Latest weather updates and forecast for Lewisham.
Lewisham, September 18, 2026 – Residents of Lewisham can expect a day of pleasant weather with sunny intervals, according to the latest forecast. The day will be marked by mild temperatures, making it a comfortable experience for most outdoor activities. the overall conditions are favourable for a typical late September day While there is a low chance of rain.
Today, September 18, 2026, Lewisham will experience sunny intervals throughout the day. The maximum temperature is predicted to reach 21°C, offering a mild and agreeable climate. Overnight, the temperature will drop to a low of 16°C, ensuring a cool evening. The average temperature for the day is expected to be around 18.5°C. Humidity levels are forecast to be at 83%, which is relatively high but should not cause significant discomfort given the mild temperatures. There is a very low chance of precipitation, with the daily chance of rain indicated as less than 5%. Wind speeds are expected to be moderate, with a maximum of 43.45 kph, which should not impede daily activities. The combination of sunny intervals and mild temperatures, with a high of 21°C and a low of 16°C, creates a comfortable environment. The warmest day in the upcoming forecast period is anticipated to be September 21st, with a high of 26°C. The coolest day is expected on September 23rd, with a low of 13°C.
The relatively high humidity at 83% is unlikely to be bothersome due to the absence of extreme heat. Residents are advised to enjoy the pleasant conditions, as the chance of rain is minimal. The moderate wind speeds will also contribute to a comfortable atmosphere, making it an ideal day for walks, park visits, or any other outdoor leisure activities. Looking ahead, Lewisham is set to experience a continuation of sunny intervals for the next several days. Temperatures are expected to gradually rise towards the end of the week before a slight dip. No significant precipitation is indicated throughout the week, with the weather remaining predominantly dry.
The weather forecast for Lewisham today suggests a day where outdoor plans can proceed with ease.