Belmont, MA Weather Forecast
Middlesex County, Massachusetts
Live radar, warnings and storm tracking for Belmont, with free alerts the moment it counts.
The next few hours
A dry evening, mostly sunny
It is 48°, but the wind is taking it down to 45° on exposed skin. The sky is mostly sunny.
Nothing in the next day and a half is wet enough to move plans for.
Taller, warmer bars mean heavier rain. Dotted means no reading for that hour.
Hour by hour
Quiet through the next day and a half
Nothing wet is expected over the next day and a half.
The overnight low settles near 41°. Tomorrow tops out near 55°.
Sunrise and sunset
Next five days, scored 0 to 100The first day or two use the HRRR and NBM cloud layers. Later days only have total cloud, so treat them as a rough guide.
Know when sunset at this place will be worth a photo
We score every sunrise and sunset here from the cloud, haze and smoke forecast, and let you know when one is likely to light up. Sunrise the evening before, sunset a few hours ahead.
Seven-day outlook
33–59°F across the weekThe week runs between 36° and 55°, with tomorrow the warmest day of it. There is no real trend across it: one day looks much like the next. Friday is the wettest day, peaking near 53%. 5 of the 7 days stay dry.
Free alerts for Belmont
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
Belmont, MA at a glance
Belmont is home to about 26,886 people in Middlesex County, across 4.6 square miles. It ranks 73rd by population of 283 places in Massachusetts with a forecast here. The nearest neighbour with its own forecast is Watertown Town, 2 miles away.
- County
- Middlesex County
- Population
- 26,886 2023 est.
- Land area
- 4.6 sq mi
- People per sq mi
- 5,786
- Forecast point
- 42.3953°N, 71.1803°W
How well can the network see Belmont?
The nearest Doppler radar is KBOX (Boston, MA), to the S. Its lowest scan passes about 1,900 ft above Belmont. That is about as close as US radar coverage gets: low-level rotation and gust fronts over Belmont show up clearly. Belmont is closer to its radar than 70% of US cities.
The closest weather station is KBED (Bedford/Hanscom Fld). Representative on most days, though a thunderstorm can hit one and miss the other.
Forecasts near Belmont
- Watertown Town, MA2 mi
- Arlington, MA2 mi
- Waltham, MA3 mi
- Cambridge, MA3 mi
- Somerville, MA4 mi
- Medford, MA4 mi
- Lexington, MA4 mi
- Winchester, MA4 mi
Elsewhere in Massachusetts
BostonWorcesterSpringfieldCambridgeLowellBrocktonAll Massachusetts forecasts →

