Summer temperatures · Kentucky
How hot does Louisville get in summer?
In a typical summer, June to August, Louisville averages highs around 88°F and lows around 69°F.
About 43 days a year reach 90°F or hotter, and about one reaches 100°F. About 129 days a year get to 80°F or warmer. That makes it the 40th hottest summer of the 129 US cities we track.
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The hottest high in the forecast for the next 48 hours is about 49°F.
Louisville averages about 43 days a year at 90°F or hotter, which turns every summer day out into a contest over who brought the biggest hat.
Live 48-hour forecast from OpenWeatherMap, refreshed about every half hour. Alerts from the National Weather Service.
Summer at a glance
| Average summer high | 88°F |
|---|---|
| Average summer low | 69°F |
| Days a year at 80°F or warmer | 129 |
| Days a year at 90°F or hotter | 43 |
| Days a year at 100°F or hotter | 1 |
| Average winter high, for comparison | 46°F |
Summer here is June to August. Counts are averages a year.
Cities with about the same summer
- Charlotte, North Carolina: highs around 89°F, lows around 68°F
- St. Louis, Missouri: highs around 88°F, lows around 69°F
- Raleigh, North Carolina: highs around 89°F, lows around 68°F
More about the weather here
Source: NOAA U.S. Climate Normals, 1991 to 2020, station USW00093821.