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Hourly Forecast
Daylight Hours
06:30
Sunrise
18:49
Sunset
Moon
Waxing Crescent
10:18
Moonrise
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Weather in Billerica tomorrow, September 15, 2026
Expect a mostly clear day in Billerica on September 15, 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 8% by 10:00. Conditions start on a settled note.
The temperature range runs from about 10°C up to 19°C. Relative humidity sits between 58% and 88%, reaching its peak around 15:00. Winds stay light, near 12.3 km/h by 19:00, so the day feels still more than breezy.
Through the afternoon cloud remains the main feature, with cover near 93% around 12:00. Bright spells should stay limited even as the day wears on. Horizontal visibility sits around 16.0 km, briefly nearer 14.6 km. Expect sunrise at 06:31, sunset at 18:47, and 12 hours 16 minutes of sunlight today overall.
The practical takeaway for Billerica is a bright September 15, 2026, ideal for outdoor errands before temperatures ease from about 19°C.
Frequently asked questions about weather in Billerica
How warm does it get in Billerica?
The warmest month in Billerica is July, with average high temperatures of 29°C. The average temperature during this period is around 24°C.
How cold does it get in Billerica?
The coldest month in Billerica is January, with average low temperatures of -4°C. The average temperature during this period is around -1°C.
What is the wettest time of year in Billerica?
The wettest month in Billerica is December, with an average of 116mm of precipitation.
What is the driest time of year in Billerica?
The driest month in Billerica is June, with an average of 76mm of precipitation.
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