| NWS Forecast for: Waltham MA Issued by: National Weather Service Norton, MA Last Update: 3:30 pm EDT Jun 20, 2025 | |
Tonight: Mostly clear, with a low around 15. West wind 19 to 24 km/h decreasing to 8 to 13 km/h in the evening. Winds could gust as high as 47 km/h. Saturday: Sunny, with a high near 30. West wind 8 to 16 km/h. Saturday Night: A chance of showers and thunderstorms, mainly after 3am. Increasing clouds, with a low around 21. South wind 8 to 10 km/h. Chance of precipitation is 30%. Sunday: A chance of showers and thunderstorms, mainly before 3pm. Partly sunny and hot, with a high near 34. Heat index values as high as 37. Southwest wind 14 to 23 km/h. Chance of precipitation is 30%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms. Sunday Night: Partly cloudy, with a low around 24. West wind 8 to 10 km/h. Monday: Sunny and hot, with a high near 37. West wind 5 to 10 km/h. Monday Night: Partly cloudy, with a low around 24. West wind 8 to 10 km/h. Tuesday: Sunny and hot, with a high near 38. West wind 8 to 13 km/h. Tuesday Night: Mostly clear, with a low around 24. Northwest wind around 10 km/h. Wednesday: Mostly sunny, with a high near 29. Northeast wind around 11 km/h. Wednesday Night: Partly cloudy, with a low around 18. East wind 5 to 8 km/h becoming south after midnight. Thursday: Partly sunny, with a high near 26. East wind around 11 km/h. Thursday Night: A chance of showers. Mostly cloudy, with a low around 17. East wind 8 to 10 km/h. Chance of precipitation is 30%. Friday: A chance of showers. Partly sunny, with a high near 24. Southeast wind 10 to 13 km/h. Chance of precipitation is 30%. | |
| Waltham MA 42.39°N 71.27°W (Elev. 197 m) | |
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