NimbocastWaltham, MA Weather
Live radar, hourly and 7-day forecast, and National Weather Service alerts for Waltham, Middlesex County, Massachusetts.
Updated Jul 29, 2026, 5:05 PM local time · Radar refreshes every 5 minutes
☁️
Waltham
68°F
Wind 11 mph
Humidity 96%
Cloud cover 100%
UV index 2
Alerts 0
Active alerts
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No active National Weather Service alerts for Waltham, MA.
Waltham weather radar
Light
Heavy
Next 24 hours
Now
🌦️
68°F
77%
6 PM
🌦️
67°F
64%
7 PM
🌧️
66°F
73%
8 PM
🌦️
66°F
77%
9 PM
🌧️
67°F
67%
10 PM
🌦️
67°F
58%
11 PM
🌧️
67°F
36%
12 AM
🌧️
67°F
41%
1 AM
🌦️
67°F
47%
2 AM
🌦️
67°F
52%
3 AM
🌦️
67°F
34%
4 AM
🌦️
67°F
31%
5 AM
🌦️
67°F
27%
6 AM
🌦️
66°F
25%
7 AM
🌦️
66°F
28%
8 AM
🌦️
67°F
27%
9 AM
🌦️
66°F
32%
10 AM
🌦️
67°F
28%
11 AM
☁️
67°F
26%
12 PM
☁️
66°F
22%
1 PM
☁️
67°F
23%
2 PM
☁️
66°F
27%
3 PM
☁️
65°F
22%
4 PM
☁️
65°F
19%
7-day forecast
Today
Jul 29
🌧️
71°F
66°F
88%
Thu
Jul 30
🌧️
67°F
64°F
52%
Fri
Jul 31
☁️
80°F
65°F
24%
Sat
Aug 1
🌦️
89°F
64°F
5%
Sun
Aug 2
☁️
85°F
68°F
27%
Mon
Aug 3
🌧️
75°F
67°F
27%
Tue
Aug 4
☁️
88°F
62°F
10%
Weather near Waltham
3 mi
Newton, MA3 mi
Watertown, MA3 mi
Belmont, MA4 mi
Brighton, MA5 mi
Arlington, MA5 mi
Lexington, MA5 mi
Chestnut Hill, MA6 mi
Needham, MA
Alerts are relayed from the National Weather Service and may lag
the official source. In a life-threatening situation always follow
weather.gov and local emergency
broadcasts.