15-Day Weather Forecast - Bristol

15-day weather forecast for Bristol: temperatures from 8°C (46°F) to 22°C (72°F). Average daily high 19°C (66°F) over the next 15 days.

Hourly Forecast by Day

Today·10 Sep
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Temperature · peaks at +19°C

15-Day Temperature Trend

19°11°TodaySep21°15°Tmrw21°13°Sat22°17°Sun22°17°Mon19°14°Tue18°12°Wed17°13°Thu16°12°Fri17°13°Sat17°11°Sun18°8°Mon20°9°Tue16°11°Wed15°12°Thu
Colour scale for daily high temperature bars

15-Day Weather Forecast

Updated just now
  • Date
    High / Low
  • Thu, Sep 10Today
    +19°/+11°
    feels +17°0.3 mm · 84%23 km/hUV 2 · Low
    06:3719:36
  • Fri, Sep 11Tomorrow
    +21°/+15°
    feels +19°2.5 mm · 86%15 km/hUV 3 · Low
    06:3819:34
  • Sat, Sep 12Sat
    +21°/+13°
    feels +20°0.1 mm · 33%21 km/hUV 3 · Low
    06:4019:31
  • Sun, Sep 13Sun
    +22°/+17°
    feels +21°6.5 mm · 62%19 km/hUV 5 · Mod
    06:4119:29
  • Mon, Sep 14Mon
    +22°/+17°
    feels +21°1.5 mm · 39%23 km/hUV 4 · Mod
    06:4319:27
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  • Tue, Sep 15Tue
    +19°/+14°
    feels +19°1.2 mm · 40%21 km/hUV 4 · Mod
    06:4519:24
  • Wed, Sep 16Wed
    +18°/+12°
    feels +15°0.4 mm · 10%23 km/hUV 2 · Low
    06:4619:22
  • Thu, Sep 17Thu
    +17°/+13°
    feels +14°5.6 mm · 39%26 km/hUV 2 · Low
    06:4819:20
  • Fri, Sep 18Fri
    +16°/+12°
    feels +14°0 mm · 16%19 km/hUV 3 · Low
    06:4919:18
  • Sat, Sep 19Sat
    +17°/+13°
    feels +14°0 mm · 27%21 km/hUV 4 · Mod
    06:5119:15
  • Sun, Sep 20Sun
    +17°/+11°
    feels +15°0 mm · 18%12 km/hUV 2 · Low
    06:5319:13
  • Mon, Sep 21Mon
    +18°/+8°
    feels +16°0 mm · 20%11 km/hUV 4 · Mod
    06:5419:11
  • Tue, Sep 22Tue
    +20°/+9°
    feels +18°0.8 mm · 12%22 km/hUV 4 · Mod
    06:5619:08
  • Wed, Sep 23Wed
    +16°/+11°
    feels +11°3.8 mm · 22%27 km/hUV 4 · Mod
    06:5719:06
  • Thu, Sep 24Thu
    +15°/+12°
    feels +12°6.6 mm · 24%26 km/hUV 4 · Mod
    06:5919:04

Weather Insight

Bristol's 15-day outlook ranges from a low of 8°C to a high of 22°C, with an average daytime high near 19°C. Air quality is currently good (AQI 30), with no notable outdoor health concerns.

Today vs Normal

19°C0° below normal

The long-term average high for today is 19°C.

19 of the last 20 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: 23°C23°2026-08-20: 21°C21°2026-08-21: 20°C20°2026-08-22: 22°C22°2026-08-23: 24°C24°2026-08-24: 23°C23°2026-08-25: 27°C27°2026-08-26: 27°C27°2026-08-27: 24°C24°2026-08-28: 23°C23°2026-08-29: 22°C22°2026-08-30: 22°C22°

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 Bristol

Over the next 15 days, Bristol is forecast to see temperatures ranging from 7°C to 23°C, averaging a daily high of 19°C. The extended outlook indicates frequent showers on 11 out of 15 days. Conditions are suitable for most outdoor activities; carry an umbrella on days with showers.