15-Day Weather Forecast - Frankfurt am Main

15-day weather forecast for Frankfurt am Main: temperatures from 7°C (45°F) to 26°C (79°F). Average daily high 20°C (68°F) over the next 15 days.

Hourly Forecast by Day

Today·11 Sep
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Temperature · peaks at +24°C

15-Day Temperature Trend

24°10°TodaySep25°16°Tmrw18°15°Sun23°14°Mon26°12°Tue21°13°Wed20°10°Thu21°8°Fri19°11°Sat18°12°Sun18°12°Mon21°8°Tue17°11°Wed14°7°Thu15°8°Fri
Colour scale for daily high temperature bars

15-Day Weather Forecast

Updated just now
  • Date
    High / Low
  • Fri, Sep 11Today
    +24°/+10°
    feels +21°0 mm · 8%11 km/hUV 5 · Mod
    06:5419:47
  • Sat, Sep 12Tomorrow
    +25°/+16°
    feels +24°0 mm · 8%9 km/hUV 5 · Mod
    06:5619:45
  • Sun, Sep 13Sun
    +18°/+15°
    feels +19°7.0 mm · 64%10 km/hUV 1 · Low
    06:5719:43
  • Mon, Sep 14Mon
    +23°/+14°
    feels +23°0 mm · 25%4 km/hUV 5 · Mod
    06:5919:41
  • Tue, Sep 15Tue
    +26°/+12°
    feels +26°0 mm · 28%8 km/hUV 5 · Mod
    07:0019:39
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  • Wed, Sep 16Wed
    +21°/+13°
    feels +21°5.5 mm · 43%11 km/hUV 3 · Low
    07:0219:36
  • Thu, Sep 17Thu
    +20°/+10°
    feels +20°0 mm · 12%4 km/hUV 4 · Mod
    07:0319:34
  • Fri, Sep 18Fri
    +21°/+8°
    feels +19°0 mm · 14%20 km/hUV 3 · Mod
    07:0519:32
  • Sat, Sep 19Sat
    +19°/+11°
    feels +15°1.5 mm · 16%20 km/hUV 4 · Mod
    07:0619:30
  • Sun, Sep 20Sun
    +18°/+12°
    feels +14°2.7 mm · 20%24 km/hUV 4 · Mod
    07:0819:28
  • Mon, Sep 21Mon
    +18°/+12°
    feels +15°0 mm · 14%15 km/hUV 4 · Mod
    07:0919:25
  • Tue, Sep 22Tue
    +21°/+8°
    feels +18°0 mm · 25%21 km/hUV 4 · Mod
    07:1119:23
  • Wed, Sep 23Wed
    +17°/+11°
    feels +15°3.6 mm · 20%14 km/hUV 4 · Mod
    07:1219:21
  • Thu, Sep 24Thu
    +14°/+7°
    feels +11°1.8 mm · 24%12 km/hUV 4 · Mod
    07:1419:19
  • Fri, Sep 25Fri
    +15°/+8°
    feels +11°1.2 mm · 21%15 km/hUV 4 · Mod
    07:1519:17

Weather Insight

Frankfurt am Main's 15-day outlook ranges from a low of 7°C to a high of 26°C, with an average daytime high near 20°C. That's 2° below the long-term average high of 22°C for this time of year. Air quality is currently good (AQI 42), with no notable outdoor health concerns.

Today vs Normal

24°C+2° above normal

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

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

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

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 7°C to 27°C, averaging a daily high of 20°C. The extended outlook indicates occasional showers on 7 days, with 23.3 mm total accumulation. Conditions are suitable for most outdoor activities; carry an umbrella on days with showers.