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The jet stream is set up as a trough of low pressure over the Pacific Northwest. A storm system is moving toward us from the southwest and will bring precipitation with it. The next storm will hit us Tuesday. Another strong frontal system will move in between Thursday and Friday.

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Advisories: None

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Forecast for the Central and Southern Willamette Valley:  Mostly cloudy today high 42-45. Partly cloudy early and mostly cloudy late tonight low in the low 30s. A (40%) chance of rain Tuesday with rain at night high 42-45 low in the mid 30s. Showers likely (60%) Wednesday with a good (50%) chance Wednesday night high 45-48 low 32-34. Mostly cloudy with rain likely (60%) Thursday and at night high in the low 40s low in the upper 30s. Rain likely (60%) New Year’s Day with a good (50%)) chance at night high near 50 low near 40. Saturday through Sunday a good (50%) chance of rain highs mid to upper 40s low 36-39.

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Forecast for the Umpqua Basin including Roseburg:  Patchy fog this morning then just mostly cloudy high 45. Mostly cloudy with fog late at night low 34. Cloudy (40%) chance of rain Tuesday morning then rain in the afternoon and at night ( snow level 3,000′ late) high near 42 low in  the mid 30s. Showers likely (60%) Wednesday and a good (50%) chance of overnight  showers high 46 low 34. Rain likely (60%)  Thursday high 46. Rain likely (60%) Thursday night and Friday (New Year’s Day)  low near 40 high near 50. Mostly cloudy with a good (50%) chance of rain Friday night, Saturday and Saturday night lows near 43 high near 50. Sunday showers likely (60%) high back down to the mid 40s.

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Forecast for the South Oregon Coast: Mostly cloudy today with a slight (20%) chance of showers along the shoreline high near 40.  Mostly cloudy tonight low near 40. Tuesday AM rain likely (60%) then rain and windy for the afternoon high 50 . Rain and breezy Tuesday night low near 40. Showers Wednesday high 52. Rain likely (60%) Wednesday night through Friday night low 39 high 53. There will be a good (50%) chance of rain Saturday and Saturday night  highs low 50s lows in the mid 40s. Mostly cloudy with showers likely (60%) Sunday high 50.

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Forecast for the Cascades of Lane County: A slight (20%) chance of rain and snow showers today snow level 4,000′. Partly cloudy a slight (20%) chance of snow showers tonight snow level 3,500′. Rain and snow Tuesday snow level holding at 3,500′. Snow Tuesday night snow level 3,000′. Snow showers likely (60%) Wednesday snow level 3,000′. (40%) chance of rain and snow showers Wednesday night snow level 3,000′. A good (50%) chance of rain and snow Thursday snow level still at 3,000′. Thursday night and Friday (New Year’s Day) rain likely (60%) snow level 5,000′-5,500′. Rain and snow likely (60%) Friday night snow level 5,000′. Rain likely Saturday through Sunday snow level holding at 5,500′.