Portland, Oregon weather in April

Averages from 2021–2025 (150 days of record).

Average high: 59°F
Average low: 41°F
Rainy days: ~14 per month
Total precipitation: 4.3 in
Warmest recorded: 79°F
Coldest recorded: 28°F

Expect April days in Portland, Oregon to top out around 59°F and cool to about 41°F overnight, with roughly 14 days of measurable rain across the month. In recent years April has ranged from 28°F to 79°F.

Other months

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Current Portland, Oregon forecast → · Historical data by Open-Meteo (ERA5).