Boise is set for another rainy weekend. This one is an ‘unusual event’
Boise is set for yet more wet days this weekend, marking the third weekend in a row that Treasure Valley residents have had their weekends derailed by the weather.
This time around, the weekend’s rainfall will be a “pretty unusual event,” according to National Weather Service meteorologist Anna Lindeman.
Despite a gorgeous Saturday temperature outlook that will see a high temperature of 86 degrees, rain clouds will move into the Boise area sometime after 1 p.m., with the potential for thunderstorms. Rain will start farther north in the Boise Foothills and mountains earlier in the day, potentially spoiling the first weekend that Bogus Basin is back open.
The rain intensity for Boise will ratchet up throughout the evening and continue until Monday morning. Sunday’s forecast shows a 90% chance of rain with a high temperature of 68 degrees.
The Weather Service is predicting at least three-quarters of an inch of rain and up to 1 inch for the weekend, which will most likely blow past the average rainfall total for Boise in June.
Since 1940, Boise has averaged 0.82 inches of precipitation in June. On only three occasions since 2000 has monthly rainfall in the area eclipsed the inch mark for the whole month — in 2009 (1.5), 2017 (1.4), and 2020 (3.3).
This month, Boise could see more than 1 inch of rain with just one storm this weekend.
“The amount of precipitation that we’re expecting is nearing records for this time of year,” Lindeman told the Idaho Statesman. “So it’s pretty uncalled for.”
Temperatures will drop to 62 degrees on Saturday night and only rebound to 68 degrees during the day on Sunday as a cold front moves in with the storms. A secondary weaker front will move in behind the first one, dropping temperatures to as low as 48 degrees on Sunday night and producing a high of just 60 degrees on Monday.
“Those cooler temperatures are probably going to linger through Tuesday before we really start to warm up,” Lindeman said.
