cool and wet

Happy Halloween! After warm and sunny weather the past couple of days (high temp of 80 degrees Monday; 77 yesterday), there will be a drastic change to the weather starting today. A quick-moving cold front will spread valley rain and mountain snow across Northern California later today and tonight. This is a warm storm, so snow levels will be above 6500 feet and mainly above pass level. Up to six inches of snow will fall above that elevation, while a quarter to a half inch of rain will accumulate in the valley between this evening and tomorrow morning. Showers will taper off by midday tomorrow, and the sun and warmth return for the weekend. For Treat Street today in downtown Chico from 2-5pm, expect mostly cloudy skies and breezy conditions (generally 10-20 mph winds from the south). It will be mostly dry, as the rain will hold off until after dark. Treat Street is an annual Halloween event, in which you can take your little goblins to downtown merchants and receive free candy. Sounds like fun to me! Unfortunately I'll be at work during that time; plus I don't have any little goblins. Anyway, if you are going, bring an umbrella as a back up and wear a jacket. Here is Chico's seven day forecast from the National Weather Service: Today A 20 percent chance of rain after 11am. Mostly cloudy, with a high near 66. South southeast wind 10 to 15 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible. Tonight Rain. Low around 53. Southeast wind 10 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible. Thursday A 40 percent chance of showers before 11am. Partly sunny, with a high near 67. Southeast wind around 6 mph becoming calm in the morning. Thursday Night Partly cloudy, with a low around 45. North northeast wind 3 to 5 mph. Friday Mostly sunny, with a high near 69. Light and variable wind becoming west northwest around 5 mph in the afternoon. Friday Night Partly cloudy, with a low around 47. Saturday Mostly sunny, with a high near 73. Saturday Night Partly cloudy, with a low around 48. Sunday Sunny, with a high near 74. Sunday Night Mostly clear, with a low around 49. Monday Sunny, with a high near 75. Monday Night Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 48. Tuesday Patchy fog before 11am. Otherwise, mostly sunny, with a high near 72.