t preregistered.
  • Excursions - The sign-up deadline for the Excursions was October 19th.
  • Vendor space - The deadline to submit the contract was October 12th.
  • Lodging - The deadline (October 7th) for the WeeM rate has expired.
  • Volunteer Now! Get involved and become a star. We have a great WeeM every year due to the many of you who sign up to help out for a few hours or more.
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