Tomorrow's Weather Forecast - Ostrava

Tomorrow's weather in Ostrava. high 19°C (66°F), low 7°C (45°F). Foggy.

Tomorrow’s Outlook

Tomorrow will be 4°C warmer than today. Mild conditions with dry weather expected all day. Humidity holds around 73%, giving the air a damp, heavy feel even without much heat behind it. Winds stay light and calm, rarely topping 5 km/h. Sunrise is at 6:18 AM and sunset at 7:07 PM, for about 12h 49m of daylight.

Tomorrow
19°/ 7°
Today15° / 11°

Tomorrow’s Hourly Weather Outlook

Morning6 AM – Noon10°
Rain probability
0%
Wind speed
5 km/h
AfternoonNoon – 6 PM18°
Rain probability
3%
Wind speed
5 km/h
Evening6 PM – Midn16°
Rain probability
0%
Wind speed
5 km/h
NightMidn – 6 AM9°
Rain probability
0%
Wind speed
3 km/h

24-Hour Rain & Temperature Forecast

Tomorrow12 Sep
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Temperature · peaks at +19°C

Planning Advice for Tomorrow

Clothing
Warm jacket and comfortable layers recommended.
Outdoor
Good conditions for outdoor activities.
Travel
Standard travel conditions expected.

Sunrise & Sunset

Sunrise
Dawn 5:48 AM
Total Daylight
Full day forecastSolar noon 12:42 PM
Sunset
Dusk 7:37 PM
vs today-4 min daylight
Sunrise shift2 min later
Sunset shift2 min earlier

5-Day Weather Forecast

Full 15-Day Forecast
Today11 Sep
Rainy
15°/ 11°
100%
Rain
3–13
Wind
Tomorrow12 Sep
Foggy
19°/ 7°
3%
Rain
1–5
Wind
Sun13 Sep
Rainy
20°/ 11°
55%
Rain
3–12
Wind
Mon14 Sep
Rain Showers
19°/ 14°
87%
Rain
1–10
Wind
Tue15 Sep
Foggy
22°/ 12°
12%
Rain
1–5
Wind

Weather Insight

Ostrava is forecast to reach a high of 19°C tomorrow, with an overnight low around 7°C. That's 1° below the long-term average high of 20°C for this time of year. Expect little chance of rain (3% probability) and light winds averaging 5 km/h. Air quality is currently good (AQI 21), 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.