Current Conditions

Belmont, Massachusetts

69°F21°C
Cloudy

Wind

ESE 6 mph10 km/h

Humidity

72%

Cloud Cover

99%

As of Wednesday, September 2, 2026 at 10:49 AM EDT

Today's Outlook

Day

Overcast and warm, with a high of 72°F22°C and morning low of 65°F18°C. Breezy from the ESE at 6 to 8 mph10 to 13 km/h.

Night

Overcast, with a low around 65°F18°C. Breezy from the SE at 7 mph11 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
CloudyHigh 72°F22°CLow 65°F18°CPrecip 0 in0.1 mm4%Cloud 97%Wind ESE 6 mph10 km/hWednesday: Overcast and warm, with a high of 72°F22°C and morning low of 65°F18°C. Breezy from the ESE at 6 to 8 mph10 to 13 km/h. Wednesday Night: Overcast, with a low around 65°F18°C. Breezy from the SE at 7 mph11 km/h.
RainHigh 78°F25°CLow 64°F18°CPrecip 0.61 in15.4 mm100%Cloud 85%Wind SSE 6 mph9 km/hThursday: Overcast and warm, with a high of 78°F25°C and morning low of 66°F19°C. Light wind from the SSW around 5 mph9 km/h. 100% chance of rain throughout the day. Humid. Thursday Night: Overcast, with a low around 64°F18°C. Breezy from the SSE at 6 to 8 mph9 to 13 km/h. 95% chance of rain throughout the night.
DrizzleHigh 80°F27°CLow 67°F19°CPrecip 0.04 in0.9 mm20%Cloud 51%Wind NW 5 mph8 km/hFriday: Partly cloudy and warm, with a high of 80°F27°C and morning low of 68°F20°C. Light wind from the NW around 5 mph8 km/h. 20% chance of drizzle in the morning. Friday Night: Mostly cloudy, with a low around 67°F19°C. Breezy from the NW at 5 to 8 mph9 to 14 km/h. 11% chance of drizzle before dawn.
ShowersHigh 72°F22°CLow 64°F18°CPrecip 0.09 in2.2 mm62%Cloud 48%Wind N 9 mph14 km/hSaturday: Mostly cloudy and warm, with a high of 72°F22°C and morning low of 67°F19°C. Breezy from the NNE at 9 to 10 mph14 to 16 km/h. 62% chance of showers throughout the day. Saturday Night: Partly cloudy, with a low around 64°F18°C. Breezy from the NNW at 8 to 9 mph13 to 14 km/h. 37% chance of drizzle in the evening.
DrizzleHigh 71°F22°CLow 60°F15°CPrecip 0.02 in0.5 mm12%Cloud 36%Wind N 8 mph13 km/hSunday: Partly cloudy and warm, with a high of 71°F22°C and morning low of 61°F16°C. Breezy from the N at 9 to 11 mph15 to 17 km/h. Sunday Night: Partly cloudy, with a low around 60°F15°C. Breezy from the N at 7 to 9 mph11 to 14 km/h. 12% chance of drizzle overnight.
ClearHigh 77°F25°CLow 56°F13°CPrecip 0 in0 mmCloud 19%Wind NW 6 mph9 km/hMonday: Mostly clear and warm, with a high of 77°F25°C and morning low of 60°F16°C. Light wind from the NNW around 5 mph8 km/h. Monday Night: Mostly clear, with a low around 56°F13°C. Breezy from the WNW at 6 to 7 mph10 to 11 km/h.
Partly CloudyHigh 78°F26°CLow 60°F16°CPrecip 0.01 in0.2 mm6%Cloud 50%Wind WNW 6 mph9 km/hTuesday: Mostly cloudy and warm, with a high of 78°F26°C and morning low of 63°F17°C. Light wind from the NW around 5 mph9 km/h. Tuesday Night: Mostly cloudy, with a low around 60°F16°C. Light wind from the W around 6 mph10 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 272°F22°C65°F18°C0 in0.1 mm· 4%97%CloudyESE 6 mph10 km/h
ThursdaySep 378°F25°C64°F18°C0.61 in15.4 mm· 100%85%RainSSE 6 mph9 km/h
FridaySep 480°F27°C67°F19°C0.04 in0.9 mm· 20%51%DrizzleNW 5 mph8 km/h
SaturdaySep 572°F22°C64°F18°C0.09 in2.2 mm· 62%48%ShowersN 9 mph14 km/h
SundaySep 671°F22°C60°F15°C0.02 in0.5 mm· 12%36%DrizzleN 8 mph13 km/h
MondaySep 777°F25°C56°F13°C0 in0 mm· —19%ClearNW 6 mph9 km/h
TuesdaySep 878°F26°C60°F16°C0.01 in0.2 mm· 6%50%Partly CloudyWNW 6 mph9 km/h
WednesdaySep 978°F26°C62°F16°C0.03 in0.8 mm· 11%67%DrizzleSW 8 mph12 km/h
ThursdaySep 1084°F29°C70°F21°C0.06 in1.5 mm· 15%56%DrizzleWSW 10 mph16 km/h
FridaySep 1179°F26°C67°F20°C0.06 in1.6 mm· 10%45%DrizzleWNW 8 mph13 km/h
SaturdaySep 1275°F24°C63°F17°C0.12 in3 mm· 18%57%ShowersWSW 7 mph12 km/h
SundaySep 1376°F24°C64°F18°C0.15 in3.9 mm· 22%60%ShowersWSW 8 mph12 km/h
MondaySep 1475°F24°C63°F17°C0.07 in1.7 mm· 14%59%DrizzleWSW 8 mph12 km/h
TuesdaySep 1573°F23°C62°F17°C0.11 in2.9 mm· 20%55%ShowersW 7 mph12 km/h
WednesdaySep 1673°F23°C60°F15°C0.06 in1.5 mm· 13%50%DrizzleWNW 7 mph11 km/h

Nearby Cities

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

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Coordinates: 42.3959°N, 71.1787°W·Elevation: 21m·Timezone: America/New_York·Population: 24,729