National Weather Service Forecast for: Newcastle OK
Issued by: National Weather Service Norman, OK
Updated: 1:26 am CDT May 26, 2026
 
Today

Today: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 83. Southeast wind 5 to 11 mph.
Mostly Sunny
then Chance
T-storms
 Tonight

Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Increasing clouds, with a low around 63. East southeast wind 6 to 11 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Chance
T-storms then
Showers
Likely
 Wednesday

Wednesday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 77. Southeast wind 6 to 9 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Showers
Likely

 Wednesday
Night
Wednesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 63. Southeast wind 3 to 8 mph. Chance of precipitation is 70%.
Showers
Likely

 Thursday

Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 79. East wind 3 to 7 mph. Chance of precipitation is 70%.
Chance
T-storms then
Showers
Likely
 Thursday
Night
Thursday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 63. Chance of precipitation is 30%.
Chance
T-storms then
Chance
Showers
 Friday

Friday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 82.
Chance
Showers then
Chance
T-storms
 Friday
Night
Friday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Slight Chance
T-storms

 Saturday

Saturday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
Chance
T-storms
Hi 83 °F Lo 63 °F Hi 77 °F Lo 63 °F Hi 79 °F Lo 63 °F Hi 82 °F Lo 65 °F Hi 82 °F

 

Today
 
 A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 83. Southeast wind 5 to 11 mph.
Tonight
 
 A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Increasing clouds, with a low around 63. East southeast wind 6 to 11 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
 
 Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 77. Southeast wind 6 to 9 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
 
 Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 63. Southeast wind 3 to 8 mph. Chance of precipitation is 70%.
Thursday
 
 A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 79. East wind 3 to 7 mph. Chance of precipitation is 70%.
Thursday Night
 
 A chance of showers and thunderstorms. Partly cloudy, with a low around 63. Chance of precipitation is 30%.
Friday
 
 A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 82.
Friday Night
 
 A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Saturday
 
 A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
Saturday Night
 
 A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Sunday
 
 A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.
Sunday Night
 
 A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 62.
Monday
 
 A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 77.

 

Forecast from NOAA-NWS for Newcastle OK.