1926 - The temperature at Yellowstone Park dipped to nine degrees below zero. It was the coldest reading of record in the U.S. during September. Severe freezes were widespread over the northwestern U.S. causing great crop destruction. In Washington State, Spokane County experienced their earliest snow of record. Harney Branch Experiment Station in Oregon reported a temperature of 2 degrees above zero to establish a state record for the month of September.
More on this and other weather history
Day: Showers and thunderstorms likely. Mostly cloudy. High near 91, with temperatures falling to around 85 in the afternoon. Southwest wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
Night: Showers and thunderstorms likely before 7pm, then a chance of showers and thunderstorms between 7pm and 4am, then a chance of showers and thunderstorms. Mostly cloudy. Low around 72, with temperatures rising to around 74 overnight. Southwest wind 0 to 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Day: Showers and thunderstorms likely before 1pm, then showers and thunderstorms likely between 1pm and 4pm, then showers and thunderstorms between 4pm and 5pm, then showers and thunderstorms likely. Partly sunny. High near 83, with temperatures falling to around 81 in the afternoon. West wind 0 to 5 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Night: A chance of showers and thunderstorms before 10pm, then a chance of showers and thunderstorms between 10pm and 1am. Partly cloudy, with a low around 66. Northwest wind around 0 mph. Chance of precipitation is 30%.
Day: A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 86. Northwest wind 0 to 5 mph. Chance of precipitation is 20%.
Night: A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 63. North wind 0 to 5 mph. Chance of precipitation is 20%.
Day: Sunny, with a high near 88. North wind 0 to 5 mph.
Night: Mostly clear, with a low around 63. North wind 0 to 5 mph.
Day: Sunny, with a high near 88. Northeast wind around 5 mph.
Night: Mostly clear, with a low around 63. Northeast wind 0 to 5 mph.
Day: Sunny, with a high near 89. Northeast wind 0 to 5 mph.
Night: Mostly clear, with a low around 65. Southwest wind 0 to 5 mph.
Day: Mostly sunny, with a high near 89. Northeast wind 0 to 5 mph.
Night: Partly cloudy, with a low around 65. East wind 0 to 5 mph.
Tue's High Temperature
108 at 16 Miles Southwest Of Tecopa, CA and Death Valley, CA
Wed's Low Temperature
19 at 14 Miles West-southwest Of Mackay, ID