Weather WorldMarquam Lake, OR 7-Day Night Weather Forecast
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Marquam Lake, OR Weather Forecast
Marquam Lake, OR Weather Forecast Date: 202 PM PDT Wed Sep 16 2026
The area/counties/county of: Inner Portland Metro, including the cities of: Portland, Sellwood, Happy Valley, Lake Oswego, Oregon City, and Eagle Creek.or toggle through each period.
This Afternoon... Sunny. Highs in the lower 80s. Northeast wind 5 to 10 mph.
Tonight... Clear. Lows in the mid 50s. North wind 5 to 10 mph.
Thursday... Sunny. Highs in the mid 80s. Winds light.
Thursday Night... Mostly clear. Lows in the mid 50s. Winds light.
Friday... Partly sunny in the morning, then clearing. Highs in the mid 70s. Winds light.
Friday Night... Mostly clear. Lows in the mid 50s.
Saturday... Mostly sunny. Highs in the upper 70s.
Saturday Night... Mostly clear. Lows in the lower 50s.
Sunday... Sunny. Highs around 80.
Sunday Night... Mostly clear. Lows in the mid 50s.
Monday... Mostly sunny. Highs in the mid 70s.
Monday Night... Partly cloudy in the evening, then becoming mostly clear. Lows in the mid 50s.
POP = Probability of Precipitation
Marquam Lake Radar Loop
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