15-Day Weather Forecast - Denver

15-day weather forecast for Denver: temperatures from 13°C (55°F) to 35°C (95°F). Average daily high 29°C (84°F) over the next 15 days.

Hourly Forecast by Day

Today·11 Sep
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Temperature · peaks at +32°C

15-Day Temperature Trend

32°13°TodaySep31°13°Tmrw35°20°Sun31°22°Mon25°16°Tue29°17°Wed23°16°Thu24°15°Fri27°15°Sat31°18°Sun33°20°Mon29°20°Tue23°17°Wed28°16°Thu31°18°Fri
Colour scale for daily high temperature bars

15-Day Weather Forecast

Updated just now
  • Date
    High / Low
  • Fri, Sep 11Today
    +32°/+13°
    feels +29°0 mm · 7%33 km/hUV 7 · Hi
    06:3719:14
  • Sat, Sep 12Tomorrow
    +31°/+13°
    feels +29°0 mm · 7%19 km/hUV 6 · Hi
    06:3819:13
  • Sun, Sep 13Sun
    +35°/+20°
    feels +31°0 mm · 16%20 km/hUV 7 · Hi
    06:3919:11
  • Mon, Sep 14Mon
    +31°/+22°
    feels +29°1.6 mm · 37%40 km/hUV 6 · Mod
    06:4019:09
  • Tue, Sep 15Tue
    +25°/+16°
    feels +23°2.8 mm · 48%25 km/hUV 6 · Hi
    06:4119:08
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  • Wed, Sep 16Wed
    +29°/+17°
    feels +29°3.3 mm · 47%16 km/hUV 7 · Hi
    06:4219:06
  • Thu, Sep 17Thu
    +23°/+16°
    feels +20°0.1 mm · 39%18 km/hUV 7 · Hi
    06:4319:04
  • Fri, Sep 18Fri
    +24°/+15°
    feels +22°0 mm · 19%18 km/hUV 7 · Hi
    06:4319:03
  • Sat, Sep 19Sat
    +27°/+15°
    feels +25°0 mm · 26%13 km/hUV 7 · Hi
    06:4419:01
  • Sun, Sep 20Sun
    +31°/+18°
    feels +27°0 mm · 26%15 km/hUV 7 · Hi
    06:4519:00
  • Mon, Sep 21Mon
    +33°/+20°
    feels +29°0 mm · 26%13 km/hUV 7 · Hi
    06:4618:58
  • Tue, Sep 22Tue
    +29°/+20°
    feels +27°2.1 mm · 29%22 km/hUV 5 · Mod
    06:4718:56
  • Wed, Sep 23Wed
    +23°/+17°
    feels +21°0.6 mm · 30%26 km/hUV 4 · Mod
    06:4818:55
  • Thu, Sep 24Thu
    +28°/+16°
    feels +25°0 mm · 29%19 km/hUV 7 · Hi
    06:4918:53
  • Fri, Sep 25Fri
    +31°/+18°
    feels +28°0 mm · 23%12 km/hUV 7 · Hi
    06:5018:51

Weather Insight

Denver's 15-day outlook ranges from a low of 13°C to a high of 35°C, with an average daytime high near 29°C. That's 4° above the long-term average high of 25°C for this time of year. It continues a recent pattern — 15 of the last 19 days with published data have run warmer than normal. Air quality is currently good (AQI 29), with no notable outdoor health concerns.

Today vs Normal

32°C+7° above normal

The long-term average high for today is 25°C.

15 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: 30°C30°2026-08-20: 31°C31°2026-08-21: 34°C34°2026-08-22: 32°C32°2026-08-23: 31°C31°2026-08-24: 31°C31°2026-08-25: 27°C27°2026-08-26: 29°C29°2026-08-27: 30°C30°2026-08-28: 32°C32°2026-08-29: 28°C28°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 Denver

Over the next 15 days, Denver is forecast to see temperatures ranging from 12°C to 35°C, averaging a daily high of 29°C. The extended outlook indicates occasional showers on 6 days, with 10.5 mm total accumulation. Conditions are suitable for most outdoor activities; carry an umbrella on days with showers.