Wild winds left thousands of Abbotsford and Mission residents without power during the iciest night of the cold snap.

Monday's storm had 4,000 to 5,000 customers experiencing outages in the early evening when the wind was strongest, said BC Hydro spokeswoman Simi Heer.

Environment Canada issued an Arctic outflow warning on Monday, predicting wind chill temperatures of below -20 C overnight.

Gusts of 93 km/h were recorded at the Abbotsford airport around 6 p.m. yesterday, and the wind chill early this morning reached - 19 C.

Today 300 homes in Abbotsford, and 200 in Mission are still without power.

Crews are working round the clock to address remaining problem areas, and repairs should be finished by 4 p.m. this afternoon, said Heer.

More than 23,000 BC Hydro Customers throughout the Fraser Valley were without power overnight.

Meteorologist Mark Madryga said despite being "mighty cold", no temperature records were broken yesterday, and none are likely to be shattered tonight either.

"It's certainly one of the coldest stretches for this time of year on the South Coast and in Abbotsford," he said.

"But there was a record cold snap of almost two weeks of bitterly cold Arctic air way back in 1985."

The outflow wind warning was lifted in the Abbotsford area today, but 30km/h winds with chill values below -20 C are expected to rip through Hope this afternoon and tonight.

However, the cold will persist until Thursday afternoon when warmer, wetter weather is anticipated

The forecasts today call for a high of -5 C and low of -11 C tonight.

There is a 40 per cent chance of snow Wednesday afternoon and Thursday morning.