Boise Weather in July
July in Boise brings very high temperatures, with daytime highs of 34°C (93°F) and nights around 15°C (59°F). Only 8.4 mm (0.3 in) of rainfall is typical, making it a largely dry month.
Rainfall in Boise in July
Historically, the month has about 4 days of rain, averaging 8.4 mm (0.3 in) in total. When rain does fall, showers tend to be light and brief. Most days will be dry.
Temperature in Boise in July
July in Boise brings very high temperatures, with highs of 34°C (93°F) and nights around 15°C (59°F). Indoor breaks or shaded spots can make the warmer part of the day much more comfortable. With overnight lows of 15°C (59°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.While these temperatures are typical, some days might be even hotter. Always be prepared for the unexpected spikes in warmth. Dressing in lightweight and breathable outfits will help you stay cool. Don't forget to stay hydrated and wear sun protection to handle the heat better.
Sunshine in Boise in July
The city usually sees around 399 hours of sunlight, indicating many sunny days — a great month for sightseeing.July in Boise can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Boise's climate page.
Boise Temperature in July
Min Temperature
15°C (59°F)
Max Temperature
34°C (93°F)
Chance of Rain
12%
Precipitation
8.4 mm (0.3 in)
Rainy days
4 days
Humidity
36%
Sunshine
399 hours
Percentage Sunshine
86%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Boise typically rise from around 31°C (88°F) at the start of July to approximately 34°C (93°F) by the end. Nights are pleasant, with lows typically ranging from 15°C (59°F) to 18°C (64°F).
Average temperatures in July
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in July
Historical weather for Boise in July
Browse day-by-day weather records for Boise spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Boise historical weather extremes in July
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Boise.
- The hottest July day on record in Boise reached 43°C (109°F) (July 13, 2002).
- The lowest overnight temperature recorded in July was 2°C (36°F) (July 5, 1986).
Best Places in the United States of America in July
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in July →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Boise in July
Pack for serious heat in Boise in July. Prioritize clothing that breathes and doesn't cling or stick. Lightweight cotton, linen, and moisture-wicking fabrics are ideal. A wide hat provides welcome shade. Dry conditions mean you won't need to worry about rain protection. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Boise in July
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Boise's climate page.
Temperature Rainfall Sunshine Humidity
See the full Boise climate overview or explore weather in the United States of America.
