| NWS Forecast for: Tualatin Valley Issued by: National Weather Service Portland, OR Last Update: 501 PM PDT Tue Sep 22 2026 | |
| Tonight: Partly cloudy. Lows in the upper 40s. Winds light this evening, becoming light and variable. Wednesday: Mostly sunny. Highs in the lower 70s. Light and variable winds, becoming light in the afternoon. Wednesday Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows around 50. Winds light. Thursday: Mostly cloudy. A chance of rain in the afternoon. Highs in the upper 60s. Light and variable winds. Chance of rain 40 percent. Thursday Night: Rain. Lows in the lower 50s. Light and variable winds, becoming light after midnight. Chance of rain near 100 percent. Friday: Mostly cloudy with rain likely with a slight chance of thunderstorms. Highs in the lower 60s. Chance of rain 70 percent. Friday Night: Partly cloudy. Lows in the mid 40s. Saturday: Partly sunny. Patchy fog. Highs in the mid 60s. Saturday Night: Mostly cloudy. Lows in the upper 40s. Sunday: Mostly cloudy in the morning, then becoming partly sunny. Highs in the mid 60s. Sunday Night: Partly cloudy. Patchy fog. Lows in the mid 40s. Monday: Partly sunny. Patchy fog. Highs in the mid 60s. Monday Night: Mostly cloudy with a 20 percent chance of rain. Patchy fog. Lows in the upper 40s. Tuesday: Mostly cloudy with a 20 percent chance of rain. Patchy fog. Highs in the mid 60s. | |
| Zone Forecast: Tualatin Valley | |
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