NWS Forecast for Oklahoma City OK

National Weather Service Forecast for: Oklahoma City OK
Issued by: National Weather Service Norman, OK

Updated: 1:26 am CDT Aug 20, 2026

Overnight Slight Chance T-storms	Thursday Slight Chance T-storms then Mostly Sunny	Thursday Night Partly Cloudy	Friday Hot	Friday Night Mostly Clear then Slight Chance T-storms	Saturday Hot	Saturday Night Mostly Clear	Sunday Hot	Sunday Night Mostly Clear
Lo 77 °F	Hi 102 °F	Lo 78 °F	Hi 105 °F	Lo 79 °F	Hi 103 °F	Lo 77 °F	Hi 100 °F	Lo 79 °F

Heat Advisory

Overnight	A 20 percent chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 77. East wind around 6 mph.
Thursday	A 20 percent chance of showers and thunderstorms before 10am. Mostly sunny and hot, with a high near 102. Heat index values as high as 105. East wind around 6 mph.
Thursday Night	Partly cloudy, with a low around 78. East southeast wind around 7 mph.
Friday	Sunny and hot, with a high near 105. Heat index values as high as 109. South southeast wind 5 to 7 mph.
Friday Night	A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 79. East southeast wind around 8 mph becoming south after midnight.
Saturday	Mostly sunny and hot, with a high near 103.
Saturday Night	Mostly clear, with a low around 77.
Sunday	Mostly sunny and hot, with a high near 100.
Sunday Night	Mostly clear, with a low around 79.
Monday	A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 103.
Monday Night	Mostly clear, with a low around 80.
Tuesday	Sunny and hot, with a high near 102.
Tuesday Night	A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 78.
Wednesday	Mostly sunny and hot, with a high near 99.

Forecast from NOAA-NWS for Oklahoma City OK.