Louisville, Ky. – Drivers across eastern Kentucky woke up to dense valley fog Monday morning, while residents farther west braced for dangerous heat indices topping 100 degrees.
According to the National Weather Service offices in Jackson and Louisville, fog reduced visibility to less than a quarter mile in valleys stretching from Somerset and London through Hazard and Pikeville. The fog expanded before dawn and is expected to linger through the morning commute, especially along U.S. 27, I-75, and rural roadways. Motorists are urged to slow down, use low beam headlights, and allow extra time for travel until conditions improve by late morning.
Meanwhile, central and western Kentucky face a different hazard. Afternoon highs in Louisville, Elizabethtown, and Bowling Green will climb into the low to mid-90s Monday, combining with high humidity to produce heat indices of 100 to 105. The heat will return again Tuesday, posing risks for outdoor workers, athletes, and anyone without adequate cooling. Officials recommend frequent breaks, hydration, and checking on vulnerable neighbors.
The fog threat in the east should ease by midday, while the heat wave continues west of I-75 into Tuesday evening. More advisories may be issued if humidity persists midweek.




