Barnet residents should expect thundery showers on Sunday 13 September
BBC forecasts a 47% chance of thunder around 10 am while the Met Office predicts wet conditions from early morning until late morning
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Barnet will see wet weather on Sunday 13 September, with the BBC assigning a 47% probability of thunder and lightning at roughly 10 am, and the Met Office indicating rain between 5 am and 11 am. The forecast also lists a high of 23 °C and a low of 16 °C.
Why the forecast matters for local residents
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BBC forecasters rule out heatwave conditions, Met Office forecasts cooler highs and the drought is expected to continue until sustained rain arrives
The combination of early‑morning rain and a mid‑morning chance of thunder could affect commuters, outdoor events and school activities across the borough. Barnet Council has not issued a specific travel advisory, but the timing coincides with peak school drop‑off periods and the start of the Sunday market in Totteridge.
BBC weather experts described the expected conditions as "thundery showers and a gentle breeze". MyLondon reported that the BBC forecast includes a 47% likelihood of lightning, while the Met Office expects rain intensity of up to 0.4 mm per hour around 9 am.
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Thundery showers and a gentle breeze.
BBC weather experts
The recent heatwave, which pushed temperatures to 38.1 °C earlier in the weekend, has ended, making the cooler, wetter spell a marked shift. Residents who experienced the heat may find the rain a welcome relief, but the sudden thunder could pose a risk for anyone outdoors.
What residents can do now
People planning to travel by bus or train should check real‑time service updates before leaving home, as wet tracks can cause minor delays. Parents sending children to school should allow extra time for the morning commute. Carrying an umbrella or raincoat is advisable from the start of the day.
Barnet Council has not announced any road closures or special measures for the weather. The council’s environmental health team will continue to monitor drainage performance, especially in low‑lying areas such as the Mill Hill Brook catchment.
The next formal weather update is expected from the Met Office later on Sunday afternoon, which may adjust the timing or intensity of the rain. Residents should stay tuned to local news outlets and official council channels for any changes.
Questions this report answers
+What is the chance of thunder on Sunday morning?
The BBC forecast assigns a 47% likelihood of thunder and lightning at about 10 am on 13 September. This probability means there is a moderate chance of lightning, so residents should stay under cover during that period.
+When is rain expected to start in Barnet?
The Met Office predicts wet weather to begin at 5 am and continue until 11 am on Sunday. The rain intensity could reach 0.4 mm per hour around 9 am, so umbrellas should be ready from early morning.
+What temperatures will the day reach?
The forecast lists a maximum temperature of 23 °C and a minimum of 16 °C for Sunday 13 September. These figures represent a cooler day compared with the recent heatwave, but still warm enough for a gentle breeze.
+How should residents prepare for the weather?
People should carry rain gear, check transport updates before traveling, and allow extra time for school runs. Monitoring later Met Office updates will help adjust plans if the rain intensity changes.
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