Louisville · July
Run in the pre-dawn.
Average high is 87°F with a 70°F overnight low. Humidity averages 75% — the limiting factor on most runs. Expect 17 rain days — plan around the radar. Humid heat punishes mid-morning — get out before sunrise for the only truly comfortable window.
Avg high / low
87° / 70°F
Humidity
75%
Rain days
17/mo
Wind
8 mph
What July feels like in Louisville
Sunrise
06:33
Mid-month average
Sunset
21:04
Mid-month average
Time-of-day breakdown
Morning
Coolest, driest air of the day. The window before sunrise is the most reliable comfortable hour.
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 Louisville in July
The kit for July in Louisville: light, breathable, and moisture-wicking — singlet or short-sleeve only, a water-resistant cap or jacket on standby.
July vs the surrounding months
vs June
+3° avg high
+3 rain days
Louisville in June →
July
87°F avg high
17 rain days
Best: pre-dawn
vs August
+2° avg high
+3 rain days
Louisville in August →
Frequently Asked Questions
What is the best time of day to run in Louisville in July?+
Pre-dawn. Humid heat punishes mid-morning — get out before sunrise for the only truly comfortable window.
What's the average temperature in Louisville in July?+
Average high 87°F, average low 70°F.
How does July compare to surrounding months in Louisville?+
Compared to June (avg high 84°F), July is warmer. Compared to August (avg high 85°F), July is warmer.
Does it rain often in Louisville in July?+
Expect about 17 measurable rain days in July, on average.