A yellow heat health alert has been issued for London, with scorching temperatures expected over the next few days.
The alert will be effective from tomorrow (July 29) at 9am until Wednesday (July 31) at 11pm.
The alert warns residents to prepare for scorching temperatures that pose health risks, particularly to vulnerable groups.
Today's forecast predicts a steady rise in temperature, starting at 21C at 11am, peaking at 26C by 4pm, and gradually cooling to 21°C by 11pm.
Tomorrow promises even hotter conditions, with temperatures climbing from 17C at 7am to a high of 29C in the afternoon.
Clear skies will dominate the evening, maintaining warm temperatures around 23C by 11pm.
Residents are advised to stay hydrated and avoid strenuous outdoor activities during peak heat hours.
Looking ahead, Tuesday through Thursday will see variable cloud cover with sunny spells and an increasing risk of thunderstorms by midweek.
The persistent heat and potential for sudden storms underscore the importance of staying informed and prepared during this heatwave.
Here is the hour-by-hour forecast for today (Sunday)
11am - Sunny 21C
12pm - Sunny 22C
1pm - Sunny intervals 23C
2pm - Sunny intervals 24C
3pm - Sunny intervals 25C
4pm - Sunny intervals 26C
5pm - Sunny intervals 26C
6pm - Sunny intervals 26C
7pm - Sunny 26C
8pm - Sunny 25C
9pm - Clear 23c
10pm - Clear 22C
11pm - Clear 21C
Here is the hour-by-hour forecast for tomorrow (Monday)
7am - Sunny 17C
8am - Sunny 19C
9am - Sunny 20C
10am - Sunny 23C
11am - Sunny 25C
12pm - Sunny 26C
1pm - Sunny 27C
2pm - Sunny 28C
3pm - Sunny 29C
4pm - Sunny 29C
5pm - Sunny 29C
6pm - Sunny 28C
7pm - Sunny 28C
8pm - Sunny 27C
9pm - Clear 25C
10pm - Clear 24C
11pm - Clear 23C
Forecast in full
Today:
Early fog patches soon clearing to leave a fine day, with spells of sunshine. Cloud increasing by the afternoon but remaining bright. Feeling warmer than Saturday and more humid too. Light winds. Maximum temperature 27 °C.
Tonight:
Cloud soon thinning and breaking to allow a chance of some mist by the end of the night. Winds remaining light. Minimum temperature 14 °C.
Monday:
Another fine day after the clearance of any early mist. Some cloud developing with winds remaining light, Feeling very warm by afternoon. Maximum temperature 29 °C.
Outlook for Tuesday to Thursday:
Variable amounts of cloud and bright or sunny spells. Feeling very warm or hot in sunshine. Increasing risk of thunderstorms by Wednesday.
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