Octo-brrr! Tri-Cities overnight temps to drop below freezing this week

A high of 63 on Tuesday afternoon will be the highest temperature Tri-Citians may see for a while.

Highs during the day will drop to 42 degrees by Saturday with lows dropping to high 20s and low 30s for the rest of the week, and a bitter cold of 23 is expected Sunday night, according the National Weather Service.

Trampolines will need to be tied down as the cold front Wednesday night comes with wind about 18 mph and gusts of up to 29 mph. By Thursday morning, wind will slow to 13 mph, but expect higher gusts.

The first frost of the season is predicted to arrive in the early hours of Thursday with snow expected in the higher elevations surrounding the Tri-Cities.

By Friday, rain is expected to fall with about a quarter-inch accumulation.

There is some chance of snow at higher elevation of 2,300 feet — in the Tri-Cities, mostly clear skies and sun will brighten the skies the last half of the week.

For those traveling to or from the Seattle area on I-90, widespread frost is expected all weekend on Snoqualmie Pass.

This story was originally published October 20, 2020 at 3:29 PM.