An early autumn chill is affecting many parts of the United States as colder air filters south out of Canada around a large area of high pressure centred over the north-western United States. Many places will be fine and settled thanks to that high, but over parts of the Southeast a slow-moving frontal system will bring further heavy showers and thunderstorms. Meanwhile the remnants of ex-Hurricane Odile will bring some very wet weather to the southwest with flooding likely to be an issue.
Starting off with the South and once again heavy showers and thunderstorms are expected in areas from Texas across to the Gulf Coast and Florida bringing a risk of heavy downpours and localised flooding. Temperatures will be in the high 70's or 80's for much of the region, but along the Gulf Coast the low 90's are expected.
It will be a dry and bright day across much of the Northeast today with plenty of sunny spells around. Temperatures will reach the 50's and 60's in most places, perhaps the 70's in the south, but they will fall sharply under clear skies tonight with a frost forming in the north especially.
Into the Midwest and there will be plenty of dry and bright weather around but a scattering of heavy showers and thunderstorms will develop this afternoon over eastern Kansas and southern Missouri. Maximum temperatures only in the 50's for the north of the region but rising towards the high 80's over the southern Plains.
Finally the West and whilst many places will be dry and fine today, heavy rain will affect southeast Arizona and much of central and southern New Mexico flash flooding as several inches of rain fall. Temperatures will range from the 60's and 70's in the north to the 90's over California and the Desert Southwest but here the recent heatwave will start to ease.