National Weather Service Forecast for: Oak Grove LA
Issued by: National Weather Service Jackson, MS
Updated: 11:15 am CDT Sep 21, 2026
 
This
Afternoon
This Afternoon: A 30 percent chance of showers and thunderstorms, mainly between 3pm and 5pm. Partly sunny and hot, with a high near 97. Heat index values as high as 101. Calm wind.
Chance
T-storms
 Tonight

Tonight: A 20 percent chance of showers and thunderstorms before 9pm. Patchy fog after 5am. Otherwise, partly cloudy, with a low around 71. Calm wind.
Slight Chance
T-storms then
Patchy Fog
 Tuesday

Tuesday: Patchy fog before 7am. Otherwise, sunny, with a high near 96. Heat index values as high as 103. Calm wind becoming north around 5 mph in the afternoon.
Patchy Fog
then Sunny
 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 70. North northeast wind around 5 mph.
Mostly Clear

 Wednesday

Wednesday: Sunny, with a high near 92. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Sunny

 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 66. North northeast wind around 5 mph.
Mostly Clear

 Thursday

Thursday: Sunny, with a high near 90. North northeast wind around 5 mph.
Sunny

 Thursday
Night
Thursday Night: Partly cloudy, with a low around 64. North northeast wind around 5 mph becoming calm in the evening.
Partly Cloudy

 Friday

Friday: Mostly sunny, with a high near 89. North northeast wind around 5 mph.
Mostly Sunny
Hi 97 °F Lo 71 °F Hi 96 °F Lo 70 °F Hi 92 °F Lo 66 °F Hi 90 °F Lo 64 °F Hi 89 °F

 

This Afternoon
 
 A 30 percent chance of showers and thunderstorms, mainly between 3pm and 5pm. Partly sunny and hot, with a high near 97. Heat index values as high as 101. Calm wind.
Tonight
 
 A 20 percent chance of showers and thunderstorms before 9pm. Patchy fog after 5am. Otherwise, partly cloudy, with a low around 71. Calm wind.
Tuesday
 
 Patchy fog before 7am. Otherwise, sunny, with a high near 96. Heat index values as high as 103. Calm wind becoming north around 5 mph in the afternoon.
Tuesday Night
 
 Mostly clear, with a low around 70. North northeast wind around 5 mph.
Wednesday
 
 Sunny, with a high near 92. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
 
 Mostly clear, with a low around 66. North northeast wind around 5 mph.
Thursday
 
 Sunny, with a high near 90. North northeast wind around 5 mph.
Thursday Night
 
 Partly cloudy, with a low around 64. North northeast wind around 5 mph becoming calm in the evening.
Friday
 
 Mostly sunny, with a high near 89. North northeast wind around 5 mph.
Friday Night
 
 Partly cloudy, with a low around 64.
Saturday
 
 Mostly sunny, with a high near 91.
Saturday Night
 
 Partly cloudy, with a low around 64.
Sunday
 
 Mostly sunny, with a high near 91.

 

Forecast from NOAA-NWS for Oak Grove LA.