...COLD WEATHER ADVISORY IN EFFECT UNTIL 9 AM MST TUESDAY... .TONIGHT...Mostly clear. Lows around 11 below. Southwest winds 10 to 15 mph after midnight. Wind chill readings 20 below to 30 below zero. .TUESDAY...Mostly sunny. Highs in the mid to upper 30s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Wind chill readings 10 below to 20 below zero in the morning. .TUESDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Not as cold. Lows around 15. Northwest winds 10 to 15 mph with gusts up to 30 mph after midnight. .WEDNESDAY...Partly cloudy. Windy. Highs in the lower 30s. Northwest winds 20 to 30 mph with gusts up to 45 mph. .WEDNESDAY NIGHT...Partly cloudy. Lows around 12. Northwest winds 10 to 20 mph with gusts up to 30 mph. .THURSDAY...Partly cloudy. Highs in the lower 30s. .THURSDAY NIGHT...Mostly clear. Lows around 13. .FRIDAY...Partly cloudy. Highs in the mid to upper 40s. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of snow. Lows around 17. .SATURDAY...Cloudy with a 40 percent chance of snow. Colder. Highs in the upper 20s. .SATURDAY NIGHT...Mostly cloudy with a 20 percent chance of snow. Lows 8 to 12. .SUNDAY...Mostly cloudy with a 10 percent chance of snow. Highs in the upper 20s. .SUNDAY NIGHT...Mostly cloudy. Lows around 10. .MONDAY...Partly cloudy. Highs in the lower to mid 30s.