Northwest U.S. Long Range Weather Forecast for December 15th 2025 to January 14th 2026
Includes Idaho, Oregon, Washington
December 2025
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12Changeable: sun, clouds, risk of shower.
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16Chilly, dry.
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20Showers WA, OR.
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24Very unsettled.
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28Clearing skies for New Year's Eve.
January 2026
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1Chilly start to 2026.
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4Warmer, clear skies.
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8Frigid, snow in northern ID, eastern WA.
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12Bitter temperatures, clear skies.
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