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

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

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

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

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

January

January is freezing. Temperatures average in the low 30s F (single digits C) during the day. It snows once in a while.

What to wear/what to pack:

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

February

February in Western Illinois can be very chilly. Temperatures average in the high 30s F (single digits C) during the day. It snows once in a while.

What to wear/what to pack:

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

March

If you vacation in Western Illinois during March, you are likely to find that it is brisk.

Temperatures tend to hover around the low 50s F (low 10s C) during the day, while at night they can dip into the low 30s F (single digits below 0 C).

What to wear/what to pack:

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

April

April in Western Illinois is cool. The rain can amount to several inches/centimeters. During this time, temperatures average in the 60s F (high 10s C), although night temperatures can dip into the low 40s F (single digits C).

What to wear/what to pack:

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

May

In May, Western Illinois is warm. Temperatures routinely are in the 70s F (mid 20s C) and a bit less than half of the time jump into the low 80s F (high 20s C) range.

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

What to wear/what to pack:

  • Shorts or short pants
  • Sandals
  • Umbrella
  • Long and short sleeve shirts
  • Rain coat
  • Sunscreen lotion
  • Waterproof luggage
  • Waterproof footwear
  • Dresses
  • Light footwear
  • Skirts

June

Traveling to Western Illinois in June, you will notice that it is extremely warm. Daytime temperatures are in the 80s F (high 20s C).

What to wear/what to pack:

  • Skirts
  • Sandals
  • Waterproof luggage
  • Dresses
  • Sunglasses
  • Shorts
  • Short sleeve shirts
  • Rain coat
  • Umbrella
  • Waterproof footwear
  • Sunscreen lotion

July

July in Western Illinois is extremely hot. The rain can amount to several inches/centimeters.

During this time, temperatures average in the 70s F (mid 20s C) to high 80s F (low 30s C), although night temperatures can dip into the low 60s F (mid 10s C).

What to wear/what to pack:

  • Sunglasses
  • Sandals
  • Dresses
  • Skirts
  • Short sleeve shirts
  • Waterproof footwear
  • Sunscreen lotion
  • Waterproof luggage
  • Shorts
  • Umbrella
  • Rain coat

August

August for Western Illinois is extremely hot. Temperatures average in the 80s F (low 20s C) during the day.

What to wear/what to pack:

  • Dresses
  • Shorts
  • Skirts
  • Sunglasses
  • Sunscreen lotion
  • Umbrella
  • Sandals
  • Short sleeve shirts
  • Rain coat
  • Waterproof footwear
  • Waterproof luggage

September

If you visit Western Illinois during September, you are likely to find that it is a perfect temperature.

Temperatures tend to hover around the low 70s F (mid 20s C) during the day, while at night they can dip into the low 50s F (low 10s C).

What to wear/what to pack:

  • Shorts or short pants
  • Waterproof footwear
  • Sandals
  • Skirts
  • Umbrella
  • Dresses
  • Light footwear
  • Rain coat
  • Sunscreen lotion
  • Long and short sleeve shirts
  • Waterproof luggage

October

October in this region is balmy. Temperatures average in the high 60s F (low 10s C) during the day.

What to wear/what to pack:

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

November

November in Western Illinois is brisk. The rain can amount to several inches/centimeters.

During this time, temperatures average in the low 40s F (single digits C) to low 50s F (low 10s C), although night temperatures can dip into the low 20s F (single digits below 0 C).

What to wear/what to pack:

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

December

Traveling to Western Illinois in December, you will notice that it can be brisk. Expect it to snow once in a while. Daytime temperatures are in the high 30s F (single digits C).

What to wear/what to pack:

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

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

Here are some general tips on what to wear in Western Illinois, 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 Western Illinois

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