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

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

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

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

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

January

If you go to Naperville in January, you will notice that it is frigid. Expect it to rain regularly. Daytime temperatures are in the low 30s F (single digits below 0 C).

What to wear/what to pack:

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

February

February here is frigid. Temperatures average in the 30s F (single digits C) during the day. It rains regularly.

What to wear/what to pack:

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

March

In March, Naperville is cold and somewhat rainy. Temperatures routinely are in the high 40s F (single digits C) and 5-10 days this month jump into the low 50s F (single digits C) range.

At night, lows are in the high 20s F (single digits below 0 C). This is also a rainy time for Naperville, with several of the days of the month having rain.

What to wear/what to pack:

  • Heavy jacket
  • Waterproof boots
  • Waterproof coat
  • Gloves or mittens
  • Cold weather footwear
  • Warm pants or jeans
  • Sweaters
  • Umbrella
  • Heavy socks

April

April is chilly and somewhat rainy. Temperatures average in the low 60s F (high 10s C) during the day. It rains a bit less than half of the time.

What to wear/what to pack:

  • Rain coat
  • Socks
  • Waterproof footwear
  • Waterproof luggage
  • Warm pants or jeans
  • Umbrella
  • Light gloves or mittens
  • Jacket or coat
  • Fleeces
  • Standard footwear

May

May in Naperville is a perfect temperature and somewhat rainy. The average overnight temperatures in the area are in the high 40s F (single digits C). It tends to rain 5-10 days this month.

What to wear/what to pack:

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

June

In June, Naperville is hot and somewhat rainy. Temperatures routinely are in the low 80s F (high 20s C) and about a third of the time jump into the low 90s F (low 30s C) range.

At night, lows are in the high 50s F (mid 10s C). This is also a rainy time for Naperville, with several of the days of the month having rain.

What to wear/what to pack:

  • Dresses
  • Skirts
  • If you're going to the beach, bathing suits, swimwear
  • Waterproof luggage
  • Waterproof footwear
  • Shorts
  • Sandals
  • Sunscreen lotion
  • Umbrella
  • Sunglasses
  • Short sleeve shirts
  • Rain coat

July

If you vacation in Naperville during July, you are likely to find that it is really hot. Temperatures tend to hover around the 80s F (low 30s C) during the day, while at night they can dip into the low 60s F (high 10s C).

In terms of precipitation, you can expect it to rain 5-10 days this month.

What to wear/what to pack:

  • Waterproof footwear
  • Dresses
  • Sandals
  • Skirts
  • Rain coat
  • Short sleeve shirts
  • Umbrella
  • Sunscreen lotion
  • If you're going to the beach, bathing suits, swimwear
  • Sunglasses
  • Shorts
  • Waterproof luggage

August

August for Naperville is extremely warm. Temperatures average in the 80s F (high 20s C) during the day. It rains about a third of the time.

What to wear/what to pack:

  • Skirts
  • Waterproof footwear
  • Short sleeve shirts
  • Sandals
  • Shorts
  • Sunscreen lotion
  • Waterproof luggage
  • Rain coat
  • Dresses
  • If you're going to the beach, bathing suits, swimwear
  • Umbrella
  • Sunglasses

September

Traveling to Naperville in September, you will notice that it is warm. Expect it to rain regularly. Daytime temperatures are in the high 70s F (mid 20s C).

What to wear/what to pack:

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

October

If you go to Naperville in October, you will notice that it is mild. Expect it to rain regularly. Daytime temperatures are in the 60s F (high 10s C).

What to wear/what to pack:

  • Long sleeve shirts or blouses
  • Socks
  • Dresses
  • Waterproof luggage
  • Waterproof footwear
  • Rain coat
  • Standard footwear
  • Umbrella
  • Light jacket or fleece
  • Pants or jeans
  • Long skirts

November

November in Naperville is cold. The rain/snow can amount to several inches/centimeters.

During this time, temperatures average in the low 30s F (single digits C) to high 40s F (single digits C), although night temperatures can dip into the low 20s F (single digits below 0 C).

What to wear/what to pack:

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

December

December in Naperville is very cold. The average overnight temperatures in the area are in the low 20s F (single digits below 0 C), with a few days below 0 F (10+ below zero C).

It tends to rain about a third of the time.

What to wear/what to pack:

  • Gloves or mittens
  • Heavy socks
  • Umbrella
  • Warm pants or jeans
  • Waterproof coat
  • Heavy jacket
  • Sweaters
  • Cold weather footwear
  • Waterproof boots

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

Here are some general tips on what to wear in Naperville, 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 Naperville
  • If you plan to visit a church, make sure to bring appropriate clothing
  • Appropriate museum wear

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