Weather in Longmont in August
Longmont, United States averages a high of 28.8°C (83.8°F) and low of 14.5°C (58.1°F) in August, with 6 rain days and 12.4 hours of daily sunshine. Travel score: 92/100 (Excellent). The best time to visit Longmont is August.
High
29°C84°F
Low
15°C58°F
🌧️
6
rain days
☀️
12.4
hrs/day sunshine
💧
55%
humidity
92— Excellent
August in Longmont is hot and mostly dry — ideal for sightseeing and outdoor activities.
What are the average temperatures in Longmont?
How much does it rain in Longmont in August?
Longmont receives an average of 39.2mm of rainfall across 6 rainy days in August. The annual total is 472.8mm.
What should I pack for Longmont in August?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 29°C
🧴
Sunscreen SPF 30+
12 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Evening jacket or cardigan
Temperature drops 14°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