| NWS Forecast for: Lower Columbia River Issued by: National Weather Service Portland, OR Last Update: 1128 AM PDT Sun Oct 4 2026 |  |
| This Afternoon: Sunny. Highs in the lower 80s. Winds light. Tonight: Mostly clear in the evening, then becoming partly cloudy. Patchy dense fog after midnight. Lows in the mid 50s. Winds light. Monday: Patchy dense fog in the morning. Mostly sunny. Highs in the mid 70s. Northwest wind 5 to 10 mph. Monday Night: Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 50s. Winds light. Tuesday: Partly sunny in the morning, then clearing. Highs in the mid 70s. North wind 5 to 10 mph. Tuesday Night: Clear. Lows in the lower 50s. Wednesday: Sunny. Highs in the upper 70s. Wednesday Night: Clear. Lows in the lower 50s. Thursday: Sunny. Highs around 80. Thursday Night: Mostly clear. Lows in the lower 50s. Friday: Partly sunny. Highs in the upper 60s. Friday Night: Partly cloudy. Lows in the upper 40s. Saturday: Partly sunny. Highs in the mid 60s. | |
| Zone Forecast: Lower Columbia River | |
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