Tuesday
Hot
High:
91°F
Mostly sunny and hot, with a high near 91. Calm wind becoming southwest 5 to 8 mph in the morning.
Waltham, MA Weather - Tomorrow’s Forecast
Tuesday Night
Slight chance of thunderstorms
Overnight low:
69°F
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Southwest wind around 9 mph. Chance of precipitation is 20%.