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Boise, ID

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NWS Forecast Office Boise, ID

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Last Map Update: Sat, Oct 10, 2026 at 4:56:10 am MDT

Cool and Wetter Conditions this Weekend
Average First Frost and Freeze Dates
Much cooler conditions are expected this weekend and into next week. Precipitation will increase, especially Sunday and Monday, with precipitation most likely for higher terrain and across south-central Idaho. Light snow accumulations are possible over high elevations of central Idaho.
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This graphic shows the average first Frost and Freeze dates across a few lower elevation sites. Most sites reach frost and/or freeze in the month of October.
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