Harrow (Greater London) weather

Headline:

Chance of heavy showers and thunderstorms this weekend. Feeling warm.

Today:

Extensive low cloud across the region during the morning, should gradually burn back to the coast, where it may linger throughout the day. Some bright or warm sunny spells developing further inland. Feeling cooler on coasts, with an onshore breeze. Maximum temperature 25 °C.

Tonight:

Low cloud will drift back in off the North Sea overnight. Perhaps some clear spells further inland. Chance of some heavy thundery showers moving eastwards by dawn. Breezy and mild. Minimum temperature 14 °C.

Friday:

Low cloud will soon break up to give some bright or warm sunny spells during the day. Chance of further heavy and thundery showers breaking out in the afternoon. Breezy. Maximum temperature 24 °C.

Outlook for Saturday to Monday:

Brighter on Saturday but an increasing risk of heavy showers, perhaps thundery. Rain, heavy at times, for some on Sunday. Further rain, perhaps heavy, on Monday. Temperatures above average.

Showers with the potential for some longer spells of rain, heavy and perhaps thundery at times, will affect parts of England and Wales at first, especially in the south but tending to ease away to the southeast by the end of Tuesday. Elsewhere, generally settled conditions prevailing, albeit with low cloud and drizzle along North Sea coasts in particular; away from here, most places will experience above average temperatures during this period. A short-lived quieter spell of weather is possible then possible, before a transition to a more unsettled, mobile westerly pattern is most likely by midweek and beyond, with spells of wind and rain in many areas, but perhaps interspersed with occasional drier and brighter interludes.

Typical autumn weather will probably affect the UK with a mix of weather types through the first half of October. Periods of unsettled conditions, with wind and rain at times, will likely be interspersed with shorter spells of calmer and drier weather. Overall, wetter than average conditions are expected during this period, especially in central and southern areas. Temperatures are most likely to be close to or slightly above average overall, although some cooler spells are possible at times.