National Weather Service Forecast for: Newcastle OK
Issued by: National Weather Service Norman, OK
Updated: 12:46 am CDT Jul 6, 2025
 
Overnight

Overnight: Partly cloudy, with a low around 71. South wind around 6 mph.
Partly Cloudy

 Sunday

Sunday: Mostly sunny, with a high near 87. Light south southeast wind increasing to 5 to 9 mph in the morning.
Mostly Sunny

 Sunday
Night
Sunday Night: Partly cloudy, with a low around 70. South southeast wind 5 to 9 mph becoming southwest after midnight.
Partly Cloudy

 Monday

Monday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 87. South wind 5 to 9 mph. Chance of precipitation is 30%.
Chance
T-storms

 Monday
Night
Monday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71. South wind 6 to 9 mph.
Partly Cloudy
then Slight
Chance
T-storms
 Tuesday

Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 90.
Chance
T-storms

 Tuesday
Night
Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 70.
Chance
T-storms

 Wednesday

Wednesday: Mostly sunny, with a high near 91.
Mostly Sunny

 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 72.
Mostly Clear
Lo 71 °F Hi 87 °F Lo 70 °F Hi 87 °F Lo 71 °F Hi 90 °F Lo 70 °F Hi 91 °F Lo 72 °F

 

Overnight
 
 Partly cloudy, with a low around 71. South wind around 6 mph.
Sunday
 
 Mostly sunny, with a high near 87. Light south southeast wind increasing to 5 to 9 mph in the morning.
Sunday Night
 
 Partly cloudy, with a low around 70. South southeast wind 5 to 9 mph becoming southwest after midnight.
Monday
 
 A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 87. South wind 5 to 9 mph. Chance of precipitation is 30%.
Monday Night
 
 A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71. South wind 6 to 9 mph.
Tuesday
 
 A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 90.
Tuesday Night
 
 A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 70.
Wednesday
 
 Mostly sunny, with a high near 91.
Wednesday Night
 
 Mostly clear, with a low around 72.
Thursday
 
 Sunny, with a high near 94.
Thursday Night
 
 Mostly clear, with a low around 74.
Friday
 
 Sunny, with a high near 94.
Friday Night
 
 A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 71.
Saturday
 
 A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.

 

Forecast from NOAA-NWS for Newcastle OK.