15-Day Weather Forecast - Warsaw

15-day weather forecast for Warsaw: temperatures from 9°C (48°F) to 22°C (72°F). Average daily high 18°C (64°F) over the next 15 days.

Hourly Forecast by Day

Today·11 Sep
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Temperature · peaks at +17°C

15-Day Temperature Trend

17°11°TodaySep19°13°Tmrw20°15°Sun20°14°Mon18°13°Tue22°12°Wed18°12°Thu19°11°Fri18°11°Sat16°11°Sun16°10°Mon16°9°Tue18°11°Wed14°10°Thu12°10°Fri
Colour scale for daily high temperature bars

15-Day Weather Forecast

Updated just now
  • Date
    High / Low
  • Fri, Sep 11Today
    +17°/+11°
    feels +16°0 mm · 59%14 km/hUV 4 · Mod
    06:0319:00
  • Sat, Sep 12Tomorrow
    +19°/+13°
    feels +18°0 mm · 51%13 km/hUV 5 · Mod
    06:0518:58
  • Sun, Sep 13Sun
    +20°/+15°
    feels +19°1.1 mm · 24%13 km/hUV 4 · Mod
    06:0618:55
  • Mon, Sep 14Mon
    +20°/+14°
    feels +20°1.5 mm · 51%7 km/hUV 4 · Mod
    06:0818:53
  • Tue, Sep 15Tue
    +18°/+13°
    feels +17°0.6 mm · 6%6 km/hUV 4 · Mod
    06:1018:51
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  • Wed, Sep 16Wed
    +22°/+12°
    feels +22°6.0 mm · 41%19 km/hUV 4 · Mod
    06:1118:48
  • Thu, Sep 17Thu
    +18°/+12°
    feels +16°0 mm · 29%15 km/hUV 1 · Low
    06:1318:46
  • Fri, Sep 18Fri
    +19°/+11°
    feels +18°3.0 mm · 12%14 km/hUV 2 · Low
    06:1518:44
  • Sat, Sep 19Sat
    +18°/+11°
    feels +15°0.3 mm · 17%16 km/hUV 3 · Mod
    06:1618:41
  • Sun, Sep 20Sun
    +16°/+11°
    feels +14°5.7 mm · 24%18 km/hUV 4 · Mod
    06:1818:39
  • Mon, Sep 21Mon
    +16°/+10°
    feels +13°3.9 mm · 16%17 km/hUV 2 · Low
    06:2018:37
  • Tue, Sep 22Tue
    +16°/+9°
    feels +13°0.3 mm · 24%15 km/hUV 4 · Mod
    06:2118:34
  • Wed, Sep 23Wed
    +18°/+11°
    feels +15°0 mm · 29%21 km/hUV 4 · Mod
    06:2318:32
  • Thu, Sep 24Thu
    +14°/+10°
    feels +13°7.2 mm · 20%10 km/hUV 3 · Low
    06:2418:30
  • Fri, Sep 25Fri
    +12°/+10°
    feels +10°24.9 mm · 22%14 km/hUV 4 · Mod
    06:2618:27

Weather Insight

Warsaw's 15-day outlook ranges from a low of 9°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. Air quality is currently good (AQI 39), with no notable outdoor health concerns.

Today vs Normal

17°C-4° below normal

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

10 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: 23°C23°2026-08-20: 25°C25°2026-08-21: 27°C27°2026-08-22: 22°C22°2026-08-23: 20°C20°2026-08-24: 19°C19°2026-08-25: 23°C23°2026-08-26: 24°C24°2026-08-27: 25°C25°2026-08-28: 26°C26°2026-08-29: 23°C23°2026-08-30: 27°C27°

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 Warsaw

Over the next 15 days, Warsaw is forecast to see temperatures ranging from 9°C to 22°C, averaging a daily high of 17°C. The extended outlook indicates significant rainfall totalling 54.5 mm spread across 11 days. Conditions are suitable for most outdoor activities; carry an umbrella on days with showers.