11.   A seasonably mild afternoon will prevail across the Northeast, though cumulus clouds building over mountains will produce spotty showers that will keep conditions cooler in some areas.

12.   A wedge of dry air will accompany high pressure in New England while farther south, onshore winds will bring clouds and spotty showers to the Middle Atlantic states.

13.   Ahead of the front, milder breezes from the southwest will be accompanied by spotty showers over the northern Ohio Valley and eastern Great Lakes.

14.   But spotty showers from variable clouds will be confined mainly to the St. Lawrence River Valley, including the island of Montreal.

15.   California will be partly sunny and seasonable while spotty showers cover Nevada and northwest Washington.

16.   Clouds and spotty showers will accompany a cold front in Texas and the eastern Gulf States, while the West remains mainly sunny and warm.

17.   Clouds and spotty showers will accompany a weak cool front crossing the interior Northeast.

18.   Clouds and spotty showers will surround a front stalled along the East Coast on Monday.

19.   Elsewhere, triple-digit heat will bake parts of the High Plains while spotty showers accompany the arrival of cool air along the Northwest coast.

20.   Elsewhere, a stream of clouds and spotty showers will stream northward from Texas to the central Plains, as moistening winds from the south develop.