Boise in October
In October, Boise averages 19°C (66°F) during the day and 7°C (44°F) at night, with around 5 days of rain (26 mm total).
ShoulderConditions are comfortable for sightseeing without being sweltering. Occasional showers are likely but won't dominate.
It's peak hurricane season in Boise during October. Travel is possible but expect storm risk, possible flight disruption, and generally lower travel insurance coverage.
How October compares to the rest of the year in Boise
October is in the middle of the year for warmth in Boise (6th of 12) and moderately rainy compared to the rest of the year (8th of 12). Daytime temperature matches the city's annual average. October runs 9°C cooler than September (28°C) and cools 9°C in November (10°C).
October sunrise & sunset in Boise
Times shown for Boise local time (America/Boise), calculated for the 15th of October. They shift by a few minutes day to day across the month.
Photography light in Boise — October
Golden-hour and blue-hour windows for the 15th of October, in Boise's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Boise in October
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on October's tier (Shoulder) and Boise's popularity.
Crowds & pricing — October in Boise
Boise is in a shoulder season month — fewer crowds, slightly lower prices, and a calmer atmosphere than peak weeks. Most major sights stay open with normal hours, though a handful of seasonal restaurants or boat trips may run reduced schedules. Many regulars consider these months the best time to visit because you trade a small amount of weather reliability for a much more pleasant on-the-ground experience.
Why this tier: excellent tourism weather peak hazard season (1 active)
Sun & mosquito risk — October in Boise
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Boise in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 4°C / 40°F | -4°C / 26°F | 43 mm | 10 | — |
| February | 8°C / 46°F | -2°C / 29°F | 38 mm | 9 | — |
| March | 13°C / 56°F | 2°C / 35°F | 39 mm | 9 | — |
| April | 18°C / 64°F | 4°C / 40°F | 31 mm | 7 | — |
| May | 23°C / 74°F | 9°C / 48°F | 39 mm | 8 | — |
| June | 29°C / 84°F | 14°C / 57°F | 22 mm | 3 | — |
| July | 35°C / 95°F | 19°C / 65°F | 2 mm | 1 | — |
| August | 34°C / 92°F | 18°C / 64°F | 5 mm | 1 | — |
| September | 28°C / 82°F | 13°C / 55°F | 15 mm | 3 | — |
| October | 19°C / 66°F | 7°C / 44°F | 26 mm | 5 | — |
| November | 10°C / 50°F | 0°C / 33°F | 37 mm | 8 | — |
| December | 4°C / 39°F | -3°C / 26°F | 55 mm | 12 | — |
Other cities with similar October weather
🌍 See the full ranked list of climate twins for Boise in October →
Frequently asked questions
How hot is Boise in October?
In October, Boise averages a high of 19°C (66°F) and a low of 7°C (44°F) — generally mild and pleasant.
Does it rain a lot in Boise in October?
October sees occasional rain in Boise, with about 5 rainy days on average.
Is October a good time to visit Boise?
October is mild and pleasant and mostly dry. It suits travelers who are comfortable with mild and pleasant weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Boise in October?
Pack light layers for warm days and cooler evenings. See the full October packing list for Boise for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.