- Clothing
- Waterproof jacket and umbrella strongly recommended.
Tomorrow's Weather Forecast - Baltimore
Tomorrow's weather in Baltimore. high 27°C (81°F), low 20°C (68°F). Overcast.
Tomorrow’s Outlook
Tomorrow brings a similar temperature to today. Expect heavy rain in the evening, with rain chances climbing as high as 77%. That risk lines up with humidity averaging 83% through the day the more moisture in the air, the more readily clouds build into showers. Humidity stays high near 83%, so it will feel muggier and stickier than the temperature alone suggests. A light breeze near 16 km/h is expected. Sunrise is at 6:45 AM and sunset at 7:19 PM, for about 12h 34m of daylight.
- Tomorrow
- 27°/ 20°
- Today26° / 21°
Tomorrow’s Hourly Weather Outlook
Morning6 AM – Noon22°
- Rain probability
- 10%
- Wind speed
- 14 km/h
AfternoonNoon – 6 PM26°
- Rain probability
- 13%
- Wind speed
- 16 km/h
Evening6 PM – Midn25°
- Rain probability
- 77%
- Wind speed
- 13 km/h
NightMidn – 6 AM21°
- Rain probability
- 1%
- Wind speed
- 7 km/h
24-Hour Rain & Temperature Forecast
Tomorrow12 Sep
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Planning Advice for Tomorrow
- 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 6:15 AMTotal Daylight
Full day forecastSolar noon 1:02 PM
Sunset
Dusk 7:49 PMvs today-3 min daylight
Sunrise shift1 min later
Sunset shift2 min earlier
5-Day Weather Forecast
Full 15-Day ForecastWeather Insight
Baltimore is forecast to reach a high of 27°C tomorrow, with an overnight low around 20°C. That's 1° above the long-term average high of 26°C for this time of year. It continues a recent pattern — 16 of the last 28 days with published data have run warmer than normal. Expect a high chance of rain (77% probability) and a gentle breeze averaging 16 km/h. Air quality is currently Moderate (AQI 52), driven mainly by PM2.5 at 9.8 μg/m³.
Today vs Normal
26°C0° below normal
The long-term average high for today is 26°C.
16 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.
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.