See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
19°
Clear
Feels Like: 8°
Min: 13°
Max: 31°
The next few hours will be clear, with today reaching 31°C and dropping to 12°C. The coming days will be clear throughout the day.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:58
Sunrise
19:09
Sunset
Moon
Waxing Crescent
12:43
Moonrise
21:21
Moonset
Daily Forecast
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Thursday
Friday
Saturday
Sunday
Monday
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Friday
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Weather in Manassas today, September 16, 2026
Manassas starts September 16, 2026 under largely sunny skies, with bright spells setting the tone from the outset. Outdoor plans should enjoy long stretches of open sky as the day unfolds. Expect a brighter morning, with limited cloud around 3% by 11:00. Conditions start on a settled note.
The temperature range runs from about 13°C up to 31°C. Expect humidity between 37% and 81%, most humid near 09:00. Winds stay light, near 3.1 km/h by 10:00, so the day feels still more than breezy.
Through the afternoon skies look more workable, with cloud near 56% around 21:00. Later outdoor plans have a clearer window than the morning may have suggested. Views remain open at about 16.1 km. The sun rises at 06:58 and sets at 19:09, for a total of 12 hours 11 minutes of sunlight today.
Overall, Manassas on September 16, 2026 favours outdoor plans under mostly open skies, with a comfortable high near 31°C.
Frequently asked questions about weather in Manassas
How warm does it get in Manassas?
The warmest month in Manassas 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 Manassas?
The coldest month in Manassas is January, with average low temperatures of -1°C. The average temperature during this period is around 3°C.
What is the wettest time of year in Manassas?
The wettest month in Manassas is July, with an average of 129mm of precipitation.
What is the driest time of year in Manassas?
The driest month in Manassas is November, with an average of 71mm of precipitation.
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