| NWS Forecast for: Waltham MA Issued by: National Weather Service Norton, MA Last Update: 6:51 pm EDT Jun 22, 2025 |  |
Tonight: Patchy fog between 4am and 5am. Otherwise, partly cloudy, with a low around 21. Northwest wind 5 to 13 km/h. Monday: Patchy fog before 7am. Otherwise, mostly sunny and hot, with a high near 34. Calm wind becoming southeast 5 to 10 km/h in the afternoon. Monday Night: Mostly clear, with a low around 23. Southwest wind around 11 km/h. Tuesday: Sunny and hot, with a high near 38. Heat index values as high as 42. West wind 11 to 13 km/h. Tuesday Night: Mostly clear, with a low around 25. West wind around 10 km/h. Wednesday: Mostly sunny and hot, with a high near 32. North wind around 11 km/h becoming east in the afternoon. Wednesday Night: Partly cloudy, with a low around 19. Southeast wind 3 to 8 km/h. Thursday: A chance of showers after 7am. Mostly cloudy, with a high near 25. East wind 8 to 11 km/h. Chance of precipitation is 30%. Thursday Night: A chance of showers. Mostly cloudy, with a low around 16. Northeast wind 5 to 10 km/h. Chance of precipitation is 40%. Friday: A chance of showers. Mostly cloudy, with a high near 22. East wind 8 to 13 km/h. Chance of precipitation is 40%. Friday Night: Showers likely. Mostly cloudy, with a low around 16. East wind 8 to 10 km/h. Chance of precipitation is 60%. Saturday: A chance of showers. Mostly cloudy, with a high near 22. East wind 10 to 13 km/h. Chance of precipitation is 50%. Saturday Night: A chance of showers. Mostly cloudy, with a low around 17. East wind 5 to 10 km/h becoming north after midnight. Chance of precipitation is 40%. Sunday: Partly sunny, with a high near 26. North wind 8 to 11 km/h becoming southwest in the afternoon. | |
| Waltham MA 42.39°N 71.27°W (Elev. 197 m) | |
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