National Weather Service Forecast for: Jacksonville AR
Issued by: National Weather Service Little Rock, AR
Updated: 2:35 am CDT Aug 20, 2026
 
Overnight

Overnight: Mostly cloudy, with a low around 79. Southwest wind around 10 mph.
Mostly Cloudy

 Thursday

Thursday: A 30 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 100. Heat index values as high as 108. South southwest wind around 5 mph becoming north northwest in the afternoon.
Mostly Sunny
then Chance
T-storms
 Thursday
Night
Thursday Night: A 20 percent chance of showers and thunderstorms before 9pm. Mostly clear, with a low around 74. East wind around 5 mph becoming calm.
Slight Chance
T-storms then
Mostly Clear
 Friday

Friday: Sunny and hot, with a high near 98. Heat index values as high as 105. Northeast wind around 5 mph.
Hot

 Friday
Night
Friday Night: Mostly clear, with a low around 73. Northeast wind around 5 mph becoming calm.
Mostly Clear

 Saturday

Saturday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 99. Calm wind becoming south southeast around 5 mph in the afternoon.
Mostly Sunny
then Chance
T-storms
 Saturday
Night
Saturday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 73. North northeast wind around 5 mph becoming calm. Chance of precipitation is 30%.
Chance
T-storms then
Chance
Showers
 Sunday

Sunday: Mostly sunny, with a high near 95. East wind around 5 mph.
Mostly Sunny

 Sunday
Night
Sunday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 72. East wind around 5 mph. Chance of precipitation is 20%.
Slight Chance
T-storms
Lo 79 °F Hi 100 °F Lo 74 °F Hi 98 °F Lo 73 °F Hi 99 °F Lo 73 °F Hi 95 °F Lo 72 °F

Heat Advisory
 

Overnight
 
 Mostly cloudy, with a low around 79. Southwest wind around 10 mph.
Thursday
 
 A 30 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 100. Heat index values as high as 108. South southwest wind around 5 mph becoming north northwest in the afternoon.
Thursday Night
 
 A 20 percent chance of showers and thunderstorms before 9pm. Mostly clear, with a low around 74. East wind around 5 mph becoming calm.
Friday
 
 Sunny and hot, with a high near 98. Heat index values as high as 105. Northeast wind around 5 mph.
Friday Night
 
 Mostly clear, with a low around 73. Northeast wind around 5 mph becoming calm.
Saturday
 
 A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 99. Calm wind becoming south southeast around 5 mph in the afternoon.
Saturday Night
 
 A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 73. North northeast wind around 5 mph becoming calm. Chance of precipitation is 30%.
Sunday
 
 Mostly sunny, with a high near 95. East wind around 5 mph.
Sunday Night
 
 A slight chance of showers and thunderstorms. Partly cloudy, with a low around 72. East wind around 5 mph. Chance of precipitation is 20%.
Monday
 
 A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 93. Chance of precipitation is 20%.
Monday Night
 
 Partly cloudy, with a low around 73.
Tuesday
 
 Sunny and hot, with a high near 97.
Tuesday Night
 
 A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 74.
Wednesday
 
 A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 97.

 

Forecast from NOAA-NWS for Jacksonville AR.