Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County- Including Arvada, Boulder, Golden, Lakewood, and Longmont 403 AM MDT Fri Mar 29 2024 .TODAY...Mostly cloudy. Slight chance of rain showers late in the morning. Chance of rain showers in the afternoon. Highs in the 50s. Chance of rain 30 percent. .TONIGHT...Cloudy. Chance of rain showers and slight chance of thunderstorms in the evening, then a slight chance of rain showers after midnight. Lows in the lower 30s. Chance of rain 40 percent. .SATURDAY...Mostly cloudy in the morning, then becoming partly cloudy. Highs near 60. .SATURDAY NIGHT...Mostly clear. Lows in the mid 30s. .SUNDAY...Partly cloudy with a 30 percent chance of rain showers. Highs 57 to 63. West winds 10 to 15 mph with gusts up to 35 mph. .SUNDAY NIGHT...Mostly cloudy with a chance of rain showers, snow showers and slight chance of thunderstorms. Lows in the lower 30s. Chance of precipitation 40 percent. .MONDAY...Rain and snow showers likely. Colder. Highs in the mid 40s. Chance of precipitation 60 percent. .MONDAY NIGHT...Mostly cloudy with a slight chance of rain and snow showers. Lows in the upper 20s. Chance of precipitation 20 percent. .TUESDAY AND TUESDAY NIGHT...Mostly clear. Highs in the mid to upper 50s. Lows in the mid 30s. .WEDNESDAY THROUGH THURSDAY...Mostly clear. Highs 63 to 70. Lows in the mid to upper 30s. $$