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Hourly Forecast
Daylight Hours
06:39
Sunrise
18:53
Sunset
Moon
Waxing Crescent
12:41
Moonrise
20:52
Moonset
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Weather in Round Lake Beach today, September 16, 2026
Expect a muted, overcast feel in Round Lake Beach on September 16, 2026 as cloud persists. Brighter breaks, if they arrive, should stay brief. Cloud leads the morning, peaking close to 100% near 09:00. Sunshine has little room until later in the day.
Temperatures climb from an overnight low near 16°C toward a daytime high of about 22°C. The air stays humid, with relative humidity between 63% and 80% and the peak around 23:00. Winds stay light, near 4.7 km/h by 10:00, so the day feels still more than breezy.
The afternoon keeps an overcast feel, as cloud reaches about 100% around 12:00. Outdoor plans may still want a flexible backup. Visibility stays near 16.1 km. Daylight runs from 06:39 to 18:53, lasting 12 hours 13 minutes of sunlight today.
Taken together, overcast skies in Round Lake Beach on September 16, 2026 favour indoor or covered options, with temperatures near 22°C.
Frequently asked questions about weather in Round Lake Beach
How warm does it get in Round Lake Beach?
The warmest month in Round Lake Beach is July, with average high temperatures of 27°C. The average temperature during this period is around 23°C.
How cold does it get in Round Lake Beach?
The coldest month in Round Lake Beach is January, with average low temperatures of -6°C. The average temperature during this period is around -3°C.
What is the wettest time of year in Round Lake Beach?
The wettest month in Round Lake Beach is May, with an average of 122mm of precipitation.
What is the driest time of year in Round Lake Beach?
The driest month in Round Lake Beach is February, with an average of 55mm of precipitation.
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