See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:29
Sunrise
18:48
Sunset
Moon
Waxing Crescent
10:16
Moonrise
Daily Forecast
Monday
Today
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Air Quality Data Available
Upgrade to access real-time air quality data for Chelsea.
Resources
UV Index
Humidity
Weather in Chelsea tomorrow, September 15, 2026
Chelsea is set for a fine, sunny day on September 15, 2026, with only limited interruptions to the clear sky. The early hours look particularly favourable for being outside. Morning skies stay relatively clear, holding cloud close to 2% near 11:00. The early part of the day favours being outside.
Expect highs of 19°C and cooler readings close to 10°C. The air stays humid, with relative humidity between 61% and 93% and the peak around 06:00. Winds stay light, near 12.2 km/h by 22:00, so the day feels still more than breezy.
Expect persistent cloud later on, with amounts around 100% by 15:00. Sunshine remains the exception, not the rule. Visibility stays generally good near 15.9 km on average, though it can drop toward 14.6 km in thicker cloud or showers. Sunrise is at 06:30 and sunset at 18:46, giving 12 hours 16 minutes of sunlight today.
In short, September 15, 2026 looks like a fine day in Chelsea for being outside, peaking around 19°C.
Frequently asked questions about weather in Chelsea
How warm does it get in Chelsea?
The warmest month in Chelsea is July, with average high temperatures of 26°C. The average temperature during this period is around 23°C.
How cold does it get in Chelsea?
The coldest month in Chelsea is January, with average low temperatures of -3°C. The average temperature during this period is around 0°C.
What is the wettest time of year in Chelsea?
The wettest month in Chelsea is December, with an average of 124mm of precipitation.
What is the driest time of year in Chelsea?
The driest month in Chelsea is August, with an average of 72mm of precipitation.
Explore more weather forecasts
- Everett, Massachusetts
- New York City, New York
- Revere, Massachusetts
- Los Angeles, California
- Boston, Massachusetts
- Brooklyn, New York
- Winthrop, Massachusetts
- Chicago, Illinois
- Malden, Massachusetts
- Houston, Texas
- Somerville, Massachusetts
- Queens, New York
- Cambridge, Massachusetts
- Phoenix, Arizona
- Medford, Massachusetts
- Philadelphia, Pennsylvania