Open Travel Guide
Weather in Indiana

Indiana Weather & Climate Guide 2026

Indiana's climate in numbers — the months that flatter it, the ones to avoid, and what to pack.

Weather through the year in United States

0° JAN 2° FEB 8° MAR 14° APR 18° MAY 24° JUN 26° JUL 26° AUG 21° SEP 15° OCT 9° NOV 4° DEC

Best time Shoulder Worth avoiding

Average daytime temperature in °C. Figures are for United States.

Indiana is a Midwestern state known as the 'Crossroads of America,' celebrated for the Indianapolis Motor Speedway, the Indiana Dunes National Park along Lake Michigan, a vibrant craft brewing scene, and rich Native American and Civil War history. From the urban energy of Indianapolis to the rolling hills of Brown County and the sand dunes of the Lake Michigan shoreline, Indiana offers surprising variety for travelers.

Indiana has a humid continental climate with four distinct seasons. Winters are cold (often below freezing) with occasional snow. Summers are warm to hot and humid, with July averaging 30°C (86°F) highs in Indianapolis. Spring and fall offer the most pleasant conditions for outdoor activities. Indiana receives moderate rainfall spread throughout the year, with slightly wetter springs. Tornado risk is highest in April–June.

Best time to visit

Recommendation

Best: Year-round

Avoid: None

Month-by-month weather

Typical conditions throughout the year.

Items

The seasons

What to expect in each part of the year.

Season

Items

Crowds & peak times

When to expect tourists and when to avoid them.

Items
  • Period
    Indy 500 Weekend (late May)
    Crowd level
    Extreme
    Notes
    300,000+ visitors; hotel prices 3–5x normal; book a year ahead
  • Period
    July–August
    Crowd level
    Very High
    Notes
    Peak summer travel; Indiana Dunes very busy on weekends
  • Period
    October weekends (Brown County)
    Crowd level
    High
    Notes
    Fall foliage draws weekend crowds; Nashville, Indiana fills up
  • Period
    January–February
    Crowd level
    Very Low
    Notes
    Best for budget travelers; uncrowded museums
  • Period
    November–December (excl. holidays)
    Crowd level
    Low
    Notes
    Good for affordable city breaks in Indianapolis

Major events & festivals

Time your visit around what matters.

Event

Event

Event

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