Boise · July
Run in the morning.
Average high is 94°F with a 66°F overnight low. Dry air (28% humidity) makes the heat more bearable than the numbers suggest. Dry month — only 2 measurable rain days on average. Dry heat climbs fast after sunrise — get out in the cooler morning hours.
Avg high / low
94° / 66°F
Humidity
28%
Rain days
2/mo
Wind
11 mph
What July feels like in Boise
Sunrise
06:19
Mid-month average
Sunset
21:21
Mid-month average
Time-of-day breakdown
Morning
Cool relative to the day's peak, but heat builds fast. By 10 AM you're already chasing comfort.
Midday
Heat peaks here. Skip unless you've got shade and pace tolerance.
Evening
Cools off after sunset but still warm. Good for easy efforts; avoid hard intervals if you're chasing pace.
What to wear running in Boise in July
The kit for July in Boise: light, breathable, and moisture-wicking — singlet or short-sleeve only.
July vs the surrounding months
vs June
+11° avg high
-4 rain days
Boise in June →
July
94°F avg high
2 rain days
Best: morning
vs August
+3° avg high
-1 rain days
Boise in August →
Frequently Asked Questions
What is the best time of day to run in Boise in July?+
Morning. Dry heat climbs fast after sunrise — get out in the cooler morning hours.
What's the average temperature in Boise in July?+
Average high 94°F, average low 66°F.
How does July compare to surrounding months in Boise?+
Compared to June (avg high 82°F), July is warmer. Compared to August (avg high 91°F), July is warmer.
Does it rain often in Boise in July?+
Expect about 2 measurable rain days in July, on average.