15-Day Weather Forecast - Cambridge

15-day weather forecast for Cambridge: temperatures from 6°C (43°F) to 24°C (75°F). Average daily high 19°C (66°F) over the next 15 days.

Hourly Forecast by Day

Today·11 Sep
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Temperature · peaks at +21°C

15-Day Temperature Trend

21°15°TodaySep23°13°Tmrw20°16°Sun24°16°Mon20°15°Tue18°12°Wed21°13°Thu18°11°Fri17°12°Sat18°11°Sun19°8°Mon21°13°Tue16°10°Wed14°7°Thu14°6°Fri
Colour scale for daily high temperature bars

15-Day Weather Forecast

Updated just now
  • Date
    High / Low
  • Fri, Sep 11Today
    +21°/+15°
    feels +19°0.3 mm · 81%21 km/hUV 2 · Low
    06:2719:23
  • Sat, Sep 12Tomorrow
    +23°/+13°
    feels +21°0.5 mm · 47%24 km/hUV 3 · Mod
    06:2819:21
  • Sun, Sep 13Sun
    +20°/+16°
    feels +21°5.9 mm · 57%14 km/hUV 2 · Low
    06:3019:19
  • Mon, Sep 14Mon
    +24°/+16°
    feels +23°0 mm · 6%19 km/hUV 5 · Mod
    06:3219:16
  • Tue, Sep 15Tue
    +20°/+15°
    feels +19°0 mm · 25%25 km/hUV 2 · Low
    06:3319:14
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  • Wed, Sep 16Wed
    +18°/+12°
    feels +15°0 mm · 10%21 km/hUV 4 · Mod
    06:3519:12
  • Thu, Sep 17Thu
    +21°/+13°
    feels +18°0 mm · 22%22 km/hUV 4 · Mod
    06:3719:09
  • Fri, Sep 18Fri
    +18°/+11°
    feels +13°0 mm · 12%26 km/hUV 4 · Mod
    06:3819:07
  • Sat, Sep 19Sat
    +17°/+12°
    feels +14°0.6 mm · 14%19 km/hUV 4 · Mod
    06:4019:05
  • Sun, Sep 20Sun
    +18°/+11°
    feels +13°0 mm · 12%29 km/hUV 4 · Mod
    06:4219:02
  • Mon, Sep 21Mon
    +19°/+8°
    feels +16°0 mm · 18%16 km/hUV 4 · Mod
    06:4319:00
  • Tue, Sep 22Tue
    +21°/+13°
    feels +18°0.8 mm · 20%26 km/hUV 4 · Mod
    06:4518:58
  • Wed, Sep 23Wed
    +16°/+10°
    feels +11°1.0 mm · 20%25 km/hUV 4 · Mod
    06:4718:55
  • Thu, Sep 24Thu
    +14°/+7°
    feels +8°0.6 mm · 16%25 km/hUV 4 · Mod
    06:4818:53
  • Fri, Sep 25Fri
    +14°/+6°
    feels +10°0 mm · 14%20 km/hUV 4 · Mod
    06:5018:51

Weather Insight

Cambridge's 15-day outlook ranges from a low of 6°C to a high of 24°C, with an average daytime high near 19°C. That's 1° below the long-term average high of 20°C for this time of year. Air quality is currently good (AQI 25), with no notable outdoor health concerns.

Today vs Normal

21°C+1° above normal

The long-term average high for today is 20°C.

22 of the last 28 days with published data ran above normal.

It continues that pattern - today's forecast is also running above normal.

2026-08-28: 24°C24°2026-08-29: 19°C19°2026-08-30: 23°C23°2026-08-31: 23°C23°2026-09-01: 23°C23°2026-09-02: 20°C20°2026-09-03: 25°C25°2026-09-04: 20°C20°2026-09-05: 22°C22°2026-09-06: 26°C26°2026-09-07: 23°C23°2026-09-08: 19°C19°

Red = above normal, blue = at or below · last 12 days

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 Cambridge

Over the next 15 days, Cambridge is forecast to see temperatures ranging from 6°C to 25°C, averaging a daily high of 19°C. The extended outlook indicates occasional showers on 7 days, with 9.7 mm total accumulation. Conditions are suitable for most outdoor activities; carry an umbrella on days with showers.