15-Day Weather Forecast - Poznan

15-day weather forecast for Poznan: temperatures from 6°C (43°F) to 22°C (72°F). Average daily high 17°C (63°F) over the next 15 days.

Hourly Forecast by Day

Today·11 Sep
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Temperature · peaks at +18°C

15-Day Temperature Trend

18°11°TodaySep21°11°Tmrw17°15°Sun22°14°Mon21°10°Tue18°14°Wed17°12°Thu17°9°Fri18°11°Sat13°10°Sun15°10°Mon17°9°Tue16°11°Wed13°8°Thu15°6°Fri
Colour scale for daily high temperature bars

15-Day Weather Forecast

Updated just now
  • Date
    High / Low
  • Fri, Sep 11Today
    +18°/+11°
    feels +16°8 km/hUV 3 · Mod
    06:1919:17
  • Sat, Sep 12Tomorrow
    +21°/+11°
    feels +19°9 km/hUV 5 · Mod
    06:2119:14
  • Sun, Sep 13Sun
    +17°/+15°
    feels +17°1.3 mm · 55%12 km/hUV 1 · Low
    06:2319:12
  • Mon, Sep 14Mon
    +22°/+14°
    feels +20°0 mm · 43%12 km/hUV 4 · Mod
    06:2419:09
  • Tue, Sep 15Tue
    +21°/+10°
    feels +20°0 mm · 16%9 km/hUV 4 · Mod
    06:2619:07
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  • Wed, Sep 16Wed
    +18°/+14°
    feels +16°0 mm · 51%17 km/hUV 4 · Mod
    06:2819:05
  • Thu, Sep 17Thu
    +17°/+12°
    feels +15°0 mm · 18%14 km/hUV 3 · Mod
    06:2919:02
  • Fri, Sep 18Fri
    +17°/+9°
    feels +15°1.4 mm · 27%20 km/hUV 2 · Low
    06:3119:00
  • Sat, Sep 19Sat
    +18°/+11°
    feels +14°0 mm · 22%19 km/hUV 3 · Mod
    06:3318:58
  • Sun, Sep 20Sun
    +13°/+10°
    feels +11°10.2 mm · 24%19 km/hUV 4 · Mod
    06:3418:55
  • Mon, Sep 21Mon
    +15°/+10°
    feels +11°1.8 mm · 20%23 km/hUV 4 · Mod
    06:3618:53
  • Tue, Sep 22Tue
    +17°/+9°
    feels +14°0 mm · 20%18 km/hUV 4 · Mod
    06:3818:51
  • Wed, Sep 23Wed
    +16°/+11°
    feels +13°0.6 mm · 27%21 km/hUV 4 · Mod
    06:3918:48
  • Thu, Sep 24Thu
    +13°/+8°
    feels +11°0 mm · 29%11 km/hUV 3 · Low
    06:4118:46
  • Fri, Sep 25Fri
    +15°/+6°
    feels +12°0.9 mm · 27%17 km/hUV 4 · Mod
    06:4318:44

Weather Insight

Poznan's 15-day outlook ranges from a low of 6°C to a high of 22°C, with an average daytime high near 17°C. That's 4° below the long-term average high of 21°C for this time of year. It continues a recent pattern — 9 of the last 19 days with published data have run cooler than normal. Air quality is currently good (AQI 31), with no notable outdoor health concerns.

Today vs Normal

18°C-3° below normal

The long-term average high for today is 21°C.

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

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

2026-08-19: 21°C21°2026-08-20: 23°C23°2026-08-21: 27°C27°2026-08-22: 20°C20°2026-08-23: 19°C19°2026-08-24: 20°C20°2026-08-25: 23°C23°2026-08-26: 24°C24°2026-08-27: 25°C25°2026-08-28: 27°C27°2026-08-29: 23°C23°2026-08-30: 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 Poznan

Over the next 15 days, Poznan is forecast to see temperatures ranging from 6°C to 22°C, averaging a daily high of 17°C. The extended outlook indicates occasional showers on 6 days, with 16.2 mm total accumulation. Conditions are suitable for most outdoor activities; carry an umbrella on days with showers.