National Weather Service Forecast for: Campbellsville KY
Issued by: National Weather Service Louisville, KY
Updated: 1:16 am EDT Jun 30, 2026
 
Overnight

Overnight: Mostly clear, with a low around 74. Light south wind.
Mostly Clear
Tuesday

Tuesday: Sunny, with a high near 93. Heat index values as high as 102. Calm wind becoming west around 6 mph in the afternoon.
Sunny
Tuesday
Night
Tuesday Night: Mostly clear, with a low around 73. Calm wind.
Mostly Clear
Wednesday

Wednesday: Sunny and hot, with a high near 95. Heat index values as high as 105. Calm wind.
Hot
Wednesday
Night
Wednesday Night: Mostly clear, with a low around 75. Calm wind.
Mostly Clear
Thursday

Thursday: Sunny and hot, with a high near 95.
Hot
Thursday
Night
Thursday Night: A 20 percent chance of showers and thunderstorms before 2am.  Mostly clear, with a low around 75.
Slight Chance
T-storms
Friday

Friday: A 30 percent chance of showers and thunderstorms, mainly after 2pm.  Sunny, with a high near 92.
Chance
T-storms
Friday
Night
Friday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm.  Mostly clear, with a low around 74.
Chance
T-storms
Lo 74 °F Hi 93 °F Lo 73 °F Hi 95 °F Lo 75 °F Hi 95 °F Lo 75 °F Hi 92 °F Lo 74 °F

Extreme Heat Warning
 

Overnight
 
Mostly clear, with a low around 74. Light south wind.
Tuesday
 
Sunny, with a high near 93. Heat index values as high as 102. Calm wind becoming west around 6 mph in the afternoon.
Tuesday Night
 
Mostly clear, with a low around 73. Calm wind.
Wednesday
 
Sunny and hot, with a high near 95. Heat index values as high as 105. Calm wind.
Wednesday Night
 
Mostly clear, with a low around 75. Calm wind.
Thursday
 
Sunny and hot, with a high near 95.
Thursday Night
 
A 20 percent chance of showers and thunderstorms before 2am. Mostly clear, with a low around 75.
Friday
 
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Sunny, with a high near 92.
Friday Night
 
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly clear, with a low around 74.
Independence Day
 
A 30 percent chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 90.
Saturday Night
 
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Sunday
 
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Sunday Night
 
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Monday
 
Showers and thunderstorms likely. Mostly sunny, with a high near 88. Chance of precipitation is 60%.

 

Forecast from NOAA-NWS for Campbellsville KY.