| NWS Forecast for: Cowlitz County Lowlands Issued by: National Weather Service Portland, OR Last Update: 1127 PM PDT Tue Sep 8 2026 | |
| Overnight: Mostly clear. Lows in the lower 50s. Winds light. Wednesday: Sunny. Highs in the mid 80s. Winds light. Wednesday Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 50s. Winds light. Thursday: Patchy fog in the morning. Mostly cloudy. Highs in the mid 70s. West wind 5 to 10 mph. Thursday Night: Partly cloudy. Patchy fog after midnight. Lows around 50. West wind 5 to 10 mph in the evening, becoming light and variable. Friday: Mostly cloudy. Highs in the upper 60s. Friday Night: Mostly cloudy with rain likely. Lows in the lower 50s. Chance of rain 70 percent. Saturday: Rain likely with a slight chance of thunderstorms. Patchy fog. Highs in the mid 60s. Chance of rain 70 percent. Saturday Night: Mostly cloudy with a 40 percent chance of rain. Lows around 50. Sunday: Mostly cloudy. Highs in the lower 70s. Sunday Night: Mostly clear. Lows around 50. Monday: Mostly sunny. Highs in the mid 70s. Monday Night: Mostly clear. Lows in the lower 50s. Tuesday: Partly sunny. Highs in the mid 70s. | |
| Zone Forecast: Cowlitz County Lowlands | |
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