Today A 50 percent chance of snow, mainly before 11am. Cloudy, with a high near 7. Wind chill values as low as -13. North northwest wind 10 to 15 mph. Total daytime snow accumulation of less than a half inch possible.   Tonight A slight chance of snow between midnight and 3am. Cloudy, with a low around -4. Wind chill values as low as -14. North northwest wind 5 to 10 mph becoming west southwest after midnight. Chance of precipitation is 20%.     Thursday Patchy blowing snow between 1pm and 3pm. Mostly sunny, with a high near 11. Wind chill values as low as -19. West southwest wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.   Thursday Night Partly cloudy, with a low around -19. Wind chill values as low as -31. Northwest wind 5 to 10 mph becoming northeast after midnight.     Friday A 20 percent chance of snow after noon. Mostly cloudy, with a high near 8. East northeast wind 5 to 10 mph becoming south southeast in the afternoon.   Friday Night A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 1. Southeast wind 5 to 10 mph.