Forest Grove Weather in May

May in Forest Grove typically sees daytime highs of 20°C (68°F) and nighttime lows of 14°C (57°F). Rainfall is also possible this month, so it's worth packing an umbrella.

Rainfall in Forest Grove in May

Historically, the month has about 13 days of rain, averaging 102 mm (4 in) in total. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Forest Grove in May

If you're visiting Forest Grove in May, expect highs of 20°C (68°F) and overnight lows around 14°C (57°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With lows of 14°C (57°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

If your ideal day consists of dry skies and pleasant temperatures, January, February, March, April, November and December typically offer the best circumstances for Forest Grove.