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Hourly Forecast
Daylight Hours
06:56
Sunrise
19:08
Sunset
Moon
Waxing Crescent
12:43
Moonrise
21:19
Moonset
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Weather in Rockville today, September 16, 2026
Conditions in Rockville on September 16, 2026 favour clear skies, so the day opens with a fine, sunny outlook. Any interruptions to the blue should be brief rather than lasting. Morning skies stay relatively clear, holding cloud close to 4% near 10:00. The early part of the day favours being outside.
Expect highs of 30°C and cooler readings close to 15°C. The air stays humid, with relative humidity between 38% and 64% and the peak around 23:00. Airflow remains manageable, reaching about 3.2 km/h around 10:00.
Through the afternoon skies look more workable, with cloud near 10% around 17:00. Later outdoor plans have a clearer window than the morning may have suggested. Views remain open at about 16.1 km. Daylight runs from 06:56 to 19:08, lasting 12 hours 11 minutes of sunlight today.
The practical takeaway for Rockville is a bright September 16, 2026, ideal for outdoor errands before temperatures ease from about 30°C.
Frequently asked questions about weather in Rockville
How warm does it get in Rockville?
The warmest month in Rockville 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 Rockville?
The coldest month in Rockville 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 Rockville?
The wettest month in Rockville is July, with an average of 146mm of precipitation.
What is the driest time of year in Rockville?
The driest month in Rockville is November, with an average of 73mm of precipitation.
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