15-Day Weather Forecast - Grand Rapids

15-day weather forecast for Grand Rapids: temperatures from 8°C (46°F) to 28°C (82°F). Average daily high 23°C (73°F) over the next 15 days.

Hourly Forecast by Day

Today·11 Sep
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Temperature · peaks at +25°C

15-Day Temperature Trend

25°9°TodaySep28°15°Tmrw24°12°Sun20°8°Mon25°12°Tue20°15°Wed25°15°Thu26°17°Fri22°13°Sat22°10°Sun22°10°Mon20°11°Tue26°12°Wed22°14°Thu17°10°Fri
Colour scale for daily high temperature bars

15-Day Weather Forecast

Updated just now
  • Date
    High / Low
  • Fri, Sep 11Today
    +25°/+9°
    feels +24°8 km/hUV 6 · Mod
    07:1819:59
  • Sat, Sep 12Tomorrow
    +28°/+15°
    feels +28°0 mm · 5%22 km/hUV 6 · Mod
    07:1919:57
  • Sun, Sep 13Sun
    +24°/+12°
    feels +23°2.6 mm · 12%29 km/hUV 6 · Mod
    07:2019:55
  • Mon, Sep 14Mon
    +20°/+8°
    feels +18°0 mm · 6%19 km/hUV 5 · Mod
    07:2119:54
  • Tue, Sep 15Tue
    +25°/+12°
    feels +26°16.0 mm · 56%22 km/hUV 5 · Mod
    07:2219:52
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  • Wed, Sep 16Wed
    +20°/+15°
    feels +21°3.0 mm · 56%22 km/hUV 2 · Low
    07:2319:50
  • Thu, Sep 17Thu
    +25°/+15°
    feels +27°15.3 mm · 38%21 km/hUV 4 · Mod
    07:2419:48
  • Fri, Sep 18Fri
    +26°/+17°
    feels +27°11.4 mm · 24%27 km/hUV 4 · Mod
    07:2519:47
  • Sat, Sep 19Sat
    +22°/+13°
    feels +20°0 mm · 13%17 km/hUV 5 · Mod
    07:2619:45
  • Sun, Sep 20Sun
    +22°/+10°
    feels +20°0 mm · 6%14 km/hUV 5 · Mod
    07:2719:43
  • Mon, Sep 21Mon
    +22°/+10°
    feels +20°0 mm · 10%19 km/hUV 5 · Mod
    07:2919:41
  • Tue, Sep 22Tue
    +20°/+11°
    feels +19°0 mm · 13%11 km/hUV 3 · Mod
    07:3019:39
  • Wed, Sep 23Wed
    +26°/+12°
    feels +24°0 mm · 23%18 km/hUV 5 · Mod
    07:3119:38
  • Thu, Sep 24Thu
    +22°/+14°
    feels +24°6.3 mm · 13%12 km/hUV 3 · Mod
    07:3219:36
  • Fri, Sep 25Fri
    +17°/+10°
    feels +15°0 mm · 13%15 km/hUV 4 · Mod
    07:3319:34

Weather Insight

Grand Rapids's 15-day outlook ranges from a low of 8°C to a high of 28°C, with an average daytime high near 23°C. Air quality is currently good (AQI 27), with no notable outdoor health concerns.

Today vs Normal

25°C+2° above normal

The long-term average high for today is 23°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: 26°C26°2026-08-20: 27°C27°2026-08-21: 26°C26°2026-08-22: 25°C25°2026-08-23: 22°C22°2026-08-24: 23°C23°2026-08-25: 26°C26°2026-08-26: 25°C25°2026-08-27: 26°C26°2026-08-28: 26°C26°2026-08-29: 26°C26°2026-08-30: 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 Grand Rapids

Over the next 15 days, Grand Rapids is forecast to see temperatures ranging from 8°C to 28°C, averaging a daily high of 23°C. The extended outlook indicates significant rainfall totalling 54.6 mm spread across 6 days. Conditions are suitable for most outdoor activities; carry an umbrella on days with showers.