Boise Weather Forecast
Boise weather: 78°F, mainly clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Summary
Boise is a city in Idaho. Boise is known for Greenbelt and outdoor access. It has a population of about 240.000.
Right now it is 78°F (25°C) in Boise with mainly clear. It feels like 74°F. Today runs from 65°F to 105°F. Chance of precipitation is 5%. Sightseeing conditions score 9.8/10 - excellent - go now.
The best time to visit Boise is May, June, July, August and September. The climate is continental. January, February and December tend to be the least comfortable months. July is the warmest month with average highs near 95°F, while January is the coldest with lows near 25°F.
The closest major airport is Salt Lake City International Airport (SLC), about 291 mi away. Nearby highlights include Palouse Falls State Park.
In plain terms. 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. The best window to be outside is roughly 7 AM to 10 AM, when temperature, rain chance and wind line up best. sightseeing is the strongest bet in Boise today at 9.8/10. No weather-related travel disruption is expected today. Roads and airports should run normally.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Active alerts for Boise
Derived from the forecast. No official alert feed is wired for this country yet.
Weather in Boise right now
Source: Open-Meteo. Updated 3:45 PM, Aug 22 local time.
See the Boise forecast by time range
Next 24 hours
Hour-by-hour temperature, precipitation chance and wind.
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% | -- | — |
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).
Weather map for Boise
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Air quality and pollen in Boise
Air quality: Open-Meteo (CAMS). US AQI scale.
Sun, twilight and moon
Golden and blue hour are the standard photographic approximation around sunrise and sunset.
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.
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 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 3:45 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 3:45 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
