This Atlantic chart for Wednesday shows a classic run of LOW pressure systems (depressions) charging in from west to east towards the UK associated with an active jetstream. This week LOW pressure will bring rain and wind to western parts but most of these LOWS will skirt to the NE and hit Scotland and Northern England hardest whilst any trailing fronts reaching Reigate will have weakened considerably. In Reigate we can expect occasional light rain and some breezy weather (30 mph gusts) most days this week, particularly on Wednesday, but nothing dramatic and rain only amounting to 6 mm or so for the whole week. HIGH pressure ridges separate each depression bringing a few days of calm, dry and brighter weather. The next significant anticyclone (HIGH) is expected to build across the UK just in time for the weekend and London Marathon, hopefully bringing dry and pleasant weather. For Marathon day the weather currently looks like being 11ºC with light southerly winds and no rain.