Last updated: June 24, 2025
In Forest Grove, United States, the average temperature in June hovers around 17°C (64°F). Expect a range that can dip to a chilly 5°C (41°F) or soar to a scorching 45°C (113°F). During this time, precipitation amounts to approximately 47 mm (1.9 in) over the course of 7 days, while the average humidity lingers at a notable 83%. Get ready for a month of diverse weather!
In June in Forest Grove, the average temperature is 17°C (64°F), with maximums reaching 45°C (113°F) and minimums dropping as low as 5°C (41°F). Travelers should prepare for a wide range of temperatures, ensuring they pack both warm and cool clothing.
In Forest Grove in June, the total precipitation amount is 47 mm (1.9 in) recorded over a span of 7 days.
In Forest Grove in June, humidity is 83%. With an average temperature of 17°C (64°F), this humidity feels like a warm, heavy blanket wrapping around you, making travel feel sluggish and prompting you to seek the nearest shade or air-conditioned escape.
In Forest Grove in June, 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 Forest Grove.
UV Risk Categories
Weather in Forest Grove varies notably across the year, with each month offering distinct climate conditions. This page compares June’s weather to other months in Forest Grove, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 5°C (42°F) | 173 mm (6.8 inches) | 85% | low |
| February Weather | 5°C (41°F) | 166 mm (6.5 inches) | 84% | moderate |
| March Weather | 7°C (46°F) | 132 mm (5.2 inches) | 85% | moderate |
| April Weather | 10°C (51°F) | 115 mm (4.5 inches) | 83% | high |
| May Weather | 14°C (58°F) | 55 mm (2.2 inches) | 83% | very high |
| June Weather | 17°C (64°F) | 47 mm (1.9 inches) | 83% | very high |
| July Weather | 20°C (69°F) | 5 mm (0.2 inches) | 82% | very high |
| August Weather | 21°C (70°F) | 6 mm (0.2 inches) | 74% | very high |
| September Weather | 17°C (64°F) | 66 mm (2.6 inches) | 71% | high |
| October Weather | 11°C (53°F) | 101 mm (4.0 inches) | 81% | moderate |
| November Weather | 8°C (46°F) | 163 mm (6.4 inches) | 87% | moderate |
| December Weather | 5°C (41°F) | 188 mm (7.4 inches) | 87% | low |