Record heat in Boise as the temperature soars to 105 degrees for the first time this month and the third time this summer. The record high for Wednesday in Boise was 103 degrees set in 2020. This heat is about 15 degrees above normal.
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A Heat Advisory remains in effect for the Treasure Valley through 9pm Wednesday and through 9 pm Thursday for the central mountain. Use caution and limit outdoor excursion. Stay hydrated and wear sunblock.
The central mountains are seeing highs in the low 90s above 5000 feet and around 100 degrees up to 4000 feet. Sunshine on Wednesday will give way to clouds Thursday with a few thunderstorms possible later in the day and into the evening.
In the valley, temperatures peak on Wednesday as our high will drop to just below 100 on Thursday then mid 90s Saturday, and upper 80s on Sunday. Valley locations may not see any storms on Friday then just a slight chance Saturday evening. By Sunday, there is a better chance of showers popping up with locally heavy downpours.
Tropical Storm Hillary will strengthen into a major hurricane and move due north passing west of Cabo San Lucas. It will weaken over cooler water but what's left of this system could pass over San Diego, Los Angeles, and San Francisco. Deep tropical moisture associated with this storms will likely bring flooding rains to parts of California and the desert southwest.
This moisture is forecast to stream north and could bring heavy downpours into Idaho late Sunday into Monday. I will be watching the track of this system very closely as it could greatly affect our weather into early next week.
Stay connected right here and to my Facebook Page for updates on the potential for tropical moisture affecting your plans!