Northern Illinois, Illinois, United States of America: What to pack, what to wear, and when to go [2022]

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Traveling to Northern Illinois, Illinois, United States of America? If you're planning to go to Northern Illinois, this article contains some important information about when to go, what to wear, and what to pack.

Contents

About your travel guide

Hi! I'm Dev. I've traveled all over the world and in my travels, I have made many packing lists. In this series, my team and I have compiled the most useful information, as well as things we couldn't live without, to help you plan your trip.


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

Based on the climate and weather in Northern Illinois, the best time to go is August. See below for details.

Important essentials for Northern Illinois, Illinois, United States of America

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

COVID-19 ESSENTIALS FOR 2022


  • A vaccine card protector

    Vaccine cards may get worn. An unreadable card can cause severe consequences. This vaccine card protector helps stop that.


  • Hand sanitizer

    This hand sanitizer is an excellent plane-friendly product.


  • Travel disinfecting wipes

    Use these to sanitize plane and hotel surfaces.


  • N95 masks to use in crowded airports

    These N95 masks provide the best level of COVID-19 protection available.


  • Travel insurance

    If you or a companion get COVID-19, your amazing trip can be ruined. Good travel insurance can help. See plans


  • Kids' KN95 masks

    N95 masks are not available for kids. These are a good alternative (and can also be used by adults if N95 masks are not available).

General health necessities

Don't forget these

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

Already know when you're traveling?

January

January in Northern Illinois is very cold and snowy. The average overnight temperatures in the area are in the 10s F (10+ below zero C), with a few days below 0 F (10+ below zero C). It tends to rain regularly. It also snows about a third of the time. But the colder weather doesn't bring low humidity, which is in the 60% to 70% range on average.

What to wear/what to pack:

February

Traveling to Northern Illinois in February, you will notice that it is very cold and snowy. Expect it to rain about a third of the time and snow once in a while. Daytime temperatures are in the 30s F (single digits C).

What to wear/what to pack:

March

March in this region can be brisk, snowy and somewhat rainy. Temperatures average in the 40s F (single digits C) during the day. It rains a bit less than half of the time and snows occasionally.

What to wear/what to pack:

April

If you are traveling to Northern Illinois in April, you will notice that it is cool and somewhat rainy. Expect it to rain regularly. Daytime temperatures are in the low 50s F (mid 10s C).

What to wear/what to pack:

May

May in Northern Illinois is balmy and somewhat rainy. The average overnight temperatures in the area are in the high 40s F (single digits C). It tends to rain about a third of the time. With the colder weather comes lower humidity, which is in the 50% to 50% range on average.

What to wear/what to pack:

June

June for Northern Illinois is pretty consistently hot and somewhat rainy. Temperatures average in the low 80s F (high 20s C) during the day. It rains a bit less than half of the time.

What to wear/what to pack:

July

July here can be very hot and somewhat rainy. Temperatures average in the high 80s F (low 30s C) during the day. It rains regularly.

What to wear/what to pack:

August

If you are traveling to Northern Illinois in August, you will notice that it is hot. Expect it to rain 5-10 days this month. Daytime temperatures are in the 80s F (high 20s C).

What to wear/what to pack:

September

If you visit Northern Illinois during September, you may notice that it is warm. Temperatures tend to hover around the high 70s F (mid 20s C) during the day, while at night they can dip into the low 50s F (low 10s C). Humidity is generally between 50 and 60% during the day. In terms of precipitation, you can expect it to rain regularly.

What to wear/what to pack:

October

October in Northern Illinois is chilly. The rain can amount to several inches/centimeters. During this time, temperatures average in the low 50s F (low 10s C) to 60s F (high 10s C), although night temperatures can dip into the low 30s F (single digits C).

What to wear/what to pack:

November

November in Northern Illinois is pretty cool. The rain/snow can amount to several inches/centimeters. During this time, temperatures average in the high 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:

December

If you are traveling to Northern Illinois in December, you will notice that it can be extremely cold, snowy and somewhat rainy. Expect it to rain 5-10 days this month and snow regularly. Daytime temperatures are in the 30s F (single digits C).

What to wear/what to pack:

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