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Hourly Forecast
Daylight Hours
06:38
Sunrise
18:56
Sunset
Moon
Waxing Crescent
10:27
Moonrise
20:03
Moonset
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Weather in Sterling tomorrow, September 15, 2026
Sterling looks cloudy on September 15, 2026, with grey skies for much of the day. Sunshine stays limited, so the overall tone is muted from the morning onward. Expect a grey start, with morning cloud around 100% by 00:00. Outdoor plans early on should not rely on bright skies.
Expect highs of 21°C and cooler readings close to 13°C. The air stays humid, with relative humidity between 35% and 100% and the peak around 15:00. A lighter breeze peaks around 04:00 near 6.9 km/h.
The afternoon keeps an overcast feel, as cloud reaches about 89% around 16:00. Outdoor plans may still want a flexible backup. Visibility stays near 16.1 km. Sunrise is at 06:39 and sunset at 18:54, giving 12 hours 15 minutes of sunlight today.
Taken together, overcast skies in Sterling on September 15, 2026 favour indoor or covered options, with temperatures near 21°C.
Frequently asked questions about weather in Sterling
How warm does it get in Sterling?
The warmest month in Sterling is July, with average high temperatures of 33°C. The average temperature during this period is around 25°C.
How cold does it get in Sterling?
The coldest month in Sterling is January, with average low temperatures of -5°C. The average temperature during this period is around 0°C.
What is the wettest time of year in Sterling?
The wettest month in Sterling is May, with an average of 80mm of precipitation.
What is the driest time of year in Sterling?
The driest month in Sterling is December, with an average of 11mm of precipitation.
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