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When to go · Quincy, Illinois

Quincy, Illinois in August

Avoid month. Listed as a month to avoid: Jan–Feb (cold, ice), Jul–Aug (heat and humidity).

Key facts

Verdict
Avoid
Temperature
30°C (86°F) / 19°C (66°F)
average high / low
Rain days
8
Crowds
High
United States overall
Prices
High
United States overall

Verdict

AvoidBest and avoid months for Quincy, Illinois

Listed as a month to avoid: Jan–Feb (cold, ice), Jul–Aug (heat and humidity).

Is another month better than August?

August is rated avoid. These months rate higher:

Weather in August

Long-term averages
  • Quincy, IllinoisHighs around 30 °C (86 °F), lows around 19 °C (66 °F), rain on about 8 days

Crowds and prices

Crowds · United States overall
High
Prices · United States overall
High

United States overall: Hot and busy; wildfire smoke in the West, hurricane peak begins in the Southeast.

High-price month: see what to book ahead.

Compare two months

Weather, crowds and prices for any two months in Quincy, Illinois, side by side.

  • Verdict

    Aug: Avoid

    Apr: Great (better)

  • Daytime high

    Aug: 30 °C (86 °F)

    Apr: 18 °C (64 °F)

  • Night low

    Aug: 19 °C (66 °F)

    Apr: 6 °C (43 °F)

  • Rain days

    Aug: 8 (better)

    Apr: 10

  • Crowds

    Aug: High

    Apr: Medium

  • Prices

    Aug: High

    Apr: Medium

  • Festivals listed

    Aug: 0

    Apr: 1

August: Listed as a month to avoid: Jan–Feb (cold, ice), Jul–Aug (heat and humidity).

April: Inside Quincy, Illinois's best window: Apr–Jun, Sep–Oct.

Quincy, Illinois: figures are long-term averages from this guide, not a forecast.

What to pack

  • Light, breathable clothes, a sun hat and sunscreen

Build the full packing list for your trip →

Across United States in August →