National Weather Service Forecast for: Newcastle OK
Issued by: National Weather Service Norman, OK
Updated: 1:26 am CDT Apr 6, 2026
 
Overnight

Overnight: Clear, with a low around 43. Southeast wind 3 to 5 mph.
Clear
 Monday

Monday: Sunny, with a high near 72. Calm wind becoming south southeast 5 to 9 mph in the morning.
Sunny
 Monday
Night
Monday Night: Mostly clear, with a low around 43. South wind 7 to 9 mph.
Mostly Clear
 Tuesday

Tuesday: Partly sunny, with a high near 70. South wind 7 to 16 mph, with gusts as high as 22 mph.
Partly Sunny
 Tuesday
Night
Tuesday Night: Mostly cloudy, with a low around 48. South southeast wind 8 to 14 mph, with gusts as high as 18 mph.
Mostly Cloudy
 Wednesday

Wednesday: Mostly sunny, with a high near 72.
Mostly Sunny
 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 54.
Mostly Clear
 Thursday

Thursday: Mostly sunny, with a high near 78.
Mostly Sunny
 Thursday
Night
Thursday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59.
Slight Chance
T-storms
Lo 43 °F Hi 72 °F Lo 43 °F Hi 70 °F Lo 48 °F Hi 72 °F Lo 54 °F Hi 78 °F Lo 59 °F

 

Overnight
 
 Clear, with a low around 43. Southeast wind 3 to 5 mph.
Monday
 
 Sunny, with a high near 72. Calm wind becoming south southeast 5 to 9 mph in the morning.
Monday Night
 
 Mostly clear, with a low around 43. South wind 7 to 9 mph.
Tuesday
 
 Partly sunny, with a high near 70. South wind 7 to 16 mph, with gusts as high as 22 mph.
Tuesday Night
 
 Mostly cloudy, with a low around 48. South southeast wind 8 to 14 mph, with gusts as high as 18 mph.
Wednesday
 
 Mostly sunny, with a high near 72.
Wednesday Night
 
 Mostly clear, with a low around 54.
Thursday
 
 Mostly sunny, with a high near 78.
Thursday Night
 
 A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59.
Friday
 
 A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 79.
Friday Night
 
 A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Saturday
 
 A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 76.
Saturday Night
 
 Showers and thunderstorms likely. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.
Sunday
 
 Showers and thunderstorms likely. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.

 

Forecast from NOAA-NWS for Newcastle OK.