15-Day Weather Forecast - Ostrava

15-day weather forecast for Ostrava: temperatures from 7°C (45°F) to 22°C (72°F). Average daily high 17°C (63°F) over the next 15 days.

Hourly Forecast by Day

Today·11 Sep
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Temperature · peaks at +15°C

15-Day Temperature Trend

15°11°TodaySep19°7°Tmrw20°11°Sun19°14°Mon22°12°Tue16°10°Wed16°9°Thu20°7°Fri19°12°Sat16°11°Sun13°10°Mon16°8°Tue21°12°Wed13°9°Thu9°8°Fri
Colour scale for daily high temperature bars

15-Day Weather Forecast

Updated just now
  • Date
    High / Low
  • Fri, Sep 11Today
    +15°/+11°
    feels +14°9.4 mm · 100%13 km/hUV 1 · Low
    06:1619:09
  • Sat, Sep 12Tomorrow
    +19°/+7°
    feels +18°0 mm · 3%5 km/hUV 5 · Mod
    06:1819:07
  • Sun, Sep 13Sun
    +20°/+11°
    feels +19°3.1 mm · 55%12 km/hUV 4 · Mod
    06:1919:04
  • Mon, Sep 14Mon
    +19°/+14°
    feels +19°10.6 mm · 87%10 km/hUV 2 · Low
    06:2119:02
  • Tue, Sep 15Tue
    +22°/+12°
    feels +22°0 mm · 12%5 km/hUV 4 · Mod
    06:2219:00
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  • Wed, Sep 16Wed
    +16°/+10°
    feels +16°10.5 mm · 61%13 km/hUV 4 · Mod
    06:2418:58
  • Thu, Sep 17Thu
    +16°/+9°
    feels +15°1.5 mm · 49%11 km/hUV 1 · Low
    06:2518:56
  • Fri, Sep 18Fri
    +20°/+7°
    feels +18°0 mm · 14%18 km/hUV 4 · Mod
    06:2718:54
  • Sat, Sep 19Sat
    +19°/+12°
    feels +16°0 mm · 16%19 km/hUV 4 · Mod
    06:2818:51
  • Sun, Sep 20Sun
    +16°/+11°
    feels +14°1.2 mm · 22%20 km/hUV 3 · Mod
    06:3018:49
  • Mon, Sep 21Mon
    +13°/+10°
    feels +10°3.0 mm · 17%15 km/hUV 4 · Mod
    06:3118:47
  • Tue, Sep 22Tue
    +16°/+8°
    feels +13°0 mm · 20%13 km/hUV 4 · Mod
    06:3318:45
  • Wed, Sep 23Wed
    +21°/+12°
    feels +17°5.7 mm · 25%24 km/hUV 4 · Mod
    06:3418:43
  • Thu, Sep 24Thu
    +13°/+9°
    feels +14°19.2 mm · 31%14 km/hUV 4 · Mod
    06:3618:40
  • Fri, Sep 25Fri
    +9°/+8°
    feels +7°18.0 mm · 31%18 km/hUV 4 · Mod
    06:3718:38

Weather Insight

Ostrava's 15-day outlook ranges from a low of 7°C to a high of 22°C, with an average daytime high near 17°C. That's 4° below the long-term average high of 21°C for this time of year. Air quality is currently good (AQI 49), with no notable outdoor health concerns.

Today vs Normal

15°C-6° below normal

The long-term average high for today is 21°C.

20 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: 29°C29°2026-08-29: 26°C26°2026-08-30: 28°C28°2026-08-31: 27°C27°2026-09-01: 24°C24°2026-09-02: 25°C25°2026-09-03: 24°C24°2026-09-04: 27°C27°2026-09-05: 24°C24°2026-09-06: 21°C21°2026-09-07: 23°C23°2026-09-08: 29°C29°

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 Ostrava

Over the next 15 days, Ostrava is forecast to see temperatures ranging from 6°C to 22°C, averaging a daily high of 17°C. The extended outlook indicates significant rainfall totalling 82.2 mm spread across 10 days. Conditions are suitable for most outdoor activities; carry an umbrella on days with showers.