Current Conditions

Charlestown, Massachusetts

74°F23°C
Clear

Wind

NW 7 mph11 km/h

Humidity

40%

Cloud Cover

1%

As of Thursday, July 23, 2026 at 12:12 PM EDT

Today's Outlook

Day

Mostly clear and warm, with a high of 80°F26°C and morning low of 66°F19°C. Breezy from the NW at 6 to 8 mph10 to 13 km/h. Dry air.

Night

Mostly clear, with a low around 66°F19°C. Breezy from the SSW at 6 to 7 mph10 to 12 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
ThursdayJul 23ClearHigh 80°F26°CLow 66°F19°CPrecip 0 in0 mmCloud 6%Wind W 6 mph10 km/hThursday: Mostly clear and warm, with a high of 80°F26°C and morning low of 66°F19°C. Breezy from the NW at 6 to 8 mph10 to 13 km/h. Dry air. Thursday Night: Mostly clear, with a low around 66°F19°C. Breezy from the SSW at 6 to 7 mph10 to 12 km/h.
FridayJul 24ClearHigh 81°F27°CLow 60°F16°CPrecip 0 in0 mmCloud 8%Wind S 6 mph9 km/hFriday: Mostly clear and warm, with a high of 81°F27°C and morning low of 67°F20°C. Breezy from the SE at 5 to 9 mph8 to 15 km/h. Friday Night: Mostly clear, with a low around 60°F16°C. Breezy from the SSW at 7 to 9 mph11 to 14 km/h.
SaturdayJul 25ClearHigh 78°F25°CLow 60°F16°CPrecip 0 in0 mmCloud 9%Wind ESE 6 mph9 km/hSaturday: Mostly clear and warm, with a high of 78°F25°C and morning low of 68°F20°C. Breezy from the E at 7 to 9 mph11 to 15 km/h. Saturday Night: Mostly clear, with a low around 60°F16°C. Light wind from the SSE around 5 mph8 km/h.
SundayJul 26ClearHigh 76°F24°CLow 60°F15°CPrecip 0.01 in0.3 mm2%Cloud 24%Wind E 6 mph9 km/hSunday: Mostly clear and warm, with a high of 76°F24°C and morning low of 65°F18°C. Breezy from the ENE at 6 to 8 mph10 to 13 km/h. Sunday Night: Mostly clear, with a low around 60°F15°C. Light wind from the E around 5 mph8 km/h.
MondayJul 27DrizzleHigh 79°F26°CLow 62°F16°CPrecip 0.03 in0.7 mm19%Cloud 41%Wind SSE 6 mph10 km/hMonday: Partly cloudy and warm, with a high of 79°F26°C and morning low of 67°F19°C. Breezy from the SSE at 6 to 9 mph10 to 15 km/h. 19% chance of drizzle in the afternoon. Monday Night: Partly cloudy, with a low around 62°F16°C. Breezy from the S at 6 to 8 mph10 to 13 km/h. 10% chance of drizzle in the evening.
TuesdayJul 28Light RainHigh 76°F25°CLow 67°F19°CPrecip 0.31 in7.9 mm69%Cloud 83%Wind S 8 mph12 km/hTuesday: Overcast and warm, with a high of 76°F25°C and morning low of 70°F21°C. Breezy from the S at 8 to 9 mph13 to 15 km/h. 69% chance of light rain throughout the day. Humid. Tuesday Night: Mostly cloudy, with a low around 67°F19°C. Breezy from the S at 7 to 8 mph12 to 13 km/h. 49% chance of light rain throughout the night.
WednesdayJul 29Light RainHigh 75°F24°CLow 68°F20°CPrecip 0.4 in10.2 mm51%Cloud 72%Wind NNW 7 mph11 km/hWednesday: Mostly cloudy and warm, with a high of 75°F24°C and morning low of 69°F21°C. Breezy from the N at 7 mph11 km/h. 51% chance of light rain throughout the day. Humid. Wednesday Night: Mostly cloudy, with a low around 68°F20°C. Breezy from the W at 7 mph11 km/h. 44% chance of showers throughout the night.

15-Day Forecast

Day High (°F) Low (°F) Precip (mm) Cloud Cover (%) Condition Wind (mph)

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.

WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →

Access WeatherMesh forecasts programmatically via our API. API Documentation →

How to Access Weather Forecasts

PatternExampleDescription
/weather/{country}/{city}//weather/united-states/san-francisco/City forecast (canonical URL)
/weather/{city}//weather/tokyo/Shorthand — redirects to most populous match
/weather/{country}/{region}/{city}//weather/united-states/california/san-francisco/With region — redirects to canonical
/weather/nearby?lat={lat}&lon={lon}/weather/nearby?lat=48.1&lon=11.5Find nearest city by coordinates
/weather/{country}//weather/germany/Country index — all cities by region

Country and city names use lowercase slugs with hyphens (e.g. united-states, san-francisco). Arbitrary city names are supported — if not in our database, we geocode the name and serve the forecast for that location.

For programmatic access, use theWindBorne Forecast APIwhich returns structured JSON for any coordinates worldwide.

Coordinates: 42.3779°N, 71.0620°W·Elevation: 13m·Timezone: America/New_York·Population: 20,397