Louisville, Kentucky Weather
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Climate of Louisville: monthly averages
Based on 25 years of satellite and reanalysis data (2001-2025), August is usually the hottest month in Louisville, with average daytime highs around 30°C. January is the coolest, when nights typically fall to about -5°C and frost is possible on the coldest nights. That is a wide yearly range of roughly 35°C, so the seasons feel very different from each other.
The area receives about 1270 mm of rain in a typical year. Most of it falls from March to July, October and December (around 65% of the yearly total), and May is the wettest month at roughly 135 mm.
For outdoor plans and travel, August to September usually offer the most comfortable weather in Louisville, with mild days and relatively little rain.
| Month | Avg high | Avg low | Rainfall | Humidity |
|---|---|---|---|---|
| Jan | 4° | -5° | 84 mm | 85% |
| Feb | 6° | -4° | 87 mm | 85% |
| Mar | 12° | 1° | 113 mm | 82% |
| Apr | 19° | 7° | 131 mm | 79% |
| May | 23° | 13° | 135 mm | 81% |
| Jun | 28° | 18° | 114 mm | 79% |
| Jul | 30° | 20° | 117 mm | 77% |
| Aug | 30° | 19° | 85 mm | 71% |
| Sep | 27° | 15° | 93 mm | 69% |
| Oct | 20° | 8° | 108 mm | 73% |
| Nov | 12° | 1° | 96 mm | 79% |
| Dec | 6° | -3° | 108 mm | 86% |
Source: NASA POWER (MERRA-2 reanalysis), averaged over the roughly 50 km grid area around Louisville. Values describe typical conditions, not a forecast.
About Louisville weather
Louisville lies in Kentucky's humid subtropical-to-continental climate — about 112 km west of Lexington. Expect warm, humid summers (June–August). Winter brings mild-to-cool winters (December–February) with occasional snow. This page shows live, auto-refreshing weather for Louisville: current conditions, an hourly breakdown, a 16-day outlook, a date-lookup tool for any past or future date, and real-time air quality, sourced from Open-Meteo. Local timezone: America/Kentucky/Louisville.
Frequently asked questions
Louisville is about 112 km west of Lexington, in Kentucky.
Louisville sees mild-to-cool winters (December–February) with occasional snow.
The live current conditions, hourly forecast and 16-day outlook above are pulled in real time for Louisville's exact coordinates. No fixed schedule, the page updates whenever you load it.
August is usually the hottest month in Louisville, with average daytime highs of about 30°C and nights around 19°C.
The coldest nights come in January, when the average low is about -5°C and daytime highs reach around 4°C. Frost is possible on clear, calm nights.
Louisville receives about 1270 mm of rain in a typical year. May is the wettest month at roughly 135 mm, and the main rainy period is March to July, October and December.
August to September usually offer the most comfortable weather in Louisville, with mild daytime temperatures and little rain.
In November Louisville typically sees daytime highs near 12°C and lows near 1°C, with about 96 mm of rain over the month and average humidity around 79%. Check the live forecast above for this week's actual conditions.
Up to 16 days ahead using the extended forecast and date picker above; further-out or historical dates use the same date lookup tool.
The current temperature for Louisville updates automatically at the top of this page — scroll to the hourly strip below to see how it's expected to change over the day.
Louisville's day-to-day weather follows the broader pattern of Kentucky described above. See the hourly weather forecast or the air quality index for more detail.