With a high of 105 degrees forecast for Wednesday, it may not seem like the Sacramento area is catching a break from the heat. But forecasts earlier in the week had the current heat wave peaking at 112 degrees Wednesday.
Instead, Wednesday's high is expected to match today's high of 105 degrees in downtown Sacramento, thanks to a cloud cover, said Johnny Powell, a meteorologist with the National Weather Service.
The mercury topped out at 103 degrees at Sacramento Executive Airport and at 108 in Marysville. Redding had the highest official reading in Northern California region at 116 degrees, just two degrees shy of its all-time record of 118 degrees, which has been reached three times, most recently on July 20, 1988, Powell said.
Although highs in the Sacramento region may be lower than forecast earlier in the week, overnight lows remain around 70 degrees, about 10 degrees higher than normal for this time of year. The overnight low Monday was 75 degrees.
"If you thought it was warm overnight," Powell said, "it was."
While the Sacramento area continued to swelter today, the Sierra was hit by heavy thunderstorms. Heavy rains were blamed for a mudslide that closed Interstate 80 in the late afternoon between Floriston and the state line. The National Weather Service issued a flood advisory and flash flood warnings.
Heavy rain is forecast for the Sierra again on Wednesday, along with highs in the low 90s for areas like Truckee.
In Sacramento, a high of 104 degrees is forecast for Independence Day.
Daytime highs are expected to drop into the 90s on Friday, with overnight lows returning to the more normal 60s.