Portland, Oregon weather in July

Averages from 2021–2025 (155 days of record).

Average high: 85°F
Average low: 59°F
Rainy days: ~2 per month
Total precipitation: 0.2 in
Warmest recorded: 102°F
Coldest recorded: 51°F

Expect July days in Portland, Oregon to top out around 85°F and cool to about 59°F overnight, with roughly 2 days of measurable rain across the month. In recent years July has ranged from 51°F to 102°F.

Other months

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