Boise Weather Forecast
Boise weather: 78°F, mainly clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Will it rain in Boise?
No - rain is unlikely in Boise today.
Rain is very unlikely today - plans do not need a backup.
Over the next 7 days, about 0,0 in of precipitation is forecast.
The next 7 days look unusually dry - roughly 40% of a normal August week (0,0 in against 0,1 in).
16-day forecast for Boise
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Fri, Aug 21 | ☁️ Overcast | 105° / 65° | 5% | 9 mph | 7 |
| Sat, Aug 22 | 🌧️ Heavy drizzle | 98° / 82° | 17% · 0,0 in | 16 mph | 6 |
| Sun, Aug 23 | ☁️ Overcast | 94° / 74° | 17% | 15 mph | 7 |
| Mon, Aug 24 | ☁️ Overcast | 93° / 70° | 6% | 6 mph | 6 |
| Tue, Aug 25 | ☁️ Overcast | 99° / 75° | 6% | 6 mph | 7 |
| Wed, Aug 26 | ☁️ Overcast | 98° / 80° | 2% | 15 mph | 6 |
| Thu, Aug 27 | ☁️ Overcast | 89° / 66° | 0% | 10 mph | 7 |
| Fri, Aug 28 | ☀️ Clear sky | 88° / 65° | 2% | 9 mph | 7 |
| Sat, Aug 29 | ⛅ Partly cloudy | 92° / 69° | 2% | 8 mph | 7 |
| Sun, Aug 30 | ☁️ Overcast | 91° / 71° | 4% | 8 mph | 7 |
| Mon, Aug 31 | ☁️ Overcast | 80° / 64° | 4% | 13 mph | 7 |
| Tue, Sep 1 | ☀️ Clear sky | 91° / 64° | 3% | 10 mph | 7 |
| Wed, Sep 2 | ☀️ Clear sky | 85° / 64° | 6% | 9 mph | 7 |
| Thu, Sep 3 | ☁️ Overcast | 83° / 60° | 5% | 10 mph | 7 |
| Fri, Sep 4 | ☁️ Overcast | 82° / 67° | 6% | 9 mph | 4 |
| Sat, Sep 5 | ☀️ Clear sky | -- / -- | 3% | -- | — |
What this means for Boise
Today is much warmer than average for August. The forecast high of 105°F is 14.4°F above the 91°F typical for this month.
Rain is very unlikely today - plans do not need a backup.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 82°F.
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.
See the Boise forecast by time range
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Explore Boise
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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 78°F (25°C) with mainly clear. Humidity is 22% and wind is 1 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 3:05 PM.
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 22, 2026 at 3:05 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
