Forecast for a meltdown: temperature pushing 100 degrees, no cloud cover, zero percent chance of rain, all day in the sun, tired feet, fighting crowds, and realizing someone already got those half-price shoes you had your eye on.

Is there an antidote?

Something cold is a good start.

Here’s a list of some of Massachusetts Street’s best heat-beating treats for today’s sidewalk sale. There’s at least one for every block, so you have options no matter where you are when you feel a meltdown coming on.

Bonus: Most are even portable so there’s no need to stop shopping. Except maybe to recover from brain freeze.

600 block

Downtown visitor Annie Hamilton, 5, of Overland Park, holds a frozen, chocolate-dipped banana from Rocky Mountain Chocolate Factory/Cold Stone Creamery, 647 Massachusetts St.

Frozen banana at Rocky Mountain Chocolate Factory/Cold Stone Creamery, 647 Massachusetts St.

A whole frozen banana in a thick — and also frozen — chocolate shell. This treat comes on a stick, making it appropriate for eating-while-walking. (Warning: The banana is top-heavy and the stick spindly, so save that plastic bag to help get a better grip. Ours broke and fell on the sidewalk right after we took the photo. Don’t let this happen to you!)

Backup: Iced Snow Tiger at La Prima Tazza, 638 Massachusetts St. Double-strong cold-filtered coffee with white chocolate and half-and-half — the caffeine and cold-sounding name should help if you’re hitting a wall.

700 block

Tiger's Blood and blue raspberry flavored Hawaiian shaved ices at Mass Street Sweet Shoppe, 727 Massachusetts St. The Sweet Shoppe serves shaved ice in three sizes and 30 flavors.

Shaved ice at Mass Street Sweet Shoppe, 727 Massachusetts St.

The Hawaiian shaved ice at Mass Street Sweet Shoppe is the real stuff. Unlike a simple snow cone, it’s made with a machine that shaves the ice from a single block for a fluffier result. Choose from three sizes and 30 colorful flavors.

Backup: Coconut water at Cosmos Indian Store, 734 Massachusetts St. It has electrolytes.

800 block

The Siberian, one of the featured adult milkshakes at the Burger Stand, 803 Massachusetts St. The shake is made with Kahlua, chocolate vodka and vanilla ice cream.

Adult milkshakes at the Burger Stand, 803 Massachusetts St.

First the bad news: You can’t get these to go. The good news: The reason for that is because they contain alcohol. Right now Burger Stand’s featured shakes are The Siberian (Kahlua, chocolate vodka, vanilla ice cream) and the Ice Cream Alexander (brandy, creme de cacao, vanilla ice cream, nutmeg). The bartender can also whip up a concoction with your choice of liquor.

General manager Chris Hoffman warns that large amounts of alcohol and dairy don’t always make for happy tummies, so these concoctions are best in moderation.

“We don’t recommend more than two,” he says.

Burger Stand also makes all-ages shakes, which use Iwig Family Dairy milk in lieu of booze.

Backup: Self-serve frozen yogurt at TCBY, 845 Massachusetts St. There’s a lot of flavors and a lot of toppings — go crazy.

900 block

European pop at Au Marché, 931 Massachusetts St., and Brits, 929 Massachusetts St.

Somehow, a bottle of soda from Europe seems so much more chic. Au Marché and Brits have coolers with a variety of imports, including citrus-flavored San Pellegrino and Almdudler Lemon Herb Soda at Au Marché and elderflower spring water and a variety of ginger beers at Brits.

Backup: Italian Cream Soda at Minsky’s Pizza, 934 Massachusetts St. Choose from strawberry, raspberry, cherry, kiwi or vanilla. For a skinny version, have them hold the cream.

1000 block

Black Bubble Tea (strawberry flavored) from Encore Cafe, 1007 Massachusetts St. Encore has more bubble tea flavors plus fresh fruit smoothies.

Bubble tea at Encore Cafe, 1007 Massachusetts St.

Asian bubble tea is like a refreshing drink and a snack in one. It’s served with a big, fat straw for sucking up the little black tapioca balls along with the tea. Choose black or green tea, then your favorite flavor — there’s everything from taro to lychee, with milk or without.

Backup: A waffle cone with a scoop (or two) from Sylas and Maddy’s Home Made Ice Cream, 1014 Massachusetts St. A downtown Lawrence classic.

1100 block

Khus-Root Sherbat, Curry in a Hurry, 1111 Massachusetts St.

This chilled emerald-green drink is made from the root of the khus plant, an aromatic grass that’s native to India and known for its cooling and soothing properties. The drink tastes minty, vegetable root-y and sweet all at the same time.

Backup: If khus root sounds too exotic for you, grab a Mango Lassi or cold Masala Chai instead. Curry in a Hurry has all three.