PITTSBURGH (KDKA) – Above average temperatures will continue Sunday, but the warmest is still to come.

At wake up Sunday in downtown Pittsburgh, temperatures began the day in the mid-60s.

READ MORE: Report: Drug Executive Emails Mocked Appalachians

Photo Credit: (KDKA)

The average temperature for this time of year is in the low to mid-70s. On Sunday, temperatures will climb to a high of 82 degrees.

Across the western Pennsylvania region, temperatures will be coupled by humidity to create what would feel like an August day.

Current Conditions | School Delays & Closings | Local Radar | Weather App | Photos

As the temperatures begin to rise and heat enters the region, storms and showers will begin brewing again. The best chance to see scattered rain and thunderstorms will be in the afternoon and early evening hours of the day on Sunday.

The National Weather Service in Pittsburgh is actively monitoring a weather system moving into western Pennsylvania.

A large weather system moving into the area has the potential to create damaging wind and large hail, according to a post on Twitter.

Officials at the National Weather Service say they are expecting downed trees and power lines as part of the storm.

The biggest impact will be from 4 p.m. to 9 p.m., according to forecast models.

Temperatures will dip down to a low of 65 degrees overnight into Memorial Day.

Monday will be the polar opposite of the first part of the holiday weekend. Forecasts show that Monday will usher in comfortable temperatures under partly cloudy skies. The best part: no rain until at least midnight going into Tuesday morning.

Photo Credit: (KDKA)

Highs on Memorial Day will reach a high of 79 degrees before dropping to a low of 61 degrees overnight into Tuesday.

Photo Credit: (KDKA)

For the delayed beginning of the work week, temperatures will continue to climb the thermometer. Wednesday looks to be the warmest forecasted day on the horizon with highs reaching almost 90 degrees.

MORE NEWS: Allegheny Co. Police Investigating McKeesport Shooting, Man In Critical Condition

Stay up to date with the KDKA app, which you can download here.