Discover

Illinois

Set in the heart of the American Midwest, Illinois is a state of striking contrasts – where soaring city skylines meet quiet prairies, historic river towns, and rolling countryside. At its centre sits Chicago, a world-class city famed for its architecture, live music, lakefront parks, and deep-dish pizza, offering big-city buzz alongside welcoming neighbourhoods and sandy beaches along Lake Michigan. Beyond the metropolis, discover the scenic Great River Road along the Mississippi, the wine trails and bluffs of the south, and charming communities rich with Route 66 nostalgia and Abraham Lincoln heritage. Whether you’re drawn by culture, history, or wide-open landscapes, Illinois delivers a diverse slice of America with surprises at every turn.

What you’ll love most about Illinois

Explore Chicago’s iconic skyline, from Millennium Park and the Art Institute to Navy Pier and world-famous deep-dish pizza
Wander the historic streets of Springfield, home to Abraham Lincoln’s legacy, the Lincoln Home National Historic Site, and engaging museums
Cruise the scenic Illinois River or Lake Michigan, taking in charming waterfront towns, beaches, and picturesque nature spots
Discover small-town charm in places like Galena and Ottawa, where boutique shops, historic architecture, and rolling hills invite relaxed exploration
Immerse yourself in Illinois’ rich music and cultural heritage, from Chicago blues and jazz clubs to local festivals and art events
Experience the great outdoors at Starved Rock State Park, Shawnee National Forest, and other natural areas, perfect for hiking, waterfalls, and wildlife spotting

Please note that the estimated temperature, rainfall and recommended months of when to go are based on Chicago’s weather patterns

Holiday Highlights

Average temperature

Information below is based on average highest temperature for each month.

-1℃J
1℃F
8℃M
15℃A
21℃M
27℃J
29℃J
28℃A
24℃S
17℃O
9℃N
2℃D

8J
7F
13M
12A
17M
12J
12J
13A
10S
13O
14N
9D

Information above is based on the average number of days which experience some form of rainfall for each month.

Rainfall

When to Visit

Below gives you information and a rating of the best time of year to visit.

J
F
M
A
M
J
J
A
S
O
N
D

January

Winter mornings are crisp and cold, with highs around 2–4°C and frequent frost in central and northern Illinois. Chicago’s lakefront is serene, and indoor attractions like the Art Institute, museums, and jazz clubs offer warmth and culture. Countryside drives reveal bare trees and snow-dusted fields.

February

Still cold, highs reaching 3–6°C. Snow is common but usually manageable, creating a picturesque backdrop for exploring historic towns or downtown Chicago. Winter festivals, ice skating at Millennium Park, and cosy cafés provide comfort, while the countryside is quiet and peaceful.

March

Temperatures rise to 10–12°C, with the first hints of spring. Parks and gardens start greening, and city events like St. Patrick’s Day celebrations bring colour and energy. Trails along Lake Michigan and in forest preserves become popular for walking, running, and cycling.

April

Mild and fresh, highs around 15–18°C. Cherry blossoms bloom in parks and along riverfronts. It’s a great month for sightseeing, biking, or enjoying outdoor markets. Festivals and cultural events start returning, and the city and countryside feel bright and inviting.

May

Warm and sunny, with highs around 20–23°C. Perfect for exploring Chicago’s lakefront, visiting historic sites in Springfield, or enjoying outdoor patios, gardens, and music festivals. Farmers’ markets, hiking trails, and scenic drives are at their peak, while rivers and lakes beckon for boating.

June

Summer arrives with highs of 25–28°C. Outdoor adventures are plentiful—beaches along Lake Michigan, state parks, golf courses, and boating. Festivals, open-air concerts, and cultural events bring cities and towns to life. Early mornings or late evenings are ideal for avoiding midday heat.

July

Hot and humid, highs often 29–31°C. Chicago beaches, rooftop bars, and outdoor concerts are buzzing, while inland lakes and rivers are perfect for swimming, fishing, and kayaking. Independence Day fireworks illuminate skies across towns and cities.

August

Still warm and humid, highs around 30°C. Late summer is perfect for festivals, fairs, and outdoor sports. Morning and evening walks are most comfortable, and local farmers’ markets provide fresh produce and seasonal treats. Boating and water sports remain popular.

September

Temperatures ease to 24–27°C, with crisp mornings and mild afternoons. Fall colours begin to appear in forest preserves and state parks, making scenic drives and hiking rewarding. Music, arts, and harvest festivals provide cultural highlights, and the crowds start to thin.

October

Cool, crisp, and colourful, highs around 16–20°C. Autumn foliage is at its peak, ideal for road trips and nature walks. Pumpkin patches, harvest festivals, and Oktoberfests appear across towns. Chicago’s city streets and squares host cultural events and farmers’ markets in a vibrant fall atmosphere.

November

Chill returns, highs in the low teens°C. Late autumn brings quiet beauty to rural areas and city parks. Thanksgiving events and indoor cultural attractions offer warmth, while scenic drives through colourful woodland and farmland remain peaceful. Early winter preparations and markets begin appearing.

December

Cold, highs around 3–6°C, with frost and occasional snow. Cities and towns glow with festive lights, seasonal markets, and cultural events. Ice skating, museums, and cafés are ideal escapes from the chill, while countryside trails offer crisp winter walks under clear skies.

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