Sunday
Mostly sunny
High:
99°F
A 40 percent chance of showers and thunderstorms after noon. Mostly cloudy through mid morning, then becoming sunny and hot, with a high near 99. West wind around 5 mph becoming calm.
Boulder, CO Weather - Tomorrow’s Forecast
Sunday Night
Slight chance of thunderstorms
Overnight low:
68°F
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly cloudy, with a low around 68. West wind 3 to 7 mph. Chance of precipitation is 20%.