15-Day Weather Forecast - Louisville

15-day weather forecast for Louisville: temperatures from 15°C (59°F) to 38°C (100°F). Average daily high 28°C (82°F) over the next 15 days.

Hourly Forecast by Day

Today·11 Sep
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Temperature · peaks at +27°C

15-Day Temperature Trend

27°22°TodaySep28°22°Tmrw34°21°Sun29°17°Mon37°20°Tue38°25°Wed37°23°Thu33°23°Fri22°17°Sat17°16°Sun20°15°Mon24°16°Tue27°15°Wed29°17°Thu24°16°Fri
Colour scale for daily high temperature bars

15-Day Weather Forecast

Updated just now
  • Date
    High / Low
  • Fri, Sep 11Today
    +27°/+22°
    feels +31°0.4 mm · 33%14 km/hUV 6 · Mod
    07:2119:57
  • Sat, Sep 12Tomorrow
    +28°/+22°
    feels +32°2.5 mm · 33%16 km/hUV 6 · Mod
    07:2219:55
  • Sun, Sep 13Sun
    +34°/+21°
    feels +36°0 mm · 11%18 km/hUV 6 · Hi
    07:2319:53
  • Mon, Sep 14Mon
    +29°/+17°
    feels +28°0 mm · 5%17 km/hUV 6 · Hi
    07:2319:52
  • Tue, Sep 15Tue
    +37°/+20°
    feels +39°0 mm · 1%12 km/hUV 6 · Hi
    07:2419:50
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  • Wed, Sep 16Wed
    +38°/+25°
    feels +40°0 mm · 13%11 km/hUV 6 · Hi
    07:2519:49
  • Thu, Sep 17Thu
    +37°/+23°
    feels +40°3.6 mm · 27%10 km/hUV 6 · Hi
    07:2619:47
  • Fri, Sep 18Fri
    +33°/+23°
    feels +35°6.6 mm · 20%15 km/hUV 6 · Mod
    07:2719:46
  • Sat, Sep 19Sat
    +22°/+17°
    feels +26°9.0 mm · 15%15 km/hUV 1 · Low
    07:2819:44
  • Sun, Sep 20Sun
    +17°/+16°
    feels +18°30.6 mm · 11%13 km/hUV 1 · Low
    07:2919:43
  • Mon, Sep 21Mon
    +20°/+15°
    feels +21°5.7 mm · 11%9 km/hUV 2 · Low
    07:3019:41
  • Tue, Sep 22Tue
    +24°/+16°
    feels +24°0.3 mm · 11%11 km/hUV 5 · Mod
    07:3019:39
  • Wed, Sep 23Wed
    +27°/+15°
    feels +29°0 mm · 24%7 km/hUV 6 · Mod
    07:3119:38
  • Thu, Sep 24Thu
    +29°/+17°
    feels +30°0 mm · 17%5 km/hUV 5 · Mod
    07:3219:36
  • Fri, Sep 25Fri
    +24°/+16°
    feels +23°0 mm · 24%18 km/hUV 6 · Mod
    07:3319:35

Weather Insight

Louisville's 15-day outlook ranges from a low of 15°C to a high of 38°C, with an average daytime high near 28°C. Air quality is currently good (AQI 39), with no notable outdoor health concerns.

Today vs Normal

27°C-1° below normal

The long-term average high for today is 28°C.

19 of the last 28 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.

2026-08-28: 30°C30°2026-08-29: 31°C31°2026-08-30: 32°C32°2026-08-31: 34°C34°2026-09-01: 35°C35°2026-09-02: 35°C35°2026-09-03: 36°C36°2026-09-04: 36°C36°2026-09-05: 34°C34°2026-09-06: 30°C30°2026-09-07: 30°C30°2026-09-08: 33°C33°

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 Louisville

Over the next 15 days, Louisville is forecast to see temperatures ranging from 15°C to 38°C, averaging a daily high of 28°C. The extended outlook indicates significant rainfall totalling 58.7 mm spread across 8 days. Conditions are suitable for most outdoor activities; carry an umbrella on days with showers.