Metro Denver's warm spell will cool down this evening, but another spate of unseasonably warm weather is waiting its turn and should be here by Sunday.

Denver should see a high of 57 today, before cooling to 42 on Friday and 49 on Saturday.

The urban corridor and the plains could see some rain this afternoon and evening, and then some snow late Friday night.

Sunday rebounds with a 63, some 13 degrees warmer than normal for the first of March.

Monday and Tuesday will be in the mid- to upper 60s.

Meanwhile, snowshowers will continue in the mountains today through tonight with new accumulations of about 3 inches possible.

Snow is likely again for the mountains on Friday with a couple of inches expected, but the next good chance of snow after that will be the middle of next week.

Interstate 70 westbound starts getting west at Floyd Hill, then it turns to ice and snow about Georgetown all the way to Edwards.

Conditions are bad enough that the largest trucks and buses are required to have chains on their tires on Berthoud, Loveland and Vail passes and through the Eisenhower Tunnel.

Steamboat Springs could get some snow after 11 this morning. Winds could gust as high as 25 mph.

Snow is likely Friday night and Saturday at the ski resort town, with gusts up to 35 mph. By early next week, highs will be in the low 40s, with no snow expected.

Gunnison has no snow in the forecast through the middle of next week, with highs in the mid-30s to the low 40s.

Weather on the eastern Plains should mirror that along the Front Range, except today the plains will be quite a bit windier, with sustained winds of 22 mph.

March patters in like a lamb on Sunday, but beware the mercurial moods of the third month of the year in Colorado.

National Weather Service meteorologists warn that March is known for its frequent and rapid changes, as Arctic fronts and Pacific systems compete to confuse Coloradans as to whether it is winter or spring.

They can't forget March 8, 1992, which started out sunny over Denver, and reached 52 degrees by midday.

In the afternoon tornadoes, hailstorms and thunderstorms formed, then in the later afternoon a Canadian cold front zipped across the east, dropping temperatures and dropping a foot of snow.

Happy March.