| NWS Forecast for: Lower Columbia River Issued by: National Weather Service Portland, OR Last Update: 1208 PM PDT Thu Mar 12 2026 |  |
This Afternoon: Rain. Highs in the upper 40s. Winds light. Chance of rain near 100 percent. Rainfall amounts a quarter to a half of an inch. Tonight: Patchy fog in the evening. Rain. Lows in the upper 30s. Light and variable winds, becoming light after midnight. Chance of rain near 100 percent. Rainfall amounts three quarters of an inch to one inch. Friday: Rain. Highs around 50. Winds light. Chance of rain near 100 percent. Rainfall amounts around one inch. Friday Night: Rain. Lows in the mid 30s. Winds light. Chance of rain near 100 percent. Saturday: Partly sunny. A chance of rain and snow in the morning, then a slight chance of rain showers in the afternoon. Highs around 50. Winds light. Chance of precipitation 50 percent. Saturday Night: Mostly cloudy. Lows in the lower 30s. Sunday: Cloudy with a chance of rain with a slight chance of snow. Highs around 50. Chance of precipitation 50 percent. Sunday Night: Cloudy with a 50 percent chance of rain. Lows around 40. Monday: Mostly cloudy with a 50 percent chance of rain. Highs in the lower 60s. Monday Night: Mostly cloudy in the evening, then becoming partly cloudy. A 20 percent chance of rain. Lows in the lower 40s. Tuesday: Mostly cloudy with a 50 percent chance of rain. Highs in the mid 60s. Tuesday Night: Mostly cloudy with a 50 percent chance of rain. Lows in the upper 40s. Wednesday: Rain likely. Highs in the lower 60s. Chance of rain 70 percent. | |
| Zone Forecast: Lower Columbia River | |
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