Tomorrow's Weather Forecast - Cincinnati

Tomorrow's weather in Cincinnati. high 27°C (81°F), low 21°C (70°F). Rainy.

Tomorrow’s Outlook

Tomorrow brings a similar temperature to today. Expect heavy rain, with rain chances climbing as high as 33%. That risk lines up with humidity averaging 91% through the day the more moisture in the air, the more readily clouds build into showers. Humidity stays high near 91%, so it will feel muggier and stickier than the temperature alone suggests. Expect a steady breeze around 30 km/h through the day. Sunrise is at 7:16 AM and sunset at 7:51 PM, for about 12h 34m of daylight.

Tomorrow
27°/ 21°
Today28° / 19°

Tomorrow’s Hourly Weather Outlook

Morning6 AM – Noon22°
Rain probability
33%
Wind speed
9 km/h
AfternoonNoon – 6 PM25°
Rain probability
33%
Wind speed
14 km/h
Evening6 PM – Midn22°
Rain probability
14%
Wind speed
30 km/h
NightMidn – 6 AM21°
Rain probability
15%
Wind speed
5 km/h

24-Hour Rain & Temperature Forecast

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Temperature · peaks at +27°C

Planning Advice for Tomorrow

Clothing
Waterproof jacket and umbrella strongly recommended.
Outdoor
Not ideal for outdoor plans or car washes — heavy rain expected.
Travel
Expect traffic slowdowns from wet roads. Allow extra time.

Sunrise & Sunset

Sunrise
Dawn 6:46 AM
Total Daylight
Full day forecastSolar noon 1:33 PM
Sunset
Dusk 8:21 PM
vs today-3 min daylight
Sunrise shift1 min later
Sunset shift1 min earlier

5-Day Weather Forecast

Full 15-Day Forecast

Weather Insight

Cincinnati is forecast to reach a high of 27°C tomorrow, with an overnight low around 21°C. That's 1° below the long-term average high of 28°C for this time of year. It continues a recent pattern — 14 of the last 28 days with published data have run cooler than normal. Expect a low chance of rain (33% probability) and moderate breezes averaging 30 km/h. Air quality is currently good (AQI 49), with no notable outdoor health concerns.

Today vs Normal

28°C0° below normal

The long-term average high for today is 28°C.

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

It continues that pattern - today's forecast is also running below normal.

2026-08-28: 29°C29°2026-08-29: 30°C30°2026-08-30: 32°C32°2026-08-31: 33°C33°2026-09-01: 34°C34°2026-09-02: 35°C35°2026-09-03: 35°C35°2026-09-04: 35°C35°2026-09-05: 32°C32°2026-09-06: 27°C27°2026-09-07: 29°C29°2026-09-08: 31°C31°

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.