Medford residents can expect more record-setting temperatures in the 90s today as a high-pressure system continues its grip on the West.

Medford residents can expect more record-setting temperatures in the 90s today as a high-pressure system continues its grip on the West.

The National Weather Service forecast a high of 91 degrees today for Medford, one day after the first official heat wave of the year pushed the high to 90 degrees.

"We hit 90 for the first time this year, at 4:03 p.m.," weather service meteorologist Marc Spilde said on Monday. "It's not so bad. It could have been worse."

It hasn't been that hot on an April 20 since 1986, one of several years when temperatures on that day hit 88 degrees in Medford, Spilde said.

Today's record also is 88 degrees and also was set in 1986.

As a thermal trough moves inland from the coast today, the heat will repeat itself and there is even "the very slight chance" of afternoon thunderstorms in the mountains of southeast Jackson County, Spilde says.

But relief is on the way.

A new system moving south down the Canadian coast should cool things off considerably by Thursday, when the forecast high of 61 degrees is more like the normal highs of 65 degrees for this week in April, Spilde said.