Wet weather was forecast to persist in the West, with the Eastern half of the country seeing more mild weather.
A low pressure system in the West was expected to linger over southern California and continue pushing moisture over the Western half of the country. This would allow for scattered showers and thunderstorms to develop again over the Four Corners and Great Basin, with rainfall totals ranging from a quarter to a half of an inch. To the north, however, drier conditions and mild weather were expected as a small ridge of high pressure built over the Pacific Northwest. This was forecast to bring mostly sunny skies with seasonable temperatures to Washington, Oregon and northern California.
In the East, a frontal boundary would slowly move southeastward throughout the day. The system was forecast to start the day over the Ohio River Valley and New England, and reach into the Tennessee Valley and Mid-Atlantic states by evening. This system was not expected to kick up significant rainfall, thus, less than a quarter of an inch of rain was expected. South of this front would remain warm and dry. These conditions were favorable for rapid fire spread, thus, fire advisories remained in effect across the Gulf states.
In the Plains, high pressure would bring another mild Fall day. A few patchy clouds were expected with the Northern Plains remaining in the 50s and 60s, while the Southern Plains would reach into the 80s again.
Temperatures in the Lower 48 states Monday ranged from a low of 11 degrees at Pleasant Valley, Mont., to a high of 92 degrees at Pecos, Texas.