Weather in Boston Today
Current temperature in Boston: 28°C (82°F). Sunny. Today's high 30°C (86°F), low 21°C (70°F).
Today's Daylight Forecast
Moon & Islamic Calendar
High UV apply sunscreen before heading out. A hat or sun umbrella is recommended during peak hours.
5-Day Weather Forecast
Full 15-Day ForecastAtmospheric Details
Today vs Normal
The long-term average high for today is 24°C.
8 of the last 20 days with published data ran above normal.
That's a break from the pattern - today's forecast runs above normal even though the recent stretch mostly ran below.
Red = above normal, blue = at or below · last 12 days
Air Quality
Air quality is considered satisfactory, and air pollution poses little or no risk. It’s a good day to be active outside.
Health & Activity Advice
UV index is 6 today — high. Apply sunscreen before heading out, and consider a hat or shade during peak hours (roughly late morning to mid-afternoon).
Air quality is considered satisfactory, and air pollution poses little or no risk. It’s a good day to be active outside.
Morning before 10 AM or evening after 4 PM is the more comfortable window for outdoor activity today.
Nearby Regional Outlook
Boston Weather Radar
Live precipitation · Cloud cover · Wind
Frequently Asked Questions
What is the hottest month in Boston?
The hottest month in Boston is typically July, with daytime highs averaging around 28.6°C (83°F), based on 10 years of historical weather data. Overnight lows during this period average near 19.2°C (67°F).
What is the coldest month in Boston?
The coldest month in Boston is typically January, with overnight lows averaging around -5°C (23°F) and daytime highs near 2.9°C (37°F), based on 10 years of historical weather data. Freezing overnight temperatures are common during this month, so plan for icy conditions in the early morning.
Does Boston have a rainy season?
Boston doesn't have a sharply defined rainy season rainfall is fairly spread across the year based on 10 years of historical data. October is the wettest month on average (about 121 mm), while August is the driest (about 76 mm).
What's the best time of year to visit Boston?
The best time to visit Boston is typically June, when daytime highs average a comfortable 25.1°C (77°F). Rainfall during this window averages around 79 mm, one of the lighter, more comfortable stretches of the year. This is based on 10 years of historical weather data.
Is Boston's air quality safe right now?
As of the latest reading, Boston's air quality index (AQI) is 34, rated "Good", based on the nearest monitoring station. Air quality is considered satisfactory, with little to no health risk.