Boise Eyes Near-Record Highs Through Friday
Forecasts show Boise reaching around 70 degrees Wednesday through Friday before a Pacific storm brings a much cooler, showery weekend.
Updated on Nov. 11, 2026 in Current Conditions
Boise's forecast high is 70 degrees Wednesday, November 11, one degree below the record of 71, and 70 degrees Thursday, tying the daily record. A Pacific storm arriving Friday night brings rain, mountain snow, and cooler weather starting Saturday.
Why it matters
Temperatures are forecast to run 10 to 20 degrees above normal for mid-November, a sharp departure from typical conditions for the time of year. The rapid cooldown ahead of the weekend reflects the approach of a Pacific storm system.
Friday night showers carry an 80% chance of rain, with one-tenth to one-quarter inch possible, while gusts of 35 to 50 mph are possible across open areas of southeast Oregon and far southwest Idaho. Exact snow totals and how far gusts reach into the valley have not been determined.
The details
A strong southerly flow is holding unusually mild air over southwest Idaho and southeast Oregon. As a Pacific storm approaches, south to southwest winds will increase, and snow levels are expected to fall toward 6,000 feet as colder air arrives.
Timeline
Wednesday, November 11: Boise forecast near 70 degrees, one degree below record.
Thursday, November 12: Boise forecast 70 degrees, tying daily record.
Friday, November 13: Boise forecast 69 degrees, tying daily record; showers after 11 p.m.
Saturday, November 14: Temperatures cool to around 58 degrees with morning showers possible.
Monday and Tuesday, November 16-17: Another storm brings precipitation and highs in the 50s.
Seasonal Patterns
The forecast places Boise's mid-November highs within a degree of the daily records on file for these dates, running far above the normal high of 51 degrees for November 11. Such departures from the seasonal norm are measured against long-running Boise climate records.
Residents should plan for gusty winds of 35 to 50 mph in open areas Friday and secure loose outdoor items. Expect a sharp drop in temperatures to the 50s by Saturday, so keep cold-weather clothing accessible for the weekend.
The takeaway
Boise's warm stretch is brief, so take advantage of the mild days Wednesday and Thursday before the weekend cooldown arrives. Plan outdoor activities accordingly and watch for Friday's windy, showery conditions.
What happens next
A Pacific storm is expected to bring rain and mountain snow Friday night, with another system forecast to bring precipitation Monday and Tuesday.
Further reading
For the latest readings, check Boise Current Conditions as the warm spell gives way to the weekend storm.
