Last updated: June 24, 2025
The average temperature in Mountain Home, United States during May is a pleasant 20°C (68°F). However, temperatures can vary significantly, with minimums dropping to 5°C (41°F) and maximums soaring up to 34°C (93°F). Be prepared for some wet days, as the precipitation averages 167 mm (6.6 in) over the course of 14 days, contributing to an average humidity level of 83%.
In May in Mountain Home, the average temperature is 20°C (68°F). Maximums can reach 34°C (93°F) and minimums can be as low as 5°C (41°F). Travelers should be prepared for warm days and cool nights, making layering essentials for this time of year.
In Mountain Home in May, the precipitation amount is 167 mm (6.6 in) over a span of 14 days.
In Mountain Home in May humidity is 83%. With an average temperature of 20°C (68°F), this humidity feels like a warm, heavy blanket enveloping you, making it feel much warmer than it is. Traveling in such conditions can be quite taxing, as the air feels thick, often leading to a sense of exhaustion and requiring frequent breaks to seek shade or hydration.
In Mountain Home in May, 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 Mountain Home.
UV Risk Categories
Weather in Mountain Home varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Mountain Home, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 3°C (39°F) | 77 mm (3.0 inches) | 81% | moderate |
| February Weather | 5°C (41°F) | 107 mm (4.2 inches) | 78% | high |
| March Weather | 11°C (52°F) | 136 mm (5.4 inches) | 76% | high |
| April Weather | 14°C (58°F) | 137 mm (5.4 inches) | 78% | very high |
| May Weather | 20°C (68°F) | 167 mm (6.6 inches) | 83% | very high |
| June Weather | 25°C (77°F) | 82 mm (3.2 inches) | 83% | extreme |
| July Weather | 27°C (81°F) | 67 mm (2.7 inches) | 78% | extreme |
| August Weather | 26°C (79°F) | 104 mm (4.1 inches) | 68% | very high |
| September Weather | 24°C (75°F) | 58 mm (2.3 inches) | 64% | very high |
| October Weather | 16°C (62°F) | 100 mm (3.9 inches) | 70% | high |
| November Weather | 9°C (49°F) | 72 mm (2.9 inches) | 83% | moderate |
| December Weather | 7°C (44°F) | 83 mm (3.3 inches) | 87% | moderate |