A low-pressure system moving through the Intermountain West and northern Rockies was expected to bring showers and thunderstorms from New Mexico to the Dakotas.

Showers were forecast for northern Idaho and Montana, although snow flurries were possible in western Montana. Scattered showers and thunderstorms were also forecast for the southern Plains and lower Mississippi Valley.

A front moving through New England was expected to bring scattered showers to the northern part of the region and steady rain to the southern part.

The Southwest and inland areas of California were expected to rise into the 90s and 100s. The Southeast and Mississippi Valley were forecast to rise into the 80s and 90s, while the Northeast was to see temperatures in the 70s, 80s and 90s.

Temperatures in the Lower 48 states Saturday ranged from a low of 31 degrees at Stanley, Idaho, to a high of 117 degrees at Death Valley, Calif.