15-Day Weather Forecast - Spokane

15-day weather forecast for Spokane: temperatures from 9°C (48°F) to 28°C (82°F). Average daily high 24°C (75°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°11°TodaySep25°12°Tmrw18°10°Sun19°9°Mon20°11°Tue23°12°Wed25°13°Thu28°14°Fri28°16°Sat27°17°Sun22°15°Mon21°12°Tue23°13°Wed26°15°Thu24°15°Fri
Colour scale for daily high temperature bars

15-Day Weather Forecast

Updated just now
  • Date
    High / Low
  • Fri, Sep 11Today
    +24°/+11°
    feels +22°0 mm · 3%8 km/hUV 5 · Mod
    06:2119:09
  • Sat, Sep 12Tomorrow
    +25°/+12°
    feels +22°0 mm · 25%17 km/hUV 5 · Mod
    06:2319:07
  • Sun, Sep 13Sun
    +18°/+10°
    feels +16°20.3 mm · 95%23 km/hUV 2 · Low
    06:2419:05
  • Mon, Sep 14Mon
    +19°/+9°
    feels +17°0.1 mm · 11%15 km/hUV 5 · Mod
    06:2519:03
  • Tue, Sep 15Tue
    +20°/+11°
    feels +18°0 mm · 1%8 km/hUV 4 · Mod
    06:2719:01
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  • Wed, Sep 16Wed
    +23°/+12°
    feels +21°0 mm · 1%7 km/hUV 5 · Mod
    06:2818:59
  • Thu, Sep 17Thu
    +25°/+13°
    feels +24°5 km/hUV 5 · Mod
    06:2918:57
  • Fri, Sep 18Fri
    +28°/+14°
    feels +26°0 mm · 3%7 km/hUV 5 · Mod
    06:3118:55
  • Sat, Sep 19Sat
    +28°/+16°
    feels +26°0 mm · 5%6 km/hUV 5 · Mod
    06:3218:53
  • Sun, Sep 20Sun
    +27°/+17°
    feels +24°0 mm · 3%15 km/hUV 5 · Mod
    06:3318:51
  • Mon, Sep 21Mon
    +22°/+15°
    feels +17°0 mm · 6%27 km/hUV 5 · Mod
    06:3518:49
  • Tue, Sep 22Tue
    +21°/+12°
    feels +19°0 mm · 9%11 km/hUV 4 · Mod
    06:3618:47
  • Wed, Sep 23Wed
    +23°/+13°
    feels +22°0 mm · 6%6 km/hUV 5 · Mod
    06:3818:45
  • Thu, Sep 24Thu
    +26°/+15°
    feels +23°0 mm · 6%17 km/hUV 5 · Mod
    06:3918:43
  • Fri, Sep 25Fri
    +24°/+15°
    feels +22°0 mm · 6%9 km/hUV 5 · Mod
    06:4018:40

Weather Insight

Spokane's 15-day outlook ranges from a low of 9°C to a high of 28°C, with an average daytime high near 23°C. That's 1° below the long-term average high of 24°C for this time of year. Air quality is currently Moderate (AQI 59), driven mainly by PM2.5 at 14 μg/m³.

Today vs Normal

24°C0° below normal

The long-term average high for today is 24°C.

15 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: 25°C25°2026-08-29: 20°C20°2026-08-30: 21°C21°2026-08-31: 27°C27°2026-09-01: 26°C26°2026-09-02: 22°C22°2026-09-03: 18°C18°2026-09-04: 18°C18°2026-09-05: 22°C22°2026-09-06: 23°C23°2026-09-07: 19°C19°2026-09-08: 22°C22°

Red = above normal, blue = at or below · last 12 days

Air Quality

Air Quality
Moderate

Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.

Extended Outlook for Spokane

Over the next 15 days, Spokane is forecast to see temperatures ranging from 9°C to 29°C, averaging a daily high of 23°C. The extended outlook indicates occasional showers on 2 days, with 20.4 mm total accumulation. Conditions are suitable for most outdoor activities; carry an umbrella on days with showers.