London Marathon weather forecast
High pressure will influence the UK’s weather this weekend, but what does that mean for the thousands of people running the TCS London Marathon?
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Cloudy Saturday, rain soon arriving.
A dry but cloudy start to Saturday, then rain and drizzle soon arriving in the northwest. This spreads southeast to all parts through the afternoon. Maximum temperature 10 °C.
Cloud with patchy light rain or drizzle persisting throughout the evening and overnight. Some drier and perhaps clearer spells developing towards Skye and Wester Ross overnight. Minimum temperature 6 °C.
Cloudy but mostly dry Sunday, patchy rain in the northwest. Some drier and brighter spells in the morning, clouding over through the day. Maximum temperature 12 °C.
Cloudier Monday but mostly dry with a few outbreaks of patchy rain. Clearer Tuesday and Wednesday with sunny spells.
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This period will be dominated by high pressure to the northwest of the UK and lower pressure to the southeast over the near continent, and the extent to which either of these systems dominates at any particular time. The wind will probably therefore predominantly come from a northerly direction, so temperatures overall are likely to remain around or a little below average, with any warmer conditions will generally be further west - and near some eastern coasts it could feel quite cold at times. There should be a reasonable amount of dry weather around, especially in the north and west, but some rain or showers are likely at times, most-likely in the south and east at first, but with an increasing risk elsewhere towards early May.
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In this period, the chances of unsettled weather are slightly less than usual in the north and about the same as usual further south. Therefore, some spells of wetter weather are likely for all, but perhaps especially southern areas at first with the driest conditions probably further north. Temperatures will probably near or a little below average at first, but likely to recover to around or a little above average through early-mid May. Also worth noting that average temperatures themselves rise by around 1C per week at this time of year.
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