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

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Traveling to Grayslake, Illinois, United States of America? If you're planning to go to Grayslake, I have 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 Grayslake, Illinois, United States of America

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

Important essentials for Grayslake, Illinois, United States of America

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

COVID-19 ESSENTIALS FOR 2022

  • Hand sanitizer

    This hand sanitizer is an excellent plane-friendly product.

  • N95 masks to use in crowded airports

    These N95 masks provide the best level of protection you can have.

  • A vaccine card protector

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

  • Travel insurance

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

  • Travel disinfecting wipes

    Use these to sanitize plane and hotel surfaces.

  • 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 Grayslake, Illinois, United States of America by month

Already know when you're traveling?

January

In January, Grayslake is frigid, snowy and somewhat rainy. Temperatures routinely are in the low 30s F (single digits below 0 C) and once in a while jump into the low 40s F (single digits C) range. At night, lows are in the high 10s F (single digits below 0 C). During your visit, you can expect extremely heavy snowfall. This is also a rainy time for Grayslake, with several of the days of the month having rain. In January, humidity reaches as high as 70%.

What to wear/what to pack:

February

February in Grayslake is very cold and snowy. 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 a bit less than half of the time. It also snows occasionally. 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:

March

March in Grayslake can be brisk, snowy and somewhat rainy. The average overnight temperatures in the area are in the high 20s F (single digits below 0 C). It tends to rain about half of the time. It also snows sometimes. But the colder weather doesn't bring low humidity, which is in the 50% to 60% range on average.

What to wear/what to pack:

April

If you go to Grayslake in April, you will notice that it is cool and somewhat rainy. Expect it to rain about half of the time. Daytime temperatures are in the high 50s F (mid 10s C).

What to wear/what to pack:

May

If you are traveling to Grayslake in May, you will notice that it is mild and somewhat rainy. Expect it to rain a bit less than half of the time. Daytime temperatures are in the low 70s F (low 20s C).

What to wear/what to pack:

June

If you visit Grayslake during June, you are likely to find that it is warm and somewhat rainy. Temperatures tend to hover around the low 70s F (high 20s C) during the day, while at night they can dip into the high 50s F (mid 10s C). Humidity is generally between 50 and 60% during the day. In terms of precipitation, you can expect it to rain about a third of the time.

What to wear/what to pack:

July

If you visit Grayslake during July, you may find that it is extremely warm and somewhat rainy. Temperatures tend to hover around the 80s F (high 20s C) during the day, while at night they can dip into the 60s F (high 10s C). Humidity is generally between 50 and 60% during the day. In terms of precipitation, you can expect it to rain about a third of the time.

What to wear/what to pack:

August

August in Grayslake is extremely warm. The rain can amount to several inches/centimeters. During this time, temperatures average in the low 70s F (low 20s C) to low 80s F (high 20s C), although night temperatures can dip into the low 60s F (mid 10s C).

What to wear/what to pack:

September

If you visit Grayslake during September, you may notice that it is a perfect temperature and somewhat rainy. Temperatures tend to hover around the 70s F (mid 20s C) during the day, while at night they can dip into the 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 Grayslake can be chilly. The rain can amount to several inches/centimeters. During this time, temperatures average in the low 60s F (high 10s C), although night temperatures can dip into the low 40s F (single digits C).

What to wear/what to pack:

November

If you vacation in Grayslake during November, you might see that it is pretty cool and somewhat rainy. Temperatures tend to hover around the high 40s F (single digits C) during the day, while at night they can dip into the low 30s F (single digits C). Humidity is generally between 60 and 70% during the day. In terms of precipitation, you can expect it to rain regularly.

What to wear/what to pack:

December

In December, Grayslake is freezing, snowy and somewhat rainy. Temperatures routinely are in the 30s F (single digits C) and 5-10 days this month jump into the low 40s F (single digits C) range. At night, lows are in the low 20s F (single digits below 0 C). During your visit, you can expect extremely heavy snowfall. This is also a rainy time for Grayslake, with several of the days of the month having rain. In December, humidity reaches as high as 70%.

What to wear/what to pack:

Activities for Grayslake, Illinois, United States of America

Here are some activity recommendations and activity-specific packing tips for Grayslake.

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