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Willamina, OR Weather Forecast
Willamina, OR Weather Forecast Date: 202 PM PDT Thu Sep 03 2026
The area/counties/county of: West Central Willamette Valley, including the cities of: Mcminnville, Newberg, Sheridan, Dallas, and Monmouth.or toggle through each period.
This Afternoon... Showers likely with a chance of thunderstorms. Highs in the lower 60s. South wind 5 to 10 mph. Chance of rain 70%. Rainfall amounts around a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight... Mostly cloudy. Showers likely with a slight chance of thunderstorms in the evening, then a chance of showers after midnight. Patchy fog after midnight. Lows around 50. Winds light. Chance of rain 70%. Rainfall amounts a tenth to a quarter of an inch, except higher amounts possible in thunderstorms.
Friday... Mostly cloudy in the morning, then becoming partly sunny. Patchy fog in the morning. A chance of showers with a slight chance of thunderstorms. Highs around 70. Winds light. Chance of rain 50%. Rainfall amounts less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night... Mostly cloudy with a 20% chance of showers. Patchy fog after midnight. Lows in the upper 40s. Light and variable winds.
Saturday... Areas of fog in the morning. Partly sunny with a 20% chance of showers. Highs in the mid 70s. Light and variable winds, becoming light in the afternoon.
Saturday Night... Partly cloudy in the evening, then becoming mostly cloudy. A 20% chance of showers. Lows around 50.
Sunday... Mostly cloudy in the morning, then becoming partly sunny. A 30% chance of showers. Highs in the mid 70s.
Sunday Night... Mostly cloudy in the evening, then becoming partly cloudy. A 20% chance of rain. Lows in the lower 50s.
Labor Day... Mostly sunny with a 20% chance of rain. Highs in the mid 70s.
Monday Night... Partly cloudy. Lows in the lower 50s.
Tuesday... Mostly sunny. Highs in the upper 70s.
Tuesday Night... Partly cloudy. Lows in the lower 50s.
POP = Probability of Precipitation
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