An upper level low (shaded area) is still bringing cold modified Arctic air through Canada to us. It will slowly slide to the south to California. The colder weather will last until the weekend, then it will warm up a bit and get wet. Friday night and Saturday morning could see a wintery mix of rain, freezing rain, and even light snow flurries continuing before changing to rain Saturday afternoon .

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For the Willamette Valley: There  will be a mix of clouds & sun today high 31-34 partly cloudy overnight low 13-18. Friday a mix of clouds and sun in the morning then mostly cloudy with a slight (20%) chance of rain high 34-37,  mostly cloudy at night with a (40%) chance of rain, light freezing rain, and snow mix low 28-30. AM rain and light freezing rain likely (60%) Saturday then rain likely for the afternoon high near 40.  Saturday night rain will be likely (60%) and it will be warmer low 34-36. Mostly cloudy Sunday with a (50%) chance of showers high 44-46. Mostly cloudy with a (50%) chance of rain Sunday night lows 37-40. Mostly cloudy with rain likely (60-70%) Monday through Wednesday highs 44-50 lows 35-40.

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For the Umpqua Basin: Today will be sunny in the AM then partly cloudy by afternoon high 36-42.  Thursday night mostly cloudy low 24-27. Friday mostly cloudy with a slight (20%) chance of rain and snow (snow level 3,000′ in the afternoon high 36-40. Chance of rain  (50%) Friday night and a bit warmer low 36-39. Rain will be likely Saturday through Wednesday highs warming slowly from 45-50 lows in the upper 30s to near 40.

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Advisories: For the South Oregon Coast:  A FREEZE WARNING IS IN EFFECT  UNTIL 9 AM TODAY. FREEZE WARNING IS IN EFFECT FROM 11 PM TONIGHT THROUGH 9 AM FRIDAY  .

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Forecast for the South Coast: Skies will be partly cloudy today high 42-44, then mostly cloudy at night low 34-36. Mostly cloudy Friday with a  slight (20%) chance of rain at the shore, but a 30% chance of rain/snow mix inland high 47. Mostly cloudy rain likely (60%) and not as cool Friday night low near 39-43. Rain likely Saturday, Saturday night, and Sunday high 48-50 low 42. Chance of rain (50%) Sunday night low in the low 40s. Rain likely (60%) Monday through Wednesday highs 50-54 lows near 45.

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For the Cascades: The free air freezing level will be at the surface today going to 2,500′ this afternoon, then back to the surface after midnight. The snow level will be at 2 ,500′ Friday,  and at 3,000′ Friday night a winter mix of rain, snow, & freezing rain the snow level will be at 3,500′. The snow level will be at 3,500′  Saturday and Saturday night, down to the surface Sunday and Sunday night. Monday the snow level will back to 3,000′, 4,000′ Monday night, and 5,000′ Tuesday, and 4,500′ Tuesday night and Wednesday .

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The weekly quiz question was correctly answered so the next quiz will start next Monday. To see the winner go back to the post where it was announced.