15-Day Weather Forecast - Boston

15-day weather forecast for Boston: temperatures from 9°C (48°F) to 26°C (79°F). Average daily high 20°C (68°F) over the next 15 days.

Hourly Forecast by Day

Today·11 Sep
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Temperature · peaks at +26°C

15-Day Temperature Trend

26°16°TodaySep23°11°Tmrw23°18°Sun23°16°Mon21°14°Tue26°17°Wed21°16°Thu17°16°Fri23°15°Sat19°13°Sun14°11°Mon15°9°Tue16°11°Wed19°15°Thu17°14°Fri
Colour scale for daily high temperature bars

15-Day Weather Forecast

Updated just now
  • Date
    High / Low
  • Fri, Sep 11Today
    +26°/+16°
    feels +24°17 km/hUV 6 · Hi
    06:2019:00
  • Sat, Sep 12Tomorrow
    +23°/+11°
    feels +23°0 mm · 3%18 km/hUV 6 · Mod
    06:2118:59
  • Sun, Sep 13Sun
    +23°/+18°
    feels +25°7.6 mm · 69%18 km/hUV 3 · Mod
    06:2218:57
  • Mon, Sep 14Mon
    +23°/+16°
    feels +22°0 mm · 8%19 km/hUV 6 · Hi
    06:2318:55
  • Tue, Sep 15Tue
    +21°/+14°
    feels +19°0 mm · 2%20 km/hUV 6 · Mod
    06:2418:53
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  • Wed, Sep 16Wed
    +26°/+17°
    feels +27°0 mm · 11%18 km/hUV 6 · Mod
    06:2518:51
  • Thu, Sep 17Thu
    +21°/+16°
    feels +22°36.0 mm · 34%20 km/hUV 0 · Low
    06:2618:50
  • Fri, Sep 18Fri
    +17°/+16°
    feels +16°0 mm · 34%20 km/hUV 3 · Mod
    06:2718:48
  • Sat, Sep 19Sat
    +23°/+15°
    feels +25°0 mm · 11%13 km/hUV 6 · Mod
    06:2818:46
  • Sun, Sep 20Sun
    +19°/+13°
    feels +19°1.2 mm · 11%23 km/hUV 6 · Mod
    06:2918:45
  • Mon, Sep 21Mon
    +14°/+11°
    feels +10°0 mm · 8%25 km/hUV 6 · Mod
    06:3018:43
  • Tue, Sep 22Tue
    +15°/+9°
    feels +13°0 mm · 24%15 km/hUV 6 · Mod
    06:3118:41
  • Wed, Sep 23Wed
    +16°/+11°
    feels +14°0.6 mm · 26%20 km/hUV 4 · Mod
    06:3218:39
  • Thu, Sep 24Thu
    +19°/+15°
    feels +17°0.3 mm · 20%25 km/hUV 4 · Mod
    06:3318:37
  • Fri, Sep 25Fri
    +17°/+14°
    feels +14°0 mm · 11%32 km/hUV 6 · Mod
    06:3418:36

Weather Insight

Boston's 15-day outlook ranges from a low of 9°C to a high of 26°C, with an average daytime high near 20°C. That's 4° below the long-term average high of 24°C for this time of year. Air quality is currently good (AQI 39), with no notable outdoor health concerns.

Today vs Normal

26°C+2° above normal

The long-term average high for today is 24°C.

Air Quality

Air Quality
Good

Air quality is considered satisfactory, and air pollution poses little or no risk. It’s a good day to be active outside.

Extended Outlook for Boston

Over the next 15 days, Boston is forecast to see temperatures ranging from 8°C to 27°C, averaging a daily high of 20°C. The extended outlook indicates significant rainfall totalling 45.7 mm spread across 5 days. Conditions are suitable for most outdoor activities; carry an umbrella on days with showers.