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Hourly Forecast
Daylight Hours
06:57
Sunrise
19:08
Sunset
Moon
Waxing Crescent
12:43
Moonrise
21:19
Moonset
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Weather in Potomac today, September 16, 2026
Expect a mostly clear day in Potomac on September 16, 2026, with sunshine dominating from morning through evening. Cloud should stay limited, so the overall feel remains bright and settled. Expect a brighter morning, with limited cloud around 4% by 11:00. Conditions start on a settled note.
The day peaks near 31°C and cools toward 14°C. Moisture in the air spans 35%-61%, with the highest values around 23:00. A lighter breeze peaks around 17:00 near 2.9 km/h.
The afternoon keeps an overcast feel, as cloud reaches about 100% around 19:00. Outdoor plans may still want a flexible backup. Views remain open at about 16.1 km. Daylight runs from 06:57 to 19:08, lasting 12 hours 11 minutes of sunlight today.
In short, September 16, 2026 looks like a fine day in Potomac for being outside, peaking around 31°C.
Frequently asked questions about weather in Potomac
How warm does it get in Potomac?
The warmest month in Potomac is July, with average high temperatures of 32°C. The average temperature during this period is around 27°C.
How cold does it get in Potomac?
The coldest month in Potomac is January, with average low temperatures of -1°C. The average temperature during this period is around 2°C.
What is the wettest time of year in Potomac?
The wettest month in Potomac is July, with an average of 146mm of precipitation.
What is the driest time of year in Potomac?
The driest month in Potomac is November, with an average of 73mm of precipitation.
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