Boise i
City · Idaho

Boise

Ada County · United States

Now
20°
Local time
02:55 PM
Population
235.7K
GeoNames
Elevation
823 m
Best time to go
Jun, Sep
Go score 98/100
Main airport
BOI
6 km
Time zone
UTC-6
America/Boise
At a glance

Boise is the capital and most populous city in the U.S. state of Idaho. It is the county seat of Ada County. The population of the city was 235,685 at the 2020 census. The Boise metropolitan area, located in the Treasure Valley, includes five counties of Idaho with an estimated population of 846,000, the most populous metropolitan area in Idaho and 95th-most populous in the United States.

Read more — Wikipedia

The best months to visit are June and September.

July is the hottest month, with highs around 32°C (90°F).

January is the coldest month, with lows around -5°C (22°F).

The wettest month is January, with rain on about 11 days.

July is the sunniest month, with about 13 hours of sunshine a day.

in October, it is warmer than 47% of places in United States.

Weather

16-day forecast

Boise weather forecast
20°
Clear sky
Feels like
18°
Humidity
30%
Wind
4 km/h S
Gusts
8 km/h
Cloud cover
0%
Pressure
1030 hPa
UV index
5
Sunrise / Sunset
07:59 / 19:01

Next 48 hours

19° 14 21° 17 16° 20 14° 23 12° 02 9° 05 6° 08 13° 11 23° 14 25° 17 18° 20 16° 23 14° 02 12° 05 11° 08 21° 11
Today
Oct 15
Clear sky
21°4°
0% 16 SE
Tomorrow
Oct 16
Overcast
26°6°
0% 21 SE
Sat
Oct 17
Overcast
25°11°
0% 21 SE
Sun
Oct 18
Overcast
21°11°
0% 10 W
Mon
Oct 19
Overcast
26°14°
1% 26 SE
Tue
Oct 20
Light drizzle
22°15°
28% 0.3 mm 18 W
Wed
Oct 21
Rain showers
17°12°
31% 15 mm 13 SW
Thu
Oct 22
Light drizzle
14°10°
31% 0.3 mm 16 NW
Fri
Oct 23
Light drizzle
13°7°
21% 0.3 mm 21 NW
Sat
Oct 24
Clear sky
12°4°
10% 26 NW
Sun
Oct 25
Clear sky
11°4°
7% 14 NW
Mon
Oct 26
Fog
13°6°
7% 10 NW
Tue
Oct 27
Fog
16°10°
6% 14 SE
Wed
Oct 28
Fog
17°11°
10% 13 NE
Thu
Oct 29
Overcast
16°8°
16% 7 SE
Fri
Oct 30
Overcast
17°9°
27% 7 E
European AQI27Fair
PM2.51.8
PM102.1
NO₂1.9
O₃74
Pollen

Pollen forecasts are only available in Europe.

Climate

Best time to visit Boise

Average conditions per month from long-term climate normals (WorldClim 1970–2000, CRU 1961–1990, NOAA OISST 1991–2020).

Best time to goJune and September
-10°1°13°24°35° 02550 mm Jan · 43 mmFeb · 32 mmMar · 37 mmApr · 32 mmMay · 31 mmJun · 22 mmJul · 9 mmAug · 9 mmSep · 20 mmOct · 21 mmNov · 41 mmDec · 41 mm 4°7°12°17°22°27°32°32°26°19°10°4° -5°-3°0°3°7°11°14°14°9°4°-1°-5° JanFebMarAprMayJunJulAugSepOctNovDec
Average high Average low Rainfall (mm) Best time to go

Month by month

JanFebMarAprMayJunJulAugSepOctNovDec
Average high4°7°12°17°22°27°32°32°26°19°10°4°
Average low-5°-3°0°3°7°11°14°14°9°4°-1°-5°
Rainfall (mm)4332373231229920214141
Rain days118987622451010
Sunshine per day (h)3.55.37.69.310.811.71311.6107.63.93.4
Daylight (h)9.310.411.813.414.715.415.11412.410.99.68.9
Humidity (%)757060524945363745546975
Wind (km/h)131416171615141414131413
Go score142645689293696898823015

The go score (0–100) rewards daytime highs of 22–27 °C, mild nights, sunshine and few rainy days.

Tourist density

Boise: tourist crowds by month

How busy it gets through the year — and the months with good weather and fewer visitors.

Tourist density
Very high
#64 in United States
Busiest months
September
Quietest months
November–February
Sweet spot
May
Good weather, fewer crowds
Very quietQuietModerateBusyVery busy ★ Sweet spot

When people plan their trip

Monthly readership of the travel guide — people read up a few weeks before they travel.

Monthly level: estimate from travel-guide readership and climate. Wikivoyage (Wikimedia Pageviews).

Wikivoyage

Boise travel guide

What to see, do, eat and where to stay — from the Wikivoyage community.

Boise City, Oklahoma Boise is the capital and largest city of Idaho. Boise offers numerous recreational opportunities, including extensive hiking and biking in the foothills to the immediate north of downtown. Boise is a regional hub for jazz, theater, and indie music, and is home to several museums.

Although its economic growth has its roots in agriculture, the city is now home to many high-tech firms, including Micron Technology. Related to Idaho's agricultural history, notable food-related firms such as Albertson's, WinCo Foods and the J.R. Simplot Company are headquartered in this city. Although the origin of the name is disputed, "Boise" is thought to be derived from the French les bois, or "the woods." The name is a reference to the tree-lined Boise River, which passes through the heart of the city. To this day the city takes its "City of Trees" moniker very seriously, although before white settlement, there were actually very few trees in the area. Boise began its life in the mid-1800s as Fort Boise, a U.S. Army installation located at a strategic junction on the Oregon Trail between what were then the major settlements in southern Idaho Territory, the mining camps of Silver City to the south and Idaho City to the northeast. A city grew quickly around the fort, and by 1865 became the capital of Idaho Territory (much to the chagrin of northern Idahoans, namely residents of the original capital of Lewiston). By the dawn of the 20th century, Boise was far and away the dominant city in the region, having long eclipsed the likes of Silver City and Idaho City. Today Boise is sometimes seen as the eastern edge of the Pacific Northwest, or the western edge of the Rocky Mountains, or both, depending on whom you ask.

Text from Wikivoyage, CC BY-SA 4.0. Edit or improve it on Wikivoyage. · DE, EN, ES, IT, NL, PL

Wikidata

Landmarks nearby

Mountains, castles, museums, beaches and heritage sites within 25 km — from Wikidata.

Things to do in Boise
Practical

Boise: practical information

Plugs, money, emergency numbers, safety and typical prices — everything to know before you go.

Power plugs
AB
Voltage
120 V · 60 Hz
Driving
Drive on the right
Currency

US Dollar

USD · $

Languages
English
Calling code
+1
Emergency numbers
Safety & travel advice
No travel warningsUK Foreign Office · Aug 18, 2026
Read the full advice
Typical prices
  • Meal, casual restaurant$22.00
  • Cappuccino$5.00
  • Beer (0.5 l)$7.50
  • Bottled water (1.5 l)$2.20
  • Taxi, 5 km$16.00
  • Public transport ticket$2.90
  • Mid-range hotel, per night$165

Estimated from United States’s consumer price level (World Bank) — real prices vary by place and season. Prices are about 100% of US levels.

Upcoming public holidays
  • Nov 11Veterans Day
  • Nov 26Thanksgiving Day
  • Dec 25Christmas Day
  • Jan 1New Year's Day
  • Jan 18Martin Luther King, Jr. Day
Sun & daylight
Sunrise
07:59
Sunset
19:01
Daylight today
10.9 h
Local time in Boise
Earthquake history

No earthquakes of magnitude 5 or more within 100 km since 1975.

USGS

Map

How to get to Boise

Nearest airports

Distances

estimate

Hotels

Hotels in Boise

Hotels and holiday rentals with live nightly prices.

Hotels in Boise
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GBIF

Wildlife around here

The most-recorded species within 25 km (GBIF), with their seasonality.

FAQ

Frequently asked questions

When is the best time to visit Boise?

Based on climate normals, the best time to visit Boise is June and September.

What is the weather like in Boise in October?

In October, Boise averages a high of 19°C (66°F) and a low of 4°C (38°F), with 21 mm of rain on about 5 days.

What is the rainiest month in Boise?

January, with rain on about 11 days.

What is the nearest airport to Boise?

Boise Air Terminal/Gowen Field (BOI), about 6 km away.

What power plugs are used in United States?

Plug types A, B, 120 V.

What currency is used in United States?

US Dollar (USD).

What is the emergency number in United States?

911.

When is Boise most crowded?

The busiest months are September.

When is Boise least crowded?

The quietest months are November–February.

When is the best time to visit Boise without the crowds?

May: good weather with fewer visitors than in peak season.

What time zone is Boise in?

America/Boise (UTC-6).

What is the population of Boise?

About 235,684.