When to go · Idaho Falls
Idaho Falls in July
Great month. Inside Idaho Falls's best window: Jun–Sep (warm, parks open); May and Sep for fewer crowds.
Key facts
- Verdict
- Great
- Temperature
- 31°C (88°F)88°F (31°C) / 12°C (54°F)54°F (12°C)
- average high / low
- Rain days
- 5
- Crowds
- High
- United States overall
- Prices
- High
- United States overall
Verdict
Inside Idaho Falls's best window: Jun–Sep (warm, parks open); May and Sep for fewer crowds.
Is another month better than July?
No other month rates higher than July for Idaho Falls in this guide.
Weather in July
- Idaho FallsHighs around 31 °C (88 °F), lows around 12 °C (54 °F), rain on about 5 daysHighs around 88 °F (31 °C), lows around 54 °F (12 °C), rain on about 5 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 Idaho Falls, side by side.
Verdict
Jul: Great
May: Great
Daytime high
Jul: 31 °C (88 °F)88 °F (31 °C)
May: 20 °C (68 °F)68 °F (20 °C)
Night low
Jul: 12 °C (54 °F)54 °F (12 °C)
May: 5 °C (41 °F)41 °F (5 °C)
Rain days
Jul: 5 (better)
May: 9
Crowds
Jul: High
May: Medium
Prices
Jul: High
May: Medium
Festivals listed
Jul: 1
May: 1
July: Inside Idaho Falls's best window: Jun–Sep (warm, parks open); May and Sep for fewer crowds.
May: Inside Idaho Falls's best window: Jun–Sep (warm, parks open); May and Sep for fewer crowds.
Idaho Falls: figures are long-term averages from this guide, not a forecast.
What to pack
- Light, breathable clothes, a sun hat and sunscreen
- A warm layer for the evenings