Weather in Idaho Falls in August
Idaho Falls, United States averages a high of 30.1°C (86.2°F) and low of 14.4°C (57.9°F) in August, with 3 rain days and 12.8 hours of daily sunshine. Travel score: 95/100 (Excellent). The best time to visit Idaho Falls is July.
High
30°C86°F
Low
14°C58°F
🌧️
3
rain days
☀️
12.8
hrs/day sunshine
💧
32%
humidity
95— Excellent
August in Idaho Falls is hot and dry — excellent conditions for exploring.
What are the average temperatures in Idaho Falls?
How much does it rain in Idaho Falls in August?
Idaho Falls receives an average of 13.8mm of rainfall across 3 rainy days in August. The annual total is 354.2mm.
What should I pack for Idaho Falls in August?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light, breathable clothing
Hot weather with highs around 30°C
🧢
Sun hat or cap
Protection from intense sun
🧴
Sunscreen SPF 30+
13 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Evening jacket or cardigan
Temperature drops 16°C from day to night
Traveling to United States in August?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31