Harvey, Illinois, United States of America: What to pack, what to wear, and when to go [2021]

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

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

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

Important esssentials for Harvey, Illinois, United States of America

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

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

January

January here is frigid, snowy and somewhat rainy. Temperatures average in the low 30s F (single digits below 0 C) during the day. It rains a bit less than half of the time and snows about a third of the time.

What to wear/what to pack:

February

February in Harvey can be extremely cold and snowy. The snow can amount to several inches/centimeters.

During this time, temperatures average in the 30s F (single digits C), although night temperatures can dip into the single digits F (10+ below zero C).

What to wear/what to pack:

March

March in Harvey can be very chilly, 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 occasionally. 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 are traveling to Harvey in April, you will notice that it is relatively 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 Harvey in May, you will notice that it is mild and somewhat rainy. Expect it to rain 5-10 days this month. Daytime temperatures are in the low 70s F (low 20s C).

What to wear/what to pack:

June

In June, Harvey is warm and somewhat rainy. Temperatures routinely are in the low 70s F (high 20s C) range. At night, lows are in the high 50s F (mid 10s C).

This is also a rainy time for Harvey, with several of the days of the month having rain. In June, humidity reaches as high as 60%.

What to wear/what to pack:

July

July for Harvey is extremely warm and somewhat rainy. Temperatures average in the 80s F (high 20s C) during the day. It rains 5-10 days this month.

What to wear/what to pack:

August

Traveling to Harvey in August, you will notice that it is extremely warm. Expect it to rain a bit less than half of the time. Daytime temperatures are in the low 80s F (high 20s C).

What to wear/what to pack:

September

September here is warm and somewhat rainy. Temperatures average in the 70s F (mid 20s C) during the day. It rains 5-10 days this month.

What to wear/what to pack:

October

October is crisp. Temperatures average in the low 60s F (high 10s C) during the day. It rains 5-10 days this month.

What to wear/what to pack:

November

Traveling to Harvey in November, you will notice that it is brisk and somewhat rainy. Expect it to rain about a third of the time. Daytime temperatures are in the high 40s F (single digits C).

What to wear/what to pack:

December

If you go to Harvey in December, you will notice that it is frosty, snowy and somewhat rainy. Expect it to rain about a third of the time and snow about a third of the time.

Daytime temperatures are in the 30s F (single digits C).

What to wear/what to pack:

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