15-Day Weather Forecast - Buffalo

15-day weather forecast for Buffalo: temperatures from 7°C (45°F) to 30°C (86°F). Average daily high 22°C (72°F) over the next 15 days.

Hourly Forecast by Day

Today·11 Sep
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Temperature · peaks at +23°C

15-Day Temperature Trend

23°12°TodaySep29°13°Tmrw26°15°Sun18°12°Mon21°9°Tue27°19°Wed27°19°Thu30°19°Fri24°14°Sat19°12°Sun15°11°Mon16°11°Tue19°14°Wed22°15°Thu16°7°Fri
Colour scale for daily high temperature bars

15-Day Weather Forecast

Updated just now
  • Date
    High / Low
  • Fri, Sep 11Today
    +23°/+12°
    feels +21°16 km/hUV 6 · Mod
    06:5019:32
  • Sat, Sep 12Tomorrow
    +29°/+13°
    feels +29°10.8 mm · 27%23 km/hUV 4 · Mod
    06:5219:30
  • Sun, Sep 13Sun
    +26°/+15°
    feels +27°1.1 mm · 40%18 km/hUV 6 · Mod
    06:5319:28
  • Mon, Sep 14Mon
    +18°/+12°
    feels +16°0.3 mm · 13%16 km/hUV 6 · Mod
    06:5419:26
  • Tue, Sep 15Tue
    +21°/+9°
    feels +19°0 mm · 53%17 km/hUV 5 · Mod
    06:5519:25
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  • Wed, Sep 16Wed
    +27°/+19°
    feels +29°0 mm · 53%11 km/hUV 4 · Mod
    06:5619:23
  • Thu, Sep 17Thu
    +27°/+19°
    feels +29°3.6 mm · 42%15 km/hUV 5 · Mod
    06:5719:21
  • Fri, Sep 18Fri
    +30°/+19°
    feels +30°1.5 mm · 33%23 km/hUV 5 · Mod
    06:5819:19
  • Sat, Sep 19Sat
    +24°/+14°
    feels +23°30.3 mm · 17%22 km/hUV 5 · Mod
    06:5919:18
  • Sun, Sep 20Sun
    +19°/+12°
    feels +16°0 mm · 14%13 km/hUV 4 · Mod
    07:0019:16
  • Mon, Sep 21Mon
    +15°/+11°
    feels +13°20.7 mm · 12%16 km/hUV 1 · Low
    07:0119:14
  • Tue, Sep 22Tue
    +16°/+11°
    feels +16°2.1 mm · 13%16 km/hUV 1 · Low
    07:0219:12
  • Wed, Sep 23Wed
    +19°/+14°
    feels +19°0 mm · 16%8 km/hUV 3 · Low
    07:0419:10
  • Thu, Sep 24Thu
    +22°/+15°
    feels +22°0.9 mm · 11%19 km/hUV 4 · Mod
    07:0519:09
  • Fri, Sep 25Fri
    +16°/+7°
    feels +17°14.7 mm · 17%24 km/hUV 1 · Low
    07:0619:07

Weather Insight

Buffalo's 15-day outlook ranges from a low of 7°C to a high of 30°C, with an average daytime high near 22°C. That's 1° below the long-term average high of 23°C for this time of year. It continues a recent pattern — 10 of the last 28 days with published data have run cooler than normal. Air quality is currently good (AQI 22), with no notable outdoor health concerns.

Today vs Normal

23°C0° below normal

The long-term average high for today is 23°C.

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

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

2026-08-28: 22°C22°2026-08-29: 25°C25°2026-08-30: 23°C23°2026-08-31: 24°C24°2026-09-01: 28°C28°2026-09-02: 28°C28°2026-09-03: 27°C27°2026-09-04: 25°C25°2026-09-05: 24°C24°2026-09-06: 22°C22°2026-09-07: 24°C24°2026-09-08: 26°C26°

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 Buffalo

Over the next 15 days, Buffalo is forecast to see temperatures ranging from 7°C to 31°C, averaging a daily high of 22°C. The extended outlook indicates significant rainfall totalling 86 mm spread across 10 days. Conditions are suitable for most outdoor activities; carry an umbrella on days with showers.