Temperature
Hot by day, mild at night.
91°Ftypical Aug high
Boise
United States · North America
Boise is most comfortable in April and October. Summers are hot and winters are cool. Rain is spread through the year. Humidity is usually low.
Best time to go
12 mo · Typical year
Temperature range
24°F to 93°F
Rain
7 days/mo
Sunshine
10.3 h/day
Humidity feel
Generally dry
When to visit
Month-by-month fit
Precipitation
One of the driest months, with very little rain.
6%wet-day frequency
AmountWet-day chance
Sunshine
Plenty of sun this month.
13.2 hAug sunshine
Heat & humidity by month
Very hot, mostly dry days.
Very dryAug heat feel
Air-feel chart data is unavailable for this destination. Use the selected-month dew point, temperature, rain, and sunshine context together rather than treating any one metric as total comfort.
More detailIncludes sky and daypart comfort
Cloud cover
Predominantly clear skies.
78%Aug clear sky
ClearCloud cover
Similar
Similar things to doDenverUnited StatesSimilar things to doMoabUnited StatesSimilar things to doLake TahoeUnited StatesSimilar things to doJackson HoleUnited States
Want a side-by-side climate view? Compare Boise with Denver.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 1, 2026
Data & methodology