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The Treasure Valley's hottest day the day is almost here but how long will the triple-digit heat last?
Bri Eggers has the latest forecast: We'll likely get the first triple-digit day of the year for Boise on Monday. The last time Boise had 100°+ was August 11th, 2018, when it was 104°. With all of the heat pumping in from the south, some monsoonal moisture will also be moving in. This could trigger isolated afternoon thunderstorms for Sunday, Monday and Tuesday. However, with the extreme heat, little rainfall is expected, but there may be some gusty downburst winds.