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

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Traveling to Southern Illinois, Illinois, United States of America? If you're planning to go to Southern Illinois, we've got 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 Southern Illinois, Illinois, United States of America

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

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

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

COVID-19 ESSENTIALS FOR 2022


  • Travel insurance that includes COVID-19 coverage

    Cases are climbing again, and areas are returning to lockdown. If you or a companion get COVID-19, you may be stuck with no way home -- but travel insurance can protect you. Learn more about COVID-19 and travel insurance


  • Travel disinfecting wipes

    Use these to sanitize plane and hotel surfaces.

  • (U.S. Residents) Telehealth COVID-19 test for entry to U.S.

    U.S. residents still need a certified COVID-19 test to return home, but it can now be via Zoom. Learn more


  • A vaccine card protector

    Vaccine cards can wear away. An unreadable card can have severe consequences. This vaccine card protector helps avoid that.


  • Hand sanitizer

    This hand sanitizer is a good TSA-friendly product.


  • N95 masks

    These N95 masks provide the best level of COVID protection possible.


  • Touchless thermometer

    A touchless thermometer is important to have.


  • Kids' KN95 masks

    N95 masks don't exist 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 Southern Illinois, Illinois, United States of America by month

Already know when you're traveling?

January

January in Southern Illinois can be brisk. The rain/snow can amount to several inches/centimeters. During this time, temperatures average in the 40s F (single digits C).

What to wear/what to pack:

February

February is brisk. Temperatures average in the 40s F (single digits C) during the day. It rains sometimes.

What to wear/what to pack:

March

If you go to Southern Illinois in March, you will notice that it is cool. Expect it to rain once in a while. Daytime temperatures are in the high 50s F (mid 10s C).

What to wear/what to pack:

April

Traveling to Southern Illinois in April, you will notice that it is balmy. Expect it to rain occasionally. Daytime temperatures are in the low 60s F (low 20s C).

What to wear/what to pack:

May

If you visit Southern Illinois during May, you will probably find that it is a perfect temperature. Temperatures tend to hover around the high 70s F (mid 20s C) during the day, while at night they can dip into the 50s F (low 10s C). In terms of precipitation, you can expect it to rain once in a while.

What to wear/what to pack:

June

June in Southern Illinois is extremely hot. The rain can amount to several inches/centimeters. During this time, temperatures average in the high 80s F (low 30s C).

What to wear/what to pack:

July

July in this region can be very hot. Temperatures average in the low 90s F (low 30s C) during the day. It rains sometimes.

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August

August in Southern Illinois is extremely hot. The rain can amount to several inches/centimeters. During this time, temperatures average in the low 80s F (low 30s C).

What to wear/what to pack:

September

September in Southern Illinois is pretty consistently hot. The rain can amount to several inches/centimeters. During this time, temperatures average in the 80s F (high 20s C).

What to wear/what to pack:

October

October in Southern Illinois is mild. The average overnight temperatures in the area are in the 40s F (single digits C), with a few days below 32 F (single digits C). It tends to rain sometimes.

What to wear/what to pack:

November

Traveling to Southern Illinois in November, you will notice that it can be chilly. Expect it to rain occasionally. Daytime temperatures are in the high 50s F (mid 10s C).

What to wear/what to pack:

December

If you vacation in Southern Illinois during December, you may see that it is pretty cool. Temperatures tend to hover around the 40s F (single digits C) during the day, while at night they can dip into the low 30s F (single digits below 0 C). In terms of precipitation, you can expect it to rain sometimes.

What to wear/what to pack:

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