See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
8°
Clear
Feels Like: 9°
Min: 8°
Max: 20°
The next few hours will be clear, with today reaching 20°C and dropping to 11°C. The coming days will be mostly cloudy throughout the day.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:31
Sunrise
18:48
Sunset
Moon
Waxing Crescent
11:26
Moonrise
20:14
Moonset
Daily Forecast
Today
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
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Weather in Chelmsford today, September 15, 2026
Chelmsford is set for a fine, sunny day on September 15, 2026, with only limited interruptions to the clear sky. The early hours look particularly favourable for being outside. Morning skies stay relatively clear, holding cloud close to 5% near 11:00. The early part of the day favours being outside.
Temperatures climb from an overnight low near 8°C toward a daytime high of about 20°C. Expect humidity between 47% and 90%, most humid near 23:00. Airflow remains manageable, reaching about 3.1 km/h around 21:00.
The afternoon keeps an overcast feel, as cloud reaches about 88% around 16:00. Outdoor plans may still want a flexible backup. Horizontal visibility holds close to 16.1 km. The sun rises at 06:31 and sets at 18:48, for a total of 12 hours 16 minutes of sunlight today.
Taken together, settled sunshine in Chelmsford on September 15, 2026 makes outdoor timing easier, with highs near 20°C.
Frequently asked questions about weather in Chelmsford
How warm does it get in Chelmsford?
The warmest month in Chelmsford 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 Chelmsford?
The coldest month in Chelmsford 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 Chelmsford?
The wettest month in Chelmsford is December, with an average of 116mm of precipitation.
What is the driest time of year in Chelmsford?
The driest month in Chelmsford is June, with an average of 76mm of precipitation.
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