Weather Tomorrow for ZIP 40203
Louisville, KY · View full Louisville forecast
Heat AdvisoryUntil Sep 16, 10:15 AM
Heat Advisory issued September 15 at 1:48PM EDT until September 17 at 8:00PM EDT by NWS Louisville KY
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
Wednesday, September 16, 2026
Precip chance
5%
Wind
2-6 mph
Humidity
65%
Feels like
95–78°F
Data source: National Weather Service (NOAA) · Updated just now
Tomorrow by Hour
| Time | Temp | Condition | Rain % | Wind | ||
|---|---|---|---|---|---|---|
| 4 AM☽ | 81°F | Mostly Clear | 3% | 5 mph S | ||
| 5 AM☽ | 80°F | Mostly Clear | 3% | 3 mph S | ||
| 6 AM☽ | 79°F | Mostly Clear | 2% | 3 mph S | ||
| 7 AM☽ | 79°F | Mostly Clear | 2% | 3 mph S | ||
| 8 AM☽ | 78°F | Mostly Clear | 2% | 3 mph S | ||
| 9 AM☽ | 77°F | Partly Cloudy | 2% | 3 mph S | ||
| 10 AM | 77°F | Mostly Sunny | 3% | 3 mph S | ||
| 11 AM | 76°F | Sunny | 3% | 3 mph S | ||
| 12 PM | 76°F | Mostly Sunny | 3% | 5 mph S | ||
| 1 PM | 78°F | Mostly Sunny | 3% | 5 mph S | ||
| 2 PM | 82°F | Sunny | 3% | 6 mph SW | ||
| 3 PM | 86°F | Sunny | 2% | 6 mph SW | ||
| 4 PM | 90°F | Sunny | 2% | 6 mph SW | ||
| 5 PM | 94°F | Mostly Sunny | 2% | 6 mph SW | ||
| 6 PM | 95°F | Mostly Sunny | 4% | 5 mph SW | ||
| 7 PM | 96°F | Mostly Sunny | 4% | 5 mph SW | ||
| 8 PM | 97°F | Mostly Sunny | 5% | 5 mph SW | ||
| 9 PM | 96°F | Sunny | 5% | 5 mph SW | ||
| 10 PM☽ | 95°F | Mostly Clear | 5% | 5 mph SW | ||
| 11 PM☽ | 93°F | Partly Cloudy | 5% | 3 mph SW | ||
| 12 AM☽ | 87°F | Mostly Cloudy | 3% | 3 mph SW | ||
| 1 AM☽ | 85°F | Partly Cloudy | 2% | 2 mph SW | ||
| 2 AM☽ | 82°F | Partly Cloudy | 0% | 2 mph S | ||
| 3 AM☽ | 81°F | Partly Cloudy | 0% | 2 mph S | ||
Precipitation Timeline
What to Wear Tomorrow
Extreme heat — stay cool and protected
Clothing
- • Lightest possible clothing
- • Wide-brim hat
- • UV-protective shirt if outdoors
Footwear
Breathable sandals
Accessories
- • Sunglasses
- • Sunscreen
Conditions
High: 97°F
Low: 76°F
Wind: 2-6 mph
Rain: 5%
Enjoy your day!
Best Time to Be Outside Tomorrow
Excellent conditions for outdoor activities (dry, comfortable temp, light wind, daylight)