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
··
0:00
1:00
2:00
3:00
4:00
5:00
6:00
7:00
8:00
9:00
10:00
11:00
12:00
13:00
14:00
15:00
16:00
17:00
18:00
19:00
20:00
21:00
22:00
23:00

Temperature · peaks at +20°C

15-Day Temperature Trend

20°15°TodaySep23°12°Tmrw21°17°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
    +20°/+15°
    feels +19°0.3 mm · 81%21 km/hUV 2 · Low
    06:2719:23
  • Sat, Sep 12Tomorrow
    +23°/+12°
    feels +21°0.2 mm · 45%26 km/hUV 3 · Mod
    06:2819:21
  • Sun, Sep 13Sun
    +21°/+17°
    feels +22°3.9 mm · 73%18 km/hUV 4 · Mod
    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 · 22%25 km/hUV 2 · Low
    06:3319:14
    Advertisement
  • Wed, Sep 16Wed
    +18°/+12°
    feels +15°0 mm · 8%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 23), with no notable outdoor health concerns.

Today vs Normal

20°C0° below normal

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

16 of the last 19 days with published data ran above normal.

That's a break from the pattern - today's forecast runs below normal even though the recent stretch mostly ran above.

2026-08-19: 24°C24°2026-08-20: 23°C23°2026-08-21: 21°C21°2026-08-22: 21°C21°2026-08-23: 23°C23°2026-08-24: 22°C22°2026-08-25: 25°C25°2026-08-26: 26°C26°2026-08-27: 24°C24°2026-08-28: 24°C24°2026-08-29: 19°C19°2026-08-30: 23°C23°

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 7.4 mm total accumulation. Conditions are suitable for most outdoor activities; carry an umbrella on days with showers.