Chicagoland, Illinois, United States of America: What to pack, what to wear, and when to go [2018]

Traveling to Chicagoland, Illinois, United States of America? If you're planning to go to Chicagoland, here is some important information about when to go, what to wear, and what to pack:

When to go to Chicagoland, Illinois, United States of America

Based on the climate and weather in Chicagoland, the best time to go is June. See below for details.

What to wear/what to pack for Chicagoland, Illinois, United States of America by month

January

January in Chicagoland is frosty. The average overnight temperatures in the area are in the low 10s F (single digits below 0 C).

What to wear/what to pack:

  • Sweaters
  • Pajamas, such as sweats
  • Very heavy socks
  • Gloves
  • Fleeces
  • Insulated boots
  • Multiple layer jacket shell
  • Thermal undergarments
  • Scarf

February

February in Chicagoland can be extremely cold. Temperatures average in the 30s F (single digits C) during the day.

What to wear/what to pack:

  • Warm pants or jeans
  • Cold weather footwear
  • Gloves or mittens
  • Heavy jacket
  • Heavy socks
  • Sweaters

March

If you are traveling to Chicagoland in March, you will notice that it can be brisk. Daytime temperatures are in the 40s F (single digits C).

What to wear/what to pack:

  • Standard footwear
  • Light gloves or mittens
  • Fleeces
  • Warm pants or jeans
  • Socks
  • Jacket or coat

April

If you visit Chicagoland during April, you are likely to find that it is chilly.

Temperatures tend to hover around the high 50s F (mid 10s C) during the day, while at night they can dip into the low 40s F (single digits C).

What to wear/what to pack:

  • Dresses
  • Long skirts
  • Pants or jeans
  • Long sleeve shirts or blouses
  • Socks
  • Standard footwear
  • Light jacket or fleece

May

If you go to Chicagoland in May, you will notice that it is mild. Daytime temperatures are in the high 60s F (low 10s C).

What to wear/what to pack:

  • Standard footwear
  • Pants or jeans
  • Dresses
  • Long skirts
  • Long sleeve shirts or blouses
  • Socks
  • Light jacket or fleece

June

June in Chicagoland is a perfect temperature. Temperatures average in the high 70s F (mid 20s C) during the day.

What to wear/what to pack:

  • If you're going to the beach, bathing suits, swimwear
  • Dresses
  • Sunscreen lotion
  • Long and short sleeve shirts
  • Shorts or short pants
  • Light footwear
  • Sandals
  • Skirts

July

July for Chicagoland is hot. Temperatures average in the low 80s F (high 20s C) during the day.

What to wear/what to pack:

  • Short sleeve shirts
  • Dresses
  • If you're going to the beach, bathing suits, swimwear
  • Sandals
  • Shorts
  • Sunscreen lotion
  • Sunglasses
  • Skirts

August

If you vacation in Chicagoland during August, you are likely to find that it is hot.

Temperatures tend to hover around the low 80s F (high 20s C) during the day, while at night they can dip into the high 60s F (low 20s C).

What to wear/what to pack:

  • Sunscreen lotion
  • Skirts
  • Long and short sleeve shirts
  • If you're going to the beach, bathing suits, swimwear
  • Sandals
  • Shorts or short pants
  • Light footwear
  • Dresses

September

September here is warm. Temperatures average in the 70s F (mid 20s C) during the day.

What to wear/what to pack:

  • Shorts or short pants
  • Sandals
  • Long and short sleeve shirts
  • Sunscreen lotion
  • Skirts
  • Dresses
  • If you're going to the beach, bathing suits, swimwear
  • Light footwear

October

If you vacation in Chicagoland during October, you are likely to find that it is chilly.

Temperatures tend to hover around the low 60s F (high 10s C) during the day, while at night they can dip into the high 40s F (single digits C).

What to wear/what to pack:

  • Long sleeve shirts or blouses
  • Long skirts
  • Light jacket or fleece
  • Dresses
  • Pants or jeans
  • Standard footwear
  • Socks

November

November can be very chilly. Temperatures average in the high 40s F (single digits C) during the day.

What to wear/what to pack:

  • Socks
  • Fleeces
  • Light gloves or mittens
  • Standard footwear
  • Warm pants or jeans
  • Jacket or coat

December

December in Chicagoland is freezing. Temperatures average in the 30s F (single digits C) during the day.

What to wear/what to pack:

  • Sweaters
  • Cold weather footwear
  • Warm pants or jeans
  • Gloves or mittens
  • Heavy socks
  • Heavy jacket

Year-round what to wear/what to pack for Chicagoland, Illinois, United States of America

Here are some general tips on what to wear in Chicagoland, as well as several items to remember to pack when traveling there.

  • A plug adadpter that supports outlet types A and B
  • A SIM card that works in Chicagoland
  • If you plan to visit a church, make sure to bring appropriate clothing
  • If you are visiting a temple, pack respectful clothing
  • Appropriate museum wear

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