7-Day Zone Forecast for South Washington Cascades (Text-Only)
NWS Forecast for: South Washington Cascades
Issued by: National Weather Service Portland, OR
Last Update: 501 AM PDT Sat Sep 5 2026


Today: Partly sunny with a 50 percent chance of thunderstorms. Patchy fog this afternoon. Free air freezing level 8000 feet. Winds light. Rainfall amounts a tenth to a quarter of an inch.

Tonight: Partly cloudy in the evening, then becoming mostly cloudy. Patchy fog in the evening. Free air freezing level 9000 feet. Winds light.

Sunday: Mostly cloudy with a slight chance of rain showers in the morning, then partly sunny with a chance of rain showers in the afternoon. Snow level 7500 feet. Winds light. Chance of rain 50 percent. Rainfall amounts a tenth to a quarter of an inch.

Sunday Night: Mostly cloudy. A chance of rain showers, mainly in the evening. Snow level 7500 feet. Winds light. Chance of rain 40 percent.

Labor Day: Partly sunny. Free air freezing level 9000 feet, increasing to free air freezing level 10000 feet in the afternoon. West wind 5 to 10 mph.

Monday Night: Partly cloudy. Free air freezing level 11000 feet.

Tuesday: Mostly sunny. Free air freezing level 12000 feet.

Tuesday Night: Mostly clear. Free air freezing level 13000 feet.

Wednesday: Sunny. Free air freezing level 14000 feet.

Wednesday Night: Mostly clear. Free air freezing level 14000 feet.

Thursday: Mostly sunny. Free air freezing level 13000 feet.

Thursday Night: Partly cloudy. Free air freezing level 13000 feet.

Friday: Partly sunny with a 30 percent chance of rain. Snow level above 8000 feet.







Zone Forecast: South Washington Cascades

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