Waltham, MA Weather Forecast
Local 7-day forecast
Light Rain Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Waltham, MA in one place.
Rain likely and patchy fog before 5pm. Cloudy, with a high near 74. South wind 2 to 7 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Local Weather Overview
This forecast page for Waltham, MA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: May 24, 2026 12:50 PM EDT.
The active forecast window currently covers May 25 to May 30, 2026 for Waltham, MA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 25 to May 30, 2026
- Latest sync
- May 24, 2026 12:50 PM EDT
- Forecast office
- BOX
- Source
- NOAA / NWS
Daily Outlook
This Week in Waltham
Wednesday looks like the warmest upcoming period in Waltham at 88 degrees F.
Friday Night is the coolest period ahead with temperatures near 50 degrees F.
The strongest winds are forecast for Wednesday at about 3 to 10 mph W.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- May 24, 2026 12:50 PM EDT
- Coverage
- 6 days
- Time zone
- America/New_York
- Forecast office
- BOX
- Radar station
- KBOX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly cloudy, with a low around 57. West wind 1 to 5 mph.
Partly sunny, with a high near 81. South wind 1 to 7 mph.
Partly cloudy, with a low around 60. Southwest wind 3 to 7 mph.
Mostly sunny, with a high near 88. West wind 3 to 10 mph.
Partly cloudy, with a low around 59. Northwest wind 3 to 8 mph.
Mostly sunny, with a high near 77. Northwest wind 3 to 8 mph.
Partly cloudy, with a low around 53. Northwest wind 2 to 7 mph.
A chance of rain showers. Mostly sunny, with a high near 72. Northwest wind 3 to 9 mph. Chance of precipitation is 30%.
A chance of rain showers before 11pm. Mostly cloudy, with a low around 50. North wind 3 to 8 mph. Chance of precipitation is 30%.
Mostly sunny, with a high near 70. Northwest wind 3 to 8 mph.
Partly cloudy, with a low around 51. Northwest wind 2 to 6 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Memorial Day
May 25
|
Light Rain Likely
|
74°F |
2 to 7 mph
S
|
|
Monday Night
May 25
|
Mostly Cloudy
|
57°F |
1 to 5 mph
W
|
|
Tuesday
May 26
|
Partly Sunny
|
81°F |
1 to 7 mph
S
|
|
Tuesday Night
May 26
|
Partly Cloudy
|
60°F |
3 to 7 mph
SW
|
|
Wednesday
May 27
|
Mostly Sunny
|
88°F |
3 to 10 mph
W
|
|
Wednesday Night
May 27
|
Partly Cloudy
|
59°F |
3 to 8 mph
NW
|
|
Thursday
May 28
|
Mostly Sunny
|
77°F |
3 to 8 mph
NW
|
|
Thursday Night
May 28
|
Partly Cloudy
|
53°F |
2 to 7 mph
NW
|
|
Friday
May 29
|
Chance Rain Showers
|
72°F |
3 to 9 mph
NW
|
|
Friday Night
May 29
|
Chance Rain Showers then Mostly Cloudy
|
50°F |
3 to 8 mph
N
|
|
Saturday
May 30
|
Mostly Sunny
|
70°F |
3 to 8 mph
NW
|
|
Saturday Night
May 30
|
Partly Cloudy
|
51°F |
2 to 6 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Waltham.
