When to go · Waterloo, Iowa
Waterloo, Iowa in July
Great month. Inside Waterloo, Iowa's best window: May–Oct.
Key facts
- Verdict
- Great
- Temperature
- 86°C (187°F)187°F (86°C) / 66°C (151°F)151°F (66°C)
- average high / low
- Rain days
- 2
- Crowds
- High
- United States overall
- Prices
- High
- United States overall
Verdict
Inside Waterloo, Iowa's best window: May–Oct.
Is another month better than July?
No other month rates higher than July for Waterloo, Iowa in this guide.
Weather in July
- Waterloo, IowaHighs around 86 °C (187 °F), lows around 66 °C (151 °F), rain on about 2 daysHighs around 187 °F (86 °C), lows around 151 °F (66 °C), rain on about 2 days
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Independence Day big impact
4 Jul · United States
Fireworks and parades; parks, beaches and flights busy.
Crowds and prices
- Crowds · United States overall
- High
- Prices · United States overall
- High
United States overall: Peak season: parks full, 4 July crowds, 40 °C+ in the desert, humid East. Alaska and the Pacific Northwest are at their best.
High-price month: see what to book ahead.
Compare two months
Weather, crowds and prices for any two months in Waterloo, Iowa, side by side.
Verdict
Jul: Great
May: Great
Daytime high
Jul: 86 °C (187 °F)187 °F (86 °C)
May: 71 °C (160 °F)160 °F (71 °C)
Night low
Jul: 66 °C (151 °F)151 °F (66 °C)
May: 50 °C (122 °F)122 °F (50 °C)
Rain days
Jul: 2 (better)
May: 4
Crowds
Jul: High
May: Medium
Prices
Jul: High
May: Medium
Festivals listed
Jul: 1
May: 1
July: Inside Waterloo, Iowa's best window: May–Oct.
May: Inside Waterloo, Iowa's best window: May–Oct.
Waterloo, Iowa: figures are long-term averages from this guide, not a forecast.
What to pack
- Light, breathable clothes, a sun hat and sunscreen