Live Weather & Forecast
Weather in Charlestown
Massachusetts, United States · Real-time conditions & 3-day outlook
24°C
Feels like 25°C
75°F / Feels 78°F
Partly cloudy
Charlestown, Massachusetts
🌞 Daytime
Updated: 2026-04-15 15:30
Humidity
50%
Wind
7.2 km/h WSW
Wind Gust
8.3 km/h
Pressure
1010 mb
Visibility
16 km
UV Index
1.7
(Low)
Precipitation
0.02 mm
Cloud Cover
75%
Dew Point
15.6°C
Wind Degree
240°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
177.9 μg/m³
NO₂
7.7 μg/m³
O₃
87 μg/m³
SO₂
1.6 μg/m³
PM 2.5
8.9 μg/m³
PM 10
9.4 μg/m³
Today's Hourly Forecast
24-hour breakdown for Charlestown, Massachusetts
12 AM
17°
Clear
1 AM
16°
Partly Cloudy
2 AM
16°
Clear
3 AM
15°
Clear
4 AM
14°
Clear
5 AM
13°
Clear
6 AM
13°
Clear
7 AM
14°
Sunny
8 AM
15°
Sunny
9 AM
16°
Sunny
10 AM
18°
Sunny
11 AM
19°
Sunny
12 PM
21°
Sunny
1 PM
23°
Sunny
2 PM
24°
Patchy rain nearby
3 PM
24°
Partly cloudy
4 PM
26°
Cloudy
5 PM
26°
Sunny
6 PM
25°
Sunny
7 PM
23°
Sunny
8 PM
21°
Clear
9 PM
20°
Clear
10 PM
19°
Clear
11 PM
19°
Clear
3-Day Forecast
Daily overview for Charlestown, Massachusetts
Today
Sunny
27°
/
12°
🌧️ 0% chance of rain
💧 Avg. humidity: 74%
💨 Max wind: 7.9 km/h
🌧️ Total precip: 0.04 mm
☀️ UV Index: 0.7
🌅 Sunrise: 06:08 AM
🌇 Sunset: 07:33 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Thu, Apr 16
Heavy rain
23°
/
15°
🌧️ 89% chance of rain
💧 Avg. humidity: 89%
💨 Max wind: 20.5 km/h
🌧️ Total precip: 41.96 mm
☀️ UV Index: 0.5
🌅 Sunrise: 06:06 AM
🌇 Sunset: 07:34 PM
🌙 Waning Crescent
🌑 Moon: 3% lit
Fri, Apr 17
Heavy rain
21°
/
16°
🌧️ 89% chance of rain
💧 Avg. humidity: 80%
💨 Max wind: 15.1 km/h
🌧️ Total precip: 28.05 mm
☀️ UV Index: 1.1
🌅 Sunrise: 06:04 AM
🌇 Sunset: 07:35 PM
🌙 New Moon
🌑 Moon: 0% lit
Best Time to Visit Charlestown
Plan your trip to Charlestown, United States around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Charlestown?
Current conditions in Charlestown: Partly cloudy, temperature 24°C, humidity 50%.
What is the best time to visit Charlestown?
The best time to visit Charlestown is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Charlestown?
Charlestown is located at approximately 43.2° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Charlestown?
The wettest period in Charlestown is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Charlestown?
For visits to Charlestown during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Charlestown in?
Charlestown is located in United States, in the state of Massachusetts.
What are the public holidays in Charlestown in 2026?
View the 2026 public holidays for Charlestown on our Holidays page.
What are the GPS coordinates used for the weather forecast in Charlestown?
The weather forecast for Charlestown uses coordinates 43.2383, -72.4247.