Louisville, KY Weather

89°F

Mostly Clear

Data: NOAA/National Weather Service. Forecast updated Aug 30, 2026, 7:51 PM UTC. Discussion issued Aug 30, 2026, 5:33 PM UTC.

Air Quality Index: 55 (Moderate)

Local discussion

  • Heat and humidity will increase, with a chance of a Heat Advisory by mid-week.
  • Prolonged hot temperatures may lead to heat-related illnesses, especially for those without cooling or hydration.
  • There may be some chances for showers and storms late in the week, but confidence is low.

Hazards

  • Heat: Heat index values may exceed 100 degrees, leading to potential heat-related health risks. (Tuesday through Thursday; Ohio Valley region)

Louisville, KY Climate Overview

Louisville, KY, is classified as having a humid subtropical climate, characterized by hot summers, mild to cool winters, and ample precipitation throughout the year. The city's climate is influenced by its location in the Ohio River Valley, which contributes to its relatively moderate temperatures compared to more northern areas.

In summer, temperatures in Louisville typically range from highs in the upper 80s to low 90s Fahrenheit, with lows in the mid-60s to low 70s. Winter temperatures usually see highs in the low 40s to upper 30s, while lows can dip into the mid-20s. Spring and fall are transitional seasons with mild and pleasant temperatures, offering highs in the 60s and 70s.

Louisville receives an average annual rainfall of about 45 inches, with May being the wettest month. The city experiences relatively consistent precipitation throughout the year, but the summer months can see increased rainfall due to thunderstorms. Snowfall is moderate, averaging around 12 inches annually, with January and February being the snowiest months.

The area is occasionally affected by severe weather phenomena, including thunderstorms and tornadoes, due to its location on the periphery of Tornado Alley. Ice storms can occur in winter months, disrupting normal activities and impacting local infrastructure.

Louisville's geographic position along the Ohio River at an elevation of approximately 466 feet above sea level influences its climate, contributing to its humidity and precipitation patterns. The surrounding terrain, which includes rolling hills and river valleys, also plays a role in shaping local weather conditions.