| National Weather Service Forecast for:
Newcastle OK Issued by: National Weather Service Norman, OK |
||||||||||||||||||
| Updated: 3:47 pm CDT Sep 12, 2026 | ||||||||||||||||||
|
Heat Advisory
Severe Thunderstorm Watch
| Tonight |
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 74. South southeast wind 9 to 11 mph. |
| Sunday |
Sunny and hot, with a high near 101. Heat index values as high as 104. South wind 8 to 14 mph, with gusts as high as 21 mph. |
| Sunday Night |
Clear, with a low around 76. South southeast wind 11 to 14 mph, with gusts as high as 21 mph. |
| Monday |
Sunny and hot, with a high near 100. South wind 13 to 18 mph, with gusts as high as 28 mph. |
| Monday Night |
Clear, with a low around 76. South wind 16 to 18 mph, with gusts as high as 28 mph. |
| Tuesday |
Sunny and hot, with a high near 99. |
| Tuesday Night |
Mostly clear, with a low around 75. |
| Wednesday |
Sunny and hot, with a high near 98. |
| Wednesday Night |
Mostly clear, with a low around 73. |
| Thursday |
Sunny, with a high near 96. |
| Thursday Night |
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 69. |
| Friday |
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91. |
| Friday Night |
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 66. |
| Saturday |
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86. |
Forecast from NOAA-NWS for Newcastle OK.
