National Weather Service Forecast for: Waltham MA
Issued by: National Weather Service Norton, MA
Updated: 2:24 pm EDT May 28, 2026
 
This
Afternoon
This Afternoon: A chance of showers and thunderstorms. Partly sunny, with a high near 72. North wind around 7 mph. Chance of precipitation is 40%.
Chance
Showers
 Tonight

Tonight: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 52. Northwest wind around 6 mph. Chance of precipitation is 30%.
Chance
Showers then
Partly Cloudy
 Friday

Friday: Increasing clouds, with a high near 71. Northwest wind 7 to 9 mph.
Increasing
Clouds
 Friday
Night
Friday Night: Showers and thunderstorms before 3am, then showers likely. Patchy fog after 4am. Low around 45. South wind 5 to 9 mph becoming west after midnight. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Showers and
Patchy Fog
 Saturday

Saturday: Showers, mainly before 2pm. Patchy fog before 9am. High near 55. North wind 14 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 80%.
Showers and
Patchy Fog
 Saturday
Night
Saturday Night: Mostly clear, with a low around 44. Light and variable wind.
Mostly Clear

 Sunday

Sunday: Mostly sunny, with a high near 71. Northwest wind 3 to 7 mph.
Mostly Sunny

 Sunday
Night
Sunday Night: Mostly cloudy, with a low around 52. Southwest wind around 6 mph.
Mostly Cloudy

 Monday

Monday: Showers likely, mainly after 2pm. Partly sunny, with a high near 68. West wind 5 to 8 mph becoming north in the afternoon. Chance of precipitation is 60%.
Showers
Likely
Hi 72 °F Lo 52 °F Hi 71 °F Lo 45 °F Hi 55 °F Lo 44 °F Hi 71 °F Lo 52 °F Hi 68 °F

 

This Afternoon
 
 A chance of showers and thunderstorms. Partly sunny, with a high near 72. North wind around 7 mph. Chance of precipitation is 40%.
Tonight
 
 A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 52. Northwest wind around 6 mph. Chance of precipitation is 30%.
Friday
 
 Increasing clouds, with a high near 71. Northwest wind 7 to 9 mph.
Friday Night
 
 Showers and thunderstorms before 3am, then showers likely. Patchy fog after 4am. Low around 45. South wind 5 to 9 mph becoming west after midnight. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
 
 Showers, mainly before 2pm. Patchy fog before 9am. High near 55. North wind 14 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 80%.
Saturday Night
 
 Mostly clear, with a low around 44. Light and variable wind.
Sunday
 
 Mostly sunny, with a high near 71. Northwest wind 3 to 7 mph.
Sunday Night
 
 Mostly cloudy, with a low around 52. Southwest wind around 6 mph.
Monday
 
 Showers likely, mainly after 2pm. Partly sunny, with a high near 68. West wind 5 to 8 mph becoming north in the afternoon. Chance of precipitation is 60%.
Monday Night
 
 A chance of showers before 10pm. Mostly cloudy, with a low around 49. Light northeast wind. Chance of precipitation is 40%.
Tuesday
 
 A chance of showers. Partly sunny, with a high near 65. Light north wind becoming northeast 5 to 9 mph in the morning. Chance of precipitation is 40%.
Tuesday Night
 
 A chance of showers. Partly cloudy, with a low around 49. East wind around 6 mph becoming light and variable in the evening. Chance of precipitation is 30%.
Wednesday
 
 A chance of showers. Mostly sunny, with a high near 68. North wind 6 to 8 mph. Chance of precipitation is 30%.
Wednesday Night
 
 Partly cloudy, with a low around 52. East wind around 5 mph becoming light and variable.
Thursday
 
 Sunny, with a high near 77.

 

Forecast from NOAA-NWS for Waltham MA.