Waltham, MA Weather Forecast
Local 7-day forecast
Areas Of Fog then Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Waltham, MA in one place.
Areas of fog before 7am. Sunny, with a high near 82. Southwest wind 3 to 13 mph.
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: Aug 23, 2026 7:45 PM EDT.
The active forecast window currently covers Aug 24 to Aug 29, 2026 for Waltham, MA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 24 to Aug 29, 2026
- Latest sync
- Aug 23, 2026 7:45 PM EDT
- Forecast office
- BOX
- Source
- NOAA / NWS
Daily Outlook
This Week in Waltham
Friday looks like the warmest upcoming period in Waltham at 84 degrees F.
Monday Night is the coolest period ahead with temperatures near 59 degrees F.
The strongest winds are forecast for Monday at about 3 to 13 mph SW.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 23, 2026 7:45 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
Partly cloudy, with a low around 59. West wind 3 to 8 mph.
Sunny, with a high near 80. West wind 5 to 9 mph.
Mostly clear, with a low around 59. West wind 3 to 8 mph.
Sunny, with a high near 82. West wind 2 to 6 mph.
Mostly clear, with a low around 63. Southwest wind 1 to 6 mph.
Mostly sunny, with a high near 83. South wind 1 to 10 mph.
A slight chance of rain showers before 8pm, then a slight chance of showers and thunderstorms between 8pm and 9pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 67. South wind 3 to 9 mph. Chance of precipitation is 50%.
A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 84. South wind 3 to 8 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 64. West wind 2 to 6 mph. Chance of precipitation is 30%.
Mostly sunny, with a high near 83. Northwest wind 2 to 6 mph.
Mostly clear, with a low around 60. Northwest wind around 5 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Monday
Aug 24
|
Areas Of Fog then Sunny
|
82°F |
3 to 13 mph
SW
|
|
Monday Night
Aug 24
|
Partly Cloudy
|
59°F |
3 to 8 mph
W
|
|
Tuesday
Aug 25
|
Sunny
|
80°F |
5 to 9 mph
W
|
|
Tuesday Night
Aug 25
|
Mostly Clear
|
59°F |
3 to 8 mph
W
|
|
Wednesday
Aug 26
|
Sunny
|
82°F |
2 to 6 mph
W
|
|
Wednesday Night
Aug 26
|
Mostly Clear
|
63°F |
1 to 6 mph
SW
|
|
Thursday
Aug 27
|
Mostly Sunny
|
83°F |
1 to 10 mph
S
|
|
Thursday Night
Aug 27
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
67°F |
3 to 9 mph
S
|
|
Friday
Aug 28
|
Chance Rain Showers
|
84°F |
3 to 8 mph
S
|
|
Friday Night
Aug 28
|
Chance Showers And Thunderstorms then Partly Cloudy
|
64°F |
2 to 6 mph
W
|
|
Saturday
Aug 29
|
Mostly Sunny
|
83°F |
2 to 6 mph
NW
|
|
Saturday Night
Aug 29
|
Mostly Clear
|
60°F |
5 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Waltham.
