National Weather Service Forecast for: Lockport LA
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Updated: 12:40 pm CDT Jul 20, 2025
 
This
Afternoon
This Afternoon: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92. Heat index values as high as 106. South wind around 5 mph.
Slight Chance
T-storms

 Tonight

Tonight: Mostly clear, with a low around 77. South wind around 5 mph becoming calm in the evening.
Mostly Clear

 Monday

Monday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. Heat index values as high as 106. Calm wind becoming southwest around 5 mph in the afternoon.
Sunny then
Slight Chance
T-storms
 Monday
Night
Monday Night: Mostly clear, with a low around 76. Southwest wind around 5 mph becoming calm in the evening.
Mostly Clear

 Tuesday

Tuesday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 93. Calm wind becoming west around 5 mph in the afternoon.
Sunny then
Slight Chance
T-storms
 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 77. Southwest wind around 5 mph becoming calm in the evening.
Mostly Clear

 Wednesday

Wednesday: Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 92. Northwest wind around 5 mph. Chance of precipitation is 60%.
Chance
T-storms then
T-storms
Likely
 Wednesday
Night
Wednesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 76. North wind around 5 mph becoming calm. Chance of precipitation is 60%.
Chance
T-storms then
Showers
Likely
 Thursday

Thursday: Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms after 1pm. Mostly cloudy, with a high near 87. North wind around 5 mph becoming east in the afternoon.
T-storms
Hi 92 °F Lo 77 °F Hi 91 °F Lo 76 °F Hi 93 °F Lo 77 °F Hi 92 °F Lo 76 °F Hi 87 °F

Heat Advisory
Heat Advisory
 

This Afternoon
 
 A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92. Heat index values as high as 106. South wind around 5 mph.
Tonight
 
 Mostly clear, with a low around 77. South wind around 5 mph becoming calm in the evening.
Monday
 
 A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. Heat index values as high as 106. Calm wind becoming southwest around 5 mph in the afternoon.
Monday Night
 
 Mostly clear, with a low around 76. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
 
 A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 93. Calm wind becoming west around 5 mph in the afternoon.
Tuesday Night
 
 Mostly clear, with a low around 77. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
 
 Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 92. Northwest wind around 5 mph. Chance of precipitation is 60%.
Wednesday Night
 
 A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 76. North wind around 5 mph becoming calm. Chance of precipitation is 60%.
Thursday
 
 Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms after 1pm. Mostly cloudy, with a high near 87. North wind around 5 mph becoming east in the afternoon.
Thursday Night
 
 A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 77. Southeast wind around 5 mph becoming calm in the evening.
Friday
 
 Showers and thunderstorms. Partly sunny, with a high near 86. Southeast wind 5 to 10 mph becoming south in the afternoon.
Friday Night
 
 A chance of showers and thunderstorms. Partly cloudy, with a low around 76. South wind around 5 mph.
Saturday
 
 Showers and thunderstorms. Partly sunny, with a high near 88. Calm wind becoming south around 5 mph in the morning.

 

Forecast from NOAA-NWS for Lockport LA.