Boise missed tying the record for high temperature Saturday by one degree. The thermometer at the Boise Airport registered 102 degrees shortly before 6 p.m.
The record for the date is 103 degrees set in 1990.
Records were set at Mountain Home Air Force Base and in Burns, Ore.
It warmed up to 106 degrees in Mountain Home, breaking the old record of 103 set in 1996, according to the National Weather Service.
It only reached 96 degrees in Burns, but that was enough to break the old record of 93, set in 2008.
The Boise forecast calls for a high temperature of 101 on Sunday, 103 on Monday and 106 on Tuesday. If those predictions hold, the latter two days would set records.