Last updated: June 24, 2025
In Belle Fourche, United States during August, the average temperature hovers around 22°C (72°F), but prepare for a wide range as it can dip to a chilly 6°C (44°F) or soar up to a scorching 40°C (104°F). Overall, expect about 36 mm (1.4 in) of precipitation over 5 days of the month, coupled with a relatively high average humidity of 84%. Stay hydrated and pack accordingly!
In August in Belle Fourche, the average temperature is 22°C (72°F), with maximums reaching up to 40°C (104°F) and minimums dropping as low as 6°C (44°F). This variation makes it essential for travelers to pack for both warm days and cooler nights.
In Belle Fourche in August, the precipitation amount is 36 mm (1.4 in) over the course of 5 days.
In Belle Fourche in August humidity is 84%. With an average temperature of 22°C (72°F), this humidity feels like a warm embrace, making travel feel slightly stifling but also lending a vibrant energy to the atmosphere, which can be both invigorating and tiring as you explore.
In Belle Fourche in August, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Belle Fourche.
UV Risk Categories
Weather in Belle Fourche varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Belle Fourche, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -4°C (26°F) | 14 mm (0.6 inches) | 77% | low |
| February Weather | -6°C (22°F) | 25 mm (1.0 inches) | 80% | moderate |
| March Weather | 2°C (36°F) | 28 mm (1.1 inches) | 70% | moderate |
| April Weather | 6°C (43°F) | 59 mm (2.3 inches) | 70% | very high |
| May Weather | 13°C (55°F) | 69 mm (2.7 inches) | 76% | very high |
| June Weather | 21°C (69°F) | 44 mm (1.7 inches) | 84% | very high |
| July Weather | 24°C (75°F) | 60 mm (2.4 inches) | 85% | very high |
| August Weather | 22°C (72°F) | 36 mm (1.4 inches) | 84% | very high |
| September Weather | 17°C (63°F) | 33 mm (1.3 inches) | 77% | very high |
| October Weather | 8°C (46°F) | 49 mm (1.9 inches) | 73% | moderate |
| November Weather | 3°C (38°F) | 13 mm (0.5 inches) | 74% | moderate |
| December Weather | -1°C (30°F) | 22 mm (0.8 inches) | 79% | low |