National Weather Service Forecast for: Norman OK
Issued by: National Weather Service Norman, OK
Updated: 1:26 am CDT Aug 20, 2026
 
Overnight

Overnight: A 10 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 77. East southeast wind around 5 mph.
Slight Chance
T-storms

Thursday

Thursday: A 20 percent chance of showers and thunderstorms before 10am.  Mostly sunny and hot, with a high near 103. East wind 3 to 5 mph.
Slight Chance
T-storms then
Mostly Sunny
Thursday
Night
Thursday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 76. East southeast wind 5 to 7 mph.
Decreasing
Clouds

Friday

Friday: Sunny and hot, with a high near 105. Heat index values as high as 108. South wind 3 to 7 mph.
Hot

Friday
Night
Friday Night: A 20 percent chance of showers and thunderstorms after 1am.  Mostly clear, with a low around 77. South southeast wind 6 to 8 mph.
Mostly Clear
then Slight
Chance
T-storms
Saturday

Saturday: Mostly sunny and hot, with a high near 104.
Hot

Saturday
Night
Saturday Night: Mostly clear, with a low around 76.
Mostly Clear

Sunday

Sunday: Mostly sunny and hot, with a high near 101.
Hot

Sunday
Night
Sunday Night: Mostly clear, with a low around 78.
Mostly Clear

Lo 77 °F Hi 103 °F Lo 76 °F Hi 105 °F Lo 77 °F Hi 104 °F Lo 76 °F Hi 101 °F Lo 78 °F

Heat Advisory
 

Overnight
 
A 10 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77. East southeast wind around 5 mph.
Thursday
 
A 20 percent chance of showers and thunderstorms before 10am. Mostly sunny and hot, with a high near 103. East wind 3 to 5 mph.
Thursday Night
 
Mostly cloudy, then gradually becoming mostly clear, with a low around 76. East southeast wind 5 to 7 mph.
Friday
 
Sunny and hot, with a high near 105. Heat index values as high as 108. South wind 3 to 7 mph.
Friday Night
 
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 77. South southeast wind 6 to 8 mph.
Saturday
 
Mostly sunny and hot, with a high near 104.
Saturday Night
 
Mostly clear, with a low around 76.
Sunday
 
Mostly sunny and hot, with a high near 101.
Sunday Night
 
Mostly clear, with a low around 78.
Monday
 
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 104.
Monday Night
 
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 78.
Tuesday
 
Mostly sunny and hot, with a high near 102.
Tuesday Night
 
Partly cloudy, with a low around 77.
Wednesday
 
Mostly sunny and hot, with a high near 100.

 

Forecast from NOAA-NWS for Norman OK.