| NWS Forecast for: Waltham MA Issued by: National Weather Service Norton, MA Last Update: 2:03 pm EDT Jul 14, 2025 | |
Tonight: A chance of showers and thunderstorms. Patchy fog after 3am. Otherwise, cloudy, with a low around 71. Southwest wind 3 to 6 mph. Chance of precipitation is 30%. Tuesday: A slight chance of showers before 2pm, then a slight chance of showers and thunderstorms between 2pm and 3pm. Patchy fog before 8am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 89. Heat index values as high as 95. Southwest wind 3 to 5 mph. Chance of precipitation is 20%. Tuesday Night: Mostly clear, with a low around 71. Southwest wind 3 to 5 mph. Wednesday: Mostly sunny and hot, with a high near 92. Heat index values as high as 99. Calm wind becoming southwest around 6 mph in the afternoon. Wednesday Night: A slight chance of showers between 11pm and 2am, then a slight chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 74. Southwest wind around 6 mph. Chance of precipitation is 20%. Thursday: A chance of showers and thunderstorms, mainly after 9am. Partly sunny and hot, with a high near 90. Southwest wind 6 to 8 mph. Chance of precipitation is 40%. Thursday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 9pm. Partly cloudy, with a low around 75. West wind around 6 mph. Chance of precipitation is 30%. Friday: A chance of showers and thunderstorms after 3pm. Mostly sunny and hot, with a high near 90. West wind around 7 mph. Chance of precipitation is 30%. Friday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 67. North wind 3 to 5 mph. Chance of precipitation is 30%. Saturday: Mostly sunny, with a high near 82. Light and variable wind becoming east around 6 mph in the morning. Saturday Night: Partly cloudy, with a low around 66. Southeast wind around 5 mph becoming calm in the evening. Sunday: A chance of showers and thunderstorms. Partly sunny, with a high near 82. South wind 3 to 6 mph. Chance of precipitation is 30%. Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. South wind around 6 mph. Chance of precipitation is 30%. Monday: Mostly sunny, with a high near 82. North wind 5 to 7 mph. | |
| Waltham MA 42.39°N 71.27°W (Elev. 197 ft) | |
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