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Here is my weekly weather quiz question. What is the wettest place in the world? An extra cheer for you if you can tell me the average rainfall there. Please post your answer as a comment after the forecasts. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. Good luck.

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An upper level low over Eastern Oregon (see “U” shaped area of white line) that has been keeping us in the onshore air flow is moving to the East. High pressure will start to build up giving us offshore flow and warming us up quite a bit Friday, Saturday, and Sunday. Another trough of low pressure will develop and move toward us Monday to Tuesday cooling us back down again.There is still smoke high in the atmosphere over us from Canadian fires. So far that smoke has not come down to the surface. Smoke is still collecting over the Deschutes National Forest near Sisters and could slowly move toward us if and when the offshore airflow returns pushing the smoke from East to West.

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Advisories: NONE AT THIS TIME.

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The summer Pollen Count Forecast season for the Eugene-Springfield area is over. From Allergy and Asthma Research Group.

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Here are your detailed forecasts. **

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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: AM clouds then sunny and warmer today,  clear tonight, sunny and warmer Friday, and clear Friday night highs 89-92 lows 53-55. Sunny and warmer  Saturday and Sunday, clear at night  highs 94-96  low 55. Mostly sunny and cooler Monday through Wednesday, mostly clear at night highs 92-79 lows near 52. (seasonal averages high 82 low 51)

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Forecast for the Umpqua Basin including, Roseburg:  AM clouds then sunny today,  clear tonight, sunny Friday and Saturday, and clear Friday night highs 90-94 cooling a bit to near 90 Saturday lows 55-59. Mostly clear Saturday night and Sunday night, and mostly sunny Sunday lows 56 high 95. Mostly sunny and warmer again Monday, then cooling Tuesday and Wednesday, mostly clear nights highs 99-89  lows near 58. (seasonal averages high 87 low 55)

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Forecast for the South Oregon Coast including Coos Bay and North Bend: AM clouds with patchy coastal fog, then sunny this afternoon, clear  in the evening and mostly cloudy tonight at the shore and clear inland  high 60 low 48. AM clouds  and mostly sunny in the afternoon at the shore and sunny inland Friday, clear in the evening, partly cloudy Friday night and Saturday AM, and sunny Saturday afternoon highs 60-63 low near 50. Mostly cloudy with patchy fog Saturday night and Sunday, then partly cloudy Sunday night and mostly cloudy Monday through Wednesday  lows near 50-52 highs 60-66. (seasonal averages high 68 low 53).

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Forecast for the Cascades of Lane County:  Mostly sunny today, clear at night,  sunny and warmer Friday through Sunday, and clear nights free air freezing level 15,000 ft. today, 16,000 ft. tonight through Sunday night highs 80-85 lows 45-50. Mostly sunny  and warmer  Monday then cooler Tuesday and  Wednesday, and mostly clear nights free air freezing level 16,000 ft. falling to 15,000 ft. Tuesday through Wednesday highs 90-80 lows near 49.

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**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.