15-Day Weather Forecast - Frankfurt am Main

15-day weather forecast for Frankfurt am Main: temperatures from 9°C (48°F) to 27°C (81°F). Average daily high 21°C (70°F) over the next 15 days.

Hourly Forecast by Day

Today·10 Sep
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Temperature · peaks at +21°C

15-Day Temperature Trend

21°11°TodaySep23°12°Tmrw24°14°Sat21°16°Sun23°14°Mon27°13°Tue20°14°Wed16°14°Thu21°14°Fri22°9°Sat24°10°Sun19°9°Mon22°9°Tue18°12°Wed16°13°Thu
Colour scale for daily high temperature bars

15-Day Weather Forecast

Updated just now
  • Date
    High / Low
  • Thu, Sep 10Today
    +21°/+11°
    feels +19°6 km/hUV 4 · Mod
    06:5319:50
  • Fri, Sep 11Tomorrow
    +23°/+12°
    feels +21°0 mm · 5%12 km/hUV 5 · Mod
    06:5419:47
  • Sat, Sep 12Sat
    +24°/+14°
    feels +23°0 mm · 3%7 km/hUV 5 · Mod
    06:5619:45
  • Sun, Sep 13Sun
    +21°/+16°
    feels +22°6.5 mm · 67%9 km/hUV 3 · Mod
    06:5719:43
  • Mon, Sep 14Mon
    +23°/+14°
    feels +23°0 mm · 34%5 km/hUV 5 · Mod
    06:5919:41
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  • Tue, Sep 15Tue
    +27°/+13°
    feels +27°0.5 mm · 33%9 km/hUV 5 · Mod
    07:0019:39
  • Wed, Sep 16Wed
    +20°/+14°
    feels +22°6.0 mm · 40%14 km/hUV 4 · Mod
    07:0219:36
  • Thu, Sep 17Thu
    +16°/+14°
    feels +15°2.1 mm · 22%15 km/hUV 4 · Mod
    07:0319:34
  • Fri, Sep 18Fri
    +21°/+14°
    feels +17°0.2 mm · 27%18 km/hUV 2 · Low
    07:0519:32
  • Sat, Sep 19Sat
    +22°/+9°
    feels +20°0 mm · 19%9 km/hUV 3 · Low
    07:0619:30
  • Sun, Sep 20Sun
    +24°/+10°
    feels +22°0 mm · 19%13 km/hUV 4 · Mod
    07:0819:28
  • Mon, Sep 21Mon
    +19°/+9°
    feels +17°0 mm · 20%10 km/hUV 4 · Mod
    07:0919:25
  • Tue, Sep 22Tue
    +22°/+9°
    feels +20°0 mm · 25%8 km/hUV 3 · Low
    07:1119:23
  • Wed, Sep 23Wed
    +18°/+12°
    feels +15°0.6 mm · 18%13 km/hUV 2 · Low
    07:1219:21
  • Thu, Sep 24Thu
    +16°/+13°
    feels +13°2.4 mm · 16%34 km/hUV 3 · Mod
    07:1419:19

Weather Insight

Frankfurt am Main's 15-day outlook ranges from a low of 9°C to a high of 27°C, with an average daytime high near 21°C. That's 1° below the long-term average high of 22°C for this time of year. Air quality is currently good (AQI 37), with no notable outdoor health concerns.

Today vs Normal

21°C-1° below normal

The long-term average high for today is 22°C.

11 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: 27°C27°2026-08-20: 25°C25°2026-08-21: 20°C20°2026-08-22: 21°C21°2026-08-23: 23°C23°2026-08-24: 24°C24°2026-08-25: 19°C19°2026-08-26: 27°C27°2026-08-27: 32°C32°2026-08-28: 25°C25°2026-08-29: 25°C25°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 Frankfurt am Main

Over the next 15 days, Frankfurt am Main is forecast to see temperatures ranging from 8°C to 28°C, averaging a daily high of 21°C. The extended outlook indicates occasional showers on 7 days, with 18.3 mm total accumulation. Conditions are suitable for most outdoor activities; carry an umbrella on days with showers.