Boise Weather Forecast
Boise weather: 95°F, clear sky. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Boise weather in August
Weather map for Boise
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Climate in Boise month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 39° | 25° | 2,0 in | ★★☆☆☆ |
| February | 46° | 30° | 3,2 in | ★★☆☆☆ |
| March | 56° | 35° | 2,0 in | ★★★☆☆ |
| April | 62° | 39° | 2,0 in | ★★★★☆ |
| May | 73° | 48° | 0,9 in | ★★★★★ |
| June | 83° | 56° | 0,7 in | ★★★★★ |
| July | 95° | 66° | 0,2 in | ★★★★★ |
| August | 91° | 62° | 0,4 in | ★★★★★ |
| September | 82° | 56° | 0,4 in | ★★★★★ |
| October | 65° | 43° | 1,1 in | ★★★★☆ |
| November | 51° | 34° | 1,6 in | ★★★☆☆ |
| December | 44° | 30° | 3,0 in | ★★☆☆☆ |
Climate type: Continental. Source: Open-Meteo archive (ERA5).
Best time to visit Boise
Go in May, June, July, August and September. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: January, February and December - expect the least comfortable mix of heat, cold or rain.
What to pack, what to skip
- Lightweight, light-coloured clothing and a refillable water bottle
- Sunglasses, a brimmed hat and SPF 30+
- Avoid long hikes after mid-morning; start at dawn or leave it for a cooler day.
- If your dates are flexible, avoid January, February and December - historically the least comfortable months here.
How Boise compares with nearby places
Annual averages, and the difference against Boise.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Palouse Falls State Park | 233 mi | 56°F | +33°F warmer | 13 in |
| Smith Rock State Park | 251 mi | 51°F | 35°F cooler | 20 in |
| Great Salt Lake | 254 mi | 41°F | 46°F cooler | 11 in |
| Grand Teton | 270 mi | 18°F | 69°F cooler | 51 in |
| Antelope Island State Park | 270 mi | 53°F | 34°F cooler | 21 in |
See the Boise forecast by time range
Boise weather - more answers
Explore Boise
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
Frequently asked questions
Where is Boise?
Boise is a city in Idaho. Its coordinates are 43.615, -116.2023. It lies in North America.
What is the weather like in Boise right now?
It is currently 95°F (35°C) with clear sky. Humidity is 17% and wind is 6 mph.
When is the best time to visit Boise?
May, June, July, August and September offer the most comfortable conditions in Boise, which has a continental climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is Boise in?
Boise observes America/Boise (UTC-06:00). The local time is 7:06 AM.
How many people live in Boise?
Boise has a population of approximately 240.000.
What is the nearest airport to Boise?
The closest airports are Salt Lake City International Airport (SLC), 291 mi away.
What are the top things to do in Boise?
Popular options include Palouse Falls State Park.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (cities-us) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 23, 2026 at 7:06 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
