National Weather Service Forecast for: Madison AL
Issued by: National Weather Service Huntsville, AL
Updated: 2:50 am CDT Aug 20, 2026
 
Overnight

Overnight: Partly cloudy, with a low around 74. West southwest wind around 5 mph becoming calm.
Partly Cloudy

 Thursday

Thursday: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 95. Heat index values as high as 106. Calm wind becoming southwest around 5 mph in the morning.
Mostly Sunny
then Chance
T-storms
 Thursday
Night
Thursday Night: A 50 percent chance of showers and thunderstorms, mainly after 5am. Mostly cloudy, with a low around 72. West northwest wind around 5 mph becoming calm in the evening. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Chance
T-storms then
Chance
Showers
 Friday

Friday: A 30 percent chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 91. Heat index values as high as 99. Calm wind becoming northwest around 5 mph in the afternoon.
Chance
Showers then
Mostly Sunny
 Friday
Night
Friday Night: Mostly clear, with a low around 69. North northwest wind around 5 mph becoming calm in the evening.
Mostly Clear

 Saturday

Saturday: Sunny, with a high near 92.
Sunny

 Saturday
Night
Saturday Night: Mostly clear, with a low around 69.
Mostly Clear

 Sunday

Sunday: Sunny, with a high near 89.
Sunny

 Sunday
Night
Sunday Night: Partly cloudy, with a low around 67.
Partly Cloudy
Lo 74 °F Hi 95 °F Lo 72 °F Hi 91 °F Lo 69 °F Hi 92 °F Lo 69 °F Hi 89 °F Lo 67 °F

 

Overnight
 
 Partly cloudy, with a low around 74. West southwest wind around 5 mph becoming calm.
Thursday
 
 A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 95. Heat index values as high as 106. Calm wind becoming southwest around 5 mph in the morning.
Thursday Night
 
 A 50 percent chance of showers and thunderstorms, mainly after 5am. Mostly cloudy, with a low around 72. West northwest wind around 5 mph becoming calm in the evening. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
 
 A 30 percent chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 91. Heat index values as high as 99. Calm wind becoming northwest around 5 mph in the afternoon.
Friday Night
 
 Mostly clear, with a low around 69. North northwest wind around 5 mph becoming calm in the evening.
Saturday
 
 Sunny, with a high near 92.
Saturday Night
 
 Mostly clear, with a low around 69.
Sunday
 
 Sunny, with a high near 89.
Sunday Night
 
 Partly cloudy, with a low around 67.
Monday
 
 Mostly sunny, with a high near 88.
Monday Night
 
 Partly cloudy, with a low around 67.
Tuesday
 
 A 20 percent chance of showers. Mostly sunny, with a high near 90.
Tuesday Night
 
 A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Wednesday
 
 A 30 percent chance of showers and thunderstorms. Sunny, with a high near 91.

 

Forecast from NOAA-NWS for Madison AL.