15-Day Weather Forecast - Hartford

15-day weather forecast for Hartford: temperatures from 8°C (46°F) to 28°C (82°F). Average daily high 22°C (72°F) over the next 15 days.

Hourly Forecast by Day

Today·11 Sep
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Temperature · peaks at +26°C

15-Day Temperature Trend

26°16°TodaySep26°11°Tmrw24°18°Sun23°13°Mon22°9°Tue24°12°Wed27°14°Thu20°17°Fri28°17°Sat22°12°Sun13°12°Mon14°12°Tue14°12°Wed26°12°Thu18°8°Fri
Colour scale for daily high temperature bars

15-Day Weather Forecast

Updated just now
  • Date
    High / Low
  • Fri, Sep 11Today
    +26°/+16°
    feels +25°17 km/hUV 6 · Hi
    06:2619:06
  • Sat, Sep 12Tomorrow
    +26°/+11°
    feels +25°0 mm · 5%13 km/hUV 6 · Mod
    06:2719:05
  • Sun, Sep 13Sun
    +24°/+18°
    feels +28°32.4 mm · 72%11 km/hUV 4 · Mod
    06:2819:03
  • Mon, Sep 14Mon
    +23°/+13°
    feels +23°1.1 mm · 7%17 km/hUV 6 · Mod
    06:3019:01
  • Tue, Sep 15Tue
    +22°/+9°
    feels +23°10 km/hUV 6 · Hi
    06:3118:59
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  • Wed, Sep 16Wed
    +24°/+12°
    feels +25°0 mm · 3%10 km/hUV 6 · Hi
    06:3218:58
  • Thu, Sep 17Thu
    +27°/+14°
    feels +28°0 mm · 24%10 km/hUV 6 · Hi
    06:3318:56
  • Fri, Sep 18Fri
    +20°/+17°
    feels +24°0.3 mm · 24%7 km/hUV 1 · Low
    06:3418:54
  • Sat, Sep 19Sat
    +28°/+17°
    feels +29°1.8 mm · 17%19 km/hUV 5 · Mod
    06:3518:53
  • Sun, Sep 20Sun
    +22°/+12°
    feels +21°0 mm · 17%13 km/hUV 5 · Mod
    06:3618:51
  • Mon, Sep 21Mon
    +13°/+12°
    feels +12°6.6 mm · 12%15 km/hUV 1 · Low
    06:3718:49
  • Tue, Sep 22Tue
    +14°/+12°
    feels +13°2.7 mm · 19%13 km/hUV 1 · Low
    06:3818:47
  • Wed, Sep 23Wed
    +14°/+12°
    feels +14°0.6 mm · 13%10 km/hUV 1 · Low
    06:3918:46
  • Thu, Sep 24Thu
    +26°/+12°
    feels +27°0 mm · 10%10 km/hUV 6 · Mod
    06:4018:44
  • Fri, Sep 25Fri
    +18°/+8°
    feels +19°13.8 mm · 14%23 km/hUV 1 · Low
    06:4118:42

Weather Insight

Hartford's 15-day outlook ranges from a low of 8°C to a high of 28°C, with an average daytime high near 22°C. That's 3° below the long-term average high of 25°C for this time of year. It continues a recent pattern — 0 of the last 28 days with published data have run cooler than normal. Air quality is currently good (AQI 30), with no notable outdoor health concerns.

Today vs Normal

26°C+1° above normal

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

0 of the last 28 days with published data ran above normal.

That's a break from the pattern - today's forecast runs above normal even though the recent stretch mostly ran below.

2026-08-28: 25°C25°2026-08-29: 23°C23°2026-08-30: 26°C26°2026-08-31: 25°C25°2026-09-01: 20°C20°2026-09-02: 22°C22°2026-09-03: 25°C25°2026-09-04: 26°C26°2026-09-05: 23°C23°2026-09-06: 21°C21°2026-09-07: 24°C24°2026-09-08: 25°C25°

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 Hartford

Over the next 15 days, Hartford is forecast to see temperatures ranging from 7°C to 29°C, averaging a daily high of 22°C. The extended outlook indicates significant rainfall totalling 59.3 mm spread across 8 days. Conditions are suitable for most outdoor activities; carry an umbrella on days with showers.