Weather report 18 October 2026, 12:00

London stays dry through the afternoon, with temperatures reaching 13–14 °C and the sun breaking through at times. The northerly wind blows at 15–20 km/h with gusts near 40 km/h, which is noticeable on open ground. From 19:45 rain spreads in and continues until midnight, bringing around 3 mm, so a waterproof jacket belongs in any evening plan.

After midnight the rain eases to light drizzle and clears around 04:00. At around 10 °C the night is mild for mid-October but clearly cooler than the afternoon.

Monday starts at about 10 °C and stays dry through the morning after the overnight drizzle, with brighter spells as temperatures climb to 13–14 °C by midday. The next rain is not due until late evening, from around 22:00.

Tuesday is the wettest day of the stretch: highs around 13 °C come with roughly 14 mm of rain and very little sunshine. Wednesday stays changeable and turns windy, with gusts up to 55 km/h. Thursday brings more dry spells at 12 °C, before Friday turns unsettled with gusts to 65 km/h and heavy rain.

The retrospective model data shows how quickly autumn has taken hold: Thursday's maximum was still 20.6 °C, while since Friday values have sat between 13 and 14 °C. Yesterday's figures give a 13.7 °C high and 6.9 hours of sunshine – dry but cool, and today's afternoon follows much the same pattern. Tuesday and Friday together look set to deliver more rain than the whole of the past week.

The wind comes from the north to north-east at 15–20 km/h, gusting to 40 km/h, and is most noticeable on open ground through the afternoon. On the Thames bridges and exposed cycle routes it makes for hard going. Gusts of up to 55 km/h are expected on Wednesday and 65 km/h on Friday.